Entries |
Document | Title | Date |
20090044606 | Robust Carbon Monolith Having Hierarchical Porosity - A carbon monolith includes a robust carbon monolith characterized by a skeleton size of at least 100 nm, and a hierarchical pore structure having macropores and mesopores. | 02-19-2009 |
20090173146 | Temperature programmed low thermal mass fast liquid chromatography analysis system - A temperature programmed low thermal mass fast liquid chromatography system capable of high throughput and low power consumption includes a straight or curved short reloadable low-mass tubular heater with a capillary column extending inside. If the capillary column is long enough, it is coiled to form a coiled capillary LC column (the length of which does not exceed 0.2 m-1.0 m) packed in a singular module package with a heating wire and a temperature sensing wire extending along and in proximity to the LC capillary column. A tubular heater, e.g. a steel tubing, incorporates the LC capillary column, along with the heating wire and the temperatures sensor and is coiled to form a miniature power saving LC module which may be attached outside a chromatography oven. Capillary lengths extend inside the oven between the inlet and outlet of the LC column module and mobile phase source and detector, respectively. An electronic temperature control block is positioned outside the oven cavity and controls the heating of the capillary LC column, as well as other heated zones in the system. | 07-09-2009 |
20090188305 | Reference standard for characterization of rosuvastatin - Provided are rosuvastatin degradation products and their use as a reference standard (including reference marker) for analysis of rosuvastatin. | 07-30-2009 |
20090320571 | DISPERSION AND SEPARATION OF NANOSTRUCTURED CARBON IN ORGANIC SOLVENTS - The present invention relates to dispersions of nanostructured carbon in organic solvents containing alkyl amide compounds and/or diamide compounds. The invention also relates to methods of dispersing nanostructured carbon in organic solvents and methods of mobilizing nanostructured carbon. Also disclosed are methods of determining the purity of nanostructured carbon. | 12-31-2009 |
20100058840 | NEBULIZER WASTE PRESSURE REDUCER FOR HPLC SYSTEMS - A High Performance Liquid Chromatography (HPLC) system including a pressure reducer assembly for reducing pressurized streams to ambient pressure. The pressure reducer assembly includes first and second flow restrictors, each coupled to a common chamber that acts as a surge suppressor that mitigates pressure spikes in the discharge lines. The flow restrictors may comprise tubes having a high length-to-diameter ratio. The pressure losses through the flow restrictors, in combination with transition losses as the flow stream enters and exits the chamber, are sufficient to reduce a discharge stream from a specified inlet pressure to substantially ambient pressure, thus eliminating the need for pressurized waste containers. | 03-11-2010 |
20100126254 | Method for Screening Urine for Organic Acids - The present teachings relate to systems and screening methods for measuring organic acids in urine samples. | 05-27-2010 |
20100162800 | MEDIA COMPOSITIONS FOR ELUTING COMPOUNDS FROM MATRICES AND METHODS FOR MAKING AND USING THEM - Embodiments of the invention provide to apparatuses and media used in drug elution studies and methods for making and using them. One embodiment of the invention is a drug elution method that can be used for in-vitro studies of a matrix impregnated with a compound such as a drug blended polymer matrix. Such methods and materials can be used for example to assess and control the manufacturing process variability of drug eluting implantable devices such as cardiac leads. | 07-01-2010 |
20100288024 | DEGASIFIER AND LIQUID CHROMATOGRAPH EQUIPPED THEREWITH - The present invention relates to a deaerator | 11-18-2010 |
20100307226 | APPARATUS, KITS AND METHODS FOR DETERMINING THE PRESENCE OR ABSENCE OF MINERALOCORTICOIDS IN SAMPLES - Embodiments of the present invention feature apparatus, kits and methods for detecting the presence or absence of a mineralocorticoid in biological samples. The methods, apparatus and kits feature a high performance liquid chromatography system with a column for receiving one or more biological samples potentially having mineralocorticoid, said chromatography system receiving one or more biological samples at a first time and separating the compounds in retained peaks comprising at least mineral corticoid retained peak for a mineralocorticoid in the event said mineralocorticoid is present at a mineralocorticoid retention time. And, a mass spectrometer in fluid communication with the high performance liquid chromatography system receives one or more of said retained peaks including the mineralocorticoid retained peak at the mineralocorticoid retention time, and produces a signal to allow said mineralocorticoid to be identified by retention peak and mass charge values. | 12-09-2010 |
20110005304 | FLOW CONTROL IN HIGH PERFORMANCE LIQUID CHROMATOGRAPHY - A method for controlling the flow of liquid in a high performance liquid chromatography apparatus. The method includes operating a pump, measuring the liquid pressure downstream of the pump, measuring the liquid flow rate downstream of the pump, and controlling the operation of the pump. In the method, it is automatically determined whether the pump is controlled to achieve a desired pressure or controlled to achieve a desired flow rate. Fuzzy logic can be applied in the method to determine the switch between the control modes. | 01-13-2011 |
20110041589 | NEW HPCL METHOD - The present invention relates to new HPLC methods for the analysis of the drug substance clopidogrel and related substances. In a first method the mobile phase comprises two or more liquids, and the relative concentration of the liquids is varied to a predetermined gradient. In a second method the mobile phase comprises a polar protic organic solvent, and the stationary phase comprises a gel. The present invention also relates to a method for analysing a substance, comprising the detection and optional quantification of one or more specific impurities. | 02-24-2011 |
20110072891 | CONTINUOUS COUNTERCURRENT TANGENTIAL CHROMATOGRAPHY (CCTC) - The present invention is a system for continuous, single-pass countercurrent tangential chromatography having multiple single-pass modules. A single-pass binding step module is used for binding product from an unpurified product solution with a resin slurry. A single-pass washing step module is used for washing impurities from the resin slurry. A single-pass elution step module for eluting an output of the washing step module is used as purified product solution. A single-pass regeneration step module is used for regenerating the resin slurry. In the current invention, the resin slurry flows in a continuous, single-pass through each of the single-pass modules, and one or more of the single-pass modules comprise two or more stages with permeate flow directed countercurrent to resin slurry flow within that single-pass module. The present invention replaces conventional column chromatography and may be made disposable. | 03-31-2011 |
20110088457 | COMPOSITIONS, SYSTEMS AND METHODS FOR THE DIAGNOSIS, PREVENTION AND TREATMENT OF DISORDERS ASSOCIATED WITH AZETIDINE-2-CARBOXYLIC ACID - Methods and systems for detecting azetidine-2-carboxylic acid (Aze) in food consumable by humans and animals are provided. Also provided are methods and systems for inactivating Aze in food and byproducts, as well as other methods for the diagnosis, prevention, and treatment of disorders associated with Aze. | 04-21-2011 |
20110107822 | Interfacing With A Digital Microfluidic Device - Described are techniques for use in connection with analyzing a droplet. One or more droplets of a sample are formed on a surface of a digital microfluidic device. The droplets are manipulated to perform processing using said one or more droplets generating one or more resulting droplets. The one or more resulting droplets may be transferred from the microfluidic device to another device for analysis. The one or more droplets may also be provided to the digital microfluidic device from yet another device or analysis instrument. | 05-12-2011 |
20110113866 | Microengineered Supercritical Fluid Chromatography System - This invention describes a microengineered SFC system for rapidly and efficiently separating the constituents of a complex mixture. The SFC system includes a microchannel that is microfabricated from a suitable substrate so that it forms a chromatographic column for separation of chemicals. The surface area of the microchannel of the column is sufficiently small as to permit use of miniature and relatively inexpensive pumps, and the thermal mass of the microengineered column is sufficiently low as to permit rapid temperature cycling using a miniature, low power and inexpensive heating element. At least a portion of this microchannel is packed with suitable sorbent materials or includes surfaces which are suitably coated with sorbent, or both, so as to retain and elute analyte under certain conditions. As a result analyte passing within this microchannel undergoes chromatographic separation. | 05-19-2011 |
20110138889 | Method of evaluating prostatic disease - According to the method of evaluating prostatic disease of the present invention, amino acid concentration data on concentration values of amino acids in blood collected from a subject to be evaluated is measured, and the state of prostatic disease including at least one of prostatic cancer and prostatic hypertrophy in the subject is evaluated based on the concentration value of at least one of Tau, Thr, Ser, Asn, Glu, Pro, Gly, Ala, Cit, ABA, Val, Met, Ile, Leu, Phe, His, Trp, Orn, Lys, and Cys2 contained in the measured amino acid concentration data of the subject. | 06-16-2011 |
20110203352 | METHOD AND DEVICE FOR DIRECT QUANTITATIVE DETERMINATION OF PESTICIDE SEED LOADING ON INDIVIDUAL SEEDS - The present invention provides methods and devices for the direct quantitative analysis of multiple pesticides on individual seeds with or without fluorescent pigments. The seed varieties include corn, cotton, wheat, soybean and canola. | 08-25-2011 |
20110219858 | COMPOSITION FOR USE AS A PEPTIDE RETENTION STANDARD AND A METHOD OF PREDICTING PEPTIDE HYDROPHOBICITY IN LIQUID CHROMATOGRAPHY - A composition comprising synthetic peptides for use as a peptide retention standard in liquid chromatography applications is disclosed Said synthetic peptides have a broad range of hydrophobicity while maintaining low variation in their molecular weights The synthetic peptides disclosed consist of the ammo acid sequences LGGGGGGDGSR, LGGGGGGDFR, LLGGGGDFG, LLLGGDFR, LLLLDFR, LLLLLDFR A method of predicting the hydrophobicity of an unknown peptide in liquid chromatography using a composition of peptide retention standards and a method of developing a Universal Hydrophobicity Index (UHI) for the measurement of peptide hydrophobicity in liquid chromatography are also described | 09-15-2011 |
20110259089 | Devices Having An Inert Surface And Methods Of Making Same - The present invention features devices and methods of making such devices for performing liquid chromatography having at least one wetted surface having a composition of a polysilazane. | 10-27-2011 |
20110302997 | LIQUID CHROMATOGRAPH APPARATUS - A liquid chromatograph apparatus capable of eliminating a deviation of measurement results originating from an instrumental error is provided. | 12-15-2011 |
20120160015 | METHODS FOR PREDICTING FOULING TENDENCIES OF HYDROCARBON CONTAINING FEEDSTOCKS - Disclosed is a method involving the steps of (a) precipitating an amount of asphaltenes from a liquid sample of a first hydrocarbon-containing feedstock having solvated asphaltenes therein with one or more first solvents in a column; (b) determining one or more solubility characteristics of the precipitated asphaltenes; (c) analyzing the one or more solubility characteristics of the precipitated asphaltenes; and (d) correlating a measurement of feedstock fouling tendencies for the first hydrocarbon-containing feedstock sample with a mathematical parameter derived from the results of analyzing the one or more solubility characteristics of the precipitated asphaltenes. | 06-28-2012 |
20120167671 | METHOD AND APPARATUS FOR TESTING TRANSDERMAL MEDICAMENTS - The invention relates to an apparatus and method for testing transdermal medicaments, wherein the sample tested in a membrane penetration cell resides in the open sample compartment of said cell and is exposed to environmental factors such as temperature, air flow, light and air humidity during testing the absorption and penetration. | 07-05-2012 |
20120324986 | SPECTRAL AND TEMPORAL LASER FLUORESCENCE ANALYSIS SUCH AS FOR NATURAL AQUATIC ENVIRONMENTS - An Advanced Laser Fluorometer (ALF) can combine spectrally and temporally resolved measurements of laser-stimulated emission (LSE) for characterization of dissolved and particulate matter, including fluorescence constituents, in liquids. Spectral deconvolution (SDC) analysis of LSE spectral measurements can accurately retrieve information about individual fluorescent bands, such as can be attributed to chlorophyll-a (Chl-a), phycobiliprotein (PBP) pigments, or chromophoric dissolved organic matter (CDOM), among others. Improved physiological assessments of photosynthesizing organisms can use SDC analysis and temporal LSE measurements to assess variable fluorescence corrected for SDC-retrieved background fluorescence. Fluorescence assessments of Chl-a concentration based on LSE spectral measurements can be improved using photo-physiological information from temporal measurements. Quantitative assessments of PBP pigments, CDOM, and other fluorescent constituents, as well as basic structural characterizations of photosynthesizing populations, can be performed using SDC analysis of LSE spectral measurements. | 12-27-2012 |
20130000389 | CHEMICAL PROFILE OF DETECTING BIOACTIVE COMPONENTS OF QUINONES, STILBENES, FLAVONES AND ALKALOIDS - Disclosed are a method for analyzing chemical profiles of components from a herbal medicine product. Components may include quinone (including rhein, sennoside A and/or aloe-emodin), stilbene containing resveratroloside, flavone including baicalin, and/or alkaloid including berberine and/or palmatine. The method includes steps of: (a) respectively chromatographing a methanol extract of product and standard(s) corresponding to the component(s) using HPLC; (b) comparing HPLC chromatogram of extract and standard(s); and (c) analyzing the chemical profiles of the product from the comparison results. | 01-03-2013 |
20130008237 | NEEDLE SEAL FORCE SENSOR - Described are techniques for force sensing. A computing device is configured to have a desired force setting. A first vertical position of a needle is determined using the computer device. A control signal is sent from the computing device to a positioning device. In response to the control signal, the needle is positioned at the first vertical position. When in the first vertical position, surfaces of a tip of the needle are in contact with surfaces of an opening of a sealing member and positioning the needle causes application of a force at surfaces of the opening in contact with surfaces of the tip of the needle. In response to application of the force, a spring is compressed a distance that is proportional to the force. The force is measured using a force sensor. | 01-10-2013 |
20130008238 | PROCESS FOR PREPARING AZACYTIDINE INTERMEDIATE - The present invention provides a processes for preparing 5-Azacytidine, and intermediates thereof. The present invention further provides an analytical method for determining the purity of 5-Azacytidine in a sample. | 01-10-2013 |
20130031965 | METHOD OF TESTING FOR A MILK TRISACCHARIDE - A method of testing for a trisaccharide in milk includes the step of providing a predetermined amount of milk. The method also includes the step of isolating a trisachharide of the milk with a hydride insertion reaction to identify the molecule as phosphorylated. Also included in the method is the step of obtaining a mass spectrum of the isolated milk trisaccharide sample. The method further includes the step of identifying a molecular structure of the isolated milk trisaccharide sample. | 02-07-2013 |
20130074585 | PROCESS FOR PRODUCING SUGAR CHAIN DERIVATIVE, STRUCTURE ANALYSIS METHOD, AND SUGAR CHAIN DERIVATIVE - A process for preparing an oligosaccharide derivative from an oligosaccharide mixture, the process being characterized in that the process comprises the steps of (a) introducing a lipophilic group into oligosaccharides of the mixture to obtain a mixture of oligosaccharide derivatives, and (b) treating the oligosaccharide derivative mixture by serotonin affinity column chromatography. | 03-28-2013 |
20130199277 | HEMOGLOBIN S ANALYSIS METHOD, HEMOGLOBIN A2 ANALYSIS METHOD, AND HEMOGLOBIN A0 ANALYSIS METHOD - An object of the present invention is to provide a hemoglobin S analysis method, a hemoglobin A2 analysis method, and a hemoglobin A0 analysis method which enable even highly retentive hemoglobin S, hemoglobin A2 and hemoglobin A0 to be separated in sharp, highly symmetrical peaks by means of cation-exchange high-performance liquid chromatography. | 08-08-2013 |
20130205877 | GLATIRAMER ACETATE MOLECULAR WEIGHT MARKERS - Aspects of the present application relate to molecular weight markers of glatiramer acetate for accurate determination of the average molecular weight of glatiramer acetate. | 08-15-2013 |
20130233060 | SOLVENT DELIVERY DEVICE AND LIQUID CHROMATOGRAPH - A solvent delivery device comprises a solvent delivery pump and a flow path switching valve. The flow path switching valve is connected to downstream ends of mobile phase sending flow paths and the solvent delivery pump is to be connected to one of the mobile phase sending flow paths by switching the flow path switching valve. At least one of the mobile phase sending flow paths includes a buffer solution sending flow path, and the buffer solution sending flow path includes a buffer solution storage section, a cleaning solution storage section, and a mobile phase switching valve for switching connection of the flow path switching valve to one of the storage sections. | 09-12-2013 |
20130247654 | METHOD FOR EVALUATING SENSORY STIMULUS COMPONENT - A method for evaluating a sensory stimulus component in a test component with a taste-analyzing liquid chromatograph system. The method includes: measuring the test component with the taste-analyzing liquid chromatograph system to obtain taste evaluation data; and evaluating a persistence of a sensory stimulus intensity of the test component from a continuous intensity change of the test component using the taste evaluation data as an index. | 09-26-2013 |
20140047905 | Electrospray Emitter Assembly - An electrospray emitter assembly ( | 02-20-2014 |
20140090452 | CHROMATOGRAPHY OF METAL COMPLEXES - A high performance liquid chromatography method to routinely and reproducibly detect and quantitate metal complexes is provided. The metal complexes used in the method of the invention can be different metal complexes, or they can be stereoisomers of the same metal complexes. The high performance liquid chromatography method of the present invention is suitable for the separation of diastereomers of the same metal complexes. Also provided is a chiral high performance liquid chromatography method to separate enantiomers of metal complexes. Superoxide dismutase mimetic compounds are also provided. | 04-03-2014 |
20140090453 | CHROMATOGRAPHY OF POLYMERS - The invention provides an apparatus for polymer chromatography, comprising at least one column that comprises a first stationary phase comprising one of the following: A) a material comprising at least one non-carbon atom, excluding glass or a metal, selected from molybdenum sulfide MoS2, tungsten sulfide WS2, silicon carbide SiC, boron nitride BN, or combinations thereof, or B) glass, or a metal, or combinations thereof, and a material comprising at least one non-carbon atom selected from molybdenum sulfide MoS2, tungsten sulfide WS2, silicon carbide SiC, boron nitride BN, or combinations thereof. The invention also provides a method for polymer chromatography, comprising introducing a solution, comprising a polymer, into a liquid flowing through a first stationary phase, and wherein the first stationary phase comprises one of foregoing materials (A) or (B). | 04-03-2014 |
20140096596 | POROUS MATERIALS FOR SOLID PHASE EXTRACTION AND CHROMATOGRAPHY AND PROCESSES FOR PREPARATION AND USE THEREOF - The invention provides novel porous materials that are useful in chromatographic processes, e.g., solid phase extraction, and that provide a number of advantages. Such advantages include superior wetting characteristics, selective capture of analytes of interest, and non-retention of interfering analytes. The invention advantageously provides novel porous materials having a large percentage of larger pores (i.e. wide pores). The invention advantageously provides novel porous materials that overcome the problems of SPE of biological samples. | 04-10-2014 |
20140116118 | IPA AS A THERAPEUTIC AGENT, AS A PROTECTIVE AGENT, AND AS A BIOMARKER OF DISEASE RISK - Indole-3-propionic acid as a marker and for treatment for Huntington Disease. | 05-01-2014 |
20140130580 | ZERO DEAD VOLUME ROBUST FLUIDIC CONNECTION SYSTEM - A fluidic connection system may comprise a port which includes a capillary tube receptacle with an end seal face and a threaded wall. The fluidic connection system may also comprise a capillary tube that includes a front end face for sealingly abutting against the end seal face of the port. On the capillary tube, a flange may be affixed at a distance from the front end face of the capillary tube. The fluidic connection system may further comprise a fitting nut that includes an axial hole to allow the capillary tube to pass therethrough and a matching threaded wall corresponding to the threaded wall of the port. The fitting nut may be slidably coupled with the capillary tube behind the flange. The distance at which the flange is affixed may be predetermined such that when the flange is pushed forward by the fitting nut, the front end face of the capillary tube abuts directly against the end seal face of the port. | 05-15-2014 |
20140196523 | 5,6,7,8-TETRAHYDRO-6-[N,N-BIS[(2-THIENYL)ETHYL]] AMINO-1-NAPHTHOL, AND PREPARING METHOD AND USE THEREOF - The present disclosure relates to 5,6,7,8-tetrahydro-6-[N,N-bis[(2-thienypethyl]]amino-1-naphthol, a method for preparing the same, and use of 5,6,7,8-tetrahydro-6-[N,N-bis[(2-thienypethyl]]amino-1-naphthol as a reference compound for determining an impurity in rotigotine or a preparation thereof. | 07-17-2014 |
20140260562 | METHOD OF MEASURING THE DIGESTIBILITY OF A FOOD PROTEIN - A method of measuring digestibility of food proteins is disclosed, the method comprising using protease enzymes in combination with an ultra filtration step. | 09-18-2014 |
20140260563 | EPOXY CHEMISTRY DERIVED MATERIALS AS REVERSED-PHASE AND HYDROPHOBIC INTERACTION CHROMATOGRAPHY MEDIA, METHOD FOR THEIR SYNTHESIS AND USE - This invention provides aqueous-compatible, polar-embedded reversed-phase stationary phase compositions, devices and systems comprising the stationary phases as well as methods of producing these compositions using epoxide ring-opening reactions. Also provided are methods of using the stationary phases of the invention in separations. | 09-18-2014 |
20140338429 | METHOD OF SEPARATION OF LIPID AND BIOLOGICAL MOLECULAR SPECIES USING HIGH PURITY CHROMATOGRAPHIC MATERIALS COMPRISING AN IONIZABLE MODIFIER - The present invention provides methods of separating, profiling and analyzing molecular species contained within a biological sample using a high purity chromatographic material (HPCM) comprising a chromatographic surface wherein the chromatographic surface comprises a hydrophobic surface group and one or more ionizable modifiers with the proviso that when the ionizable modifier does not contain a Zwitterion, the ionizable modifier does not contain a quaternary ammonium ion moiety. | 11-20-2014 |
20150013438 | ANALYTICAL METHOD FOR DETECTING SULFATED OLIGOSACCHARIDES - The present invention describes an analytical method for detecting and quantitating poly-sulfated oligosaccharides, including Fondaparinux sodium, using hydrophilic interaction ultra-performance liquid chromatography (HILIC-UPLC) coupled with a charged aerosol detector (CAD) or a mass spectrometer (MS). This analytical method provides in-process control in a total synthesis of highly sulfated oligosaccharides by separation, quantification and mass identification. Systems and conditions utilizing such methods are also provided. | 01-15-2015 |
20150068291 | MICRO-SOLID PHASE EXTRACTION OF HALOACETIC ACIDS - The micro-solid phase extraction of haloacetic acids is a procedure that extracts haloacetic acids from aqueous solution using iron-modified rice husk silica as the stationary phase or sorbent. Rice husks provide an excellent source of silica. The sorbent is prepared by incinerating the husks to produce a powder that is treated with 1.0 M nitric acid for 24 hours to produce rice husk silica. The silica is washed with base, cetyltrimethylammonium bromide is added, and then titrated with a 10% Fe | 03-12-2015 |
20150293064 | LIQUID CHROMATOGRAPH - A liquid chromatograph includes a liquid chromatograph unit that has a pump sending an eluent to a detector and a control unit that controls the liquid to be sent by the pump based on a predetermined time table. The control unit stores an elution response of the liquid chromatograph unit which is obtained when a predetermined command value is input and another elution response which is obtained when the same command value is input to another liquid chromatograph. The time table is converted in the control unit based on the elution response and the other elution response to obtain respective elution profiles. In this manner, even when a measuring method related to another liquid chromatograph is used, it is possible to provide a liquid chromatograph capable of obtaining measurement results which are the same as those obtained when the measuring method is used in the other liquid chromatograph. | 10-15-2015 |
20160054272 | Liquid Delivery Device and Chemical Analysis Apparatus Using Liquid Delivery Device - A chemical analysis apparatus includes a liquid delivery device and a liquid discharge unit discharging the delivered first liquid and second liquid, the liquid delivery device including: a first liquid delivery unit delivering a first liquid containing an analysis object; a second liquid delivery unit delivering a second liquid not containing an analysis object; a measurement unit measuring physical properties of the delivered first liquid; a liquid pool containing the delivered first and second liquid; and a plurality of passive valves. The liquid pool includes first and second liquid pools. The apparatus further includes: a first flow passage connecting the first liquid delivery unit and the liquid delivery device; a second flow passage connecting the measurement unit and the second liquid pool; a third flow passage connecting the second liquid, delivery unit and the liquid discharge unit; a first air hole provided in the first liquid pool; and a second air hole provided in the second liquid pool. The passive valves include first and second passive valves disposed between one end of the first liquid pool and the third flow passage and between the other end of the first liquid pool and one end of the second liquid pool, respectively. | 02-25-2016 |
20160054276 | METHOD FOR ESTABLISHING SHENQI FUZHENG INJECTION FINGERPRINT SPECTRUM - A method for establishing a Shenqi Fuzheng injection fingerprint spectrum, comprising: employing an ultra-high voltage liquid chromatography mass spectrometer to test the Shenqi Fuzheng injection, the chromatography conditions including: chromatographic column: Agilent Zorbax Eclipse Plus C18, 2.1 mm×100 mm, 1.8 μm; mobile phase: mobile phase A is 0.1% formic acid aqueous solution, and mobile phase B is 0.1% formic acid acetonitrile solution; employing gradient elution procedure as follows: 0-0.5 min, 95% of mobile phase A, and 5% of mobile phase B; 0.5-10 min, 95%-75% of mobile phase A, and 5%-25% of mobile phase B; 10-15 min, 75%-45% of mobile phase A, and 25%-55% of mobile phase B; 15-18 min, 45%-0% of mobile phase A, and 55%-100% of mobile phase B; and 18-20 min, 0% of mobile phase A, and 100% of mobile phase B. | 02-25-2016 |
20160090450 | Polyarylene ether sulfone (PAES) polymers - A poly(arylether sulfone) polymer [(t-PAES) polymer, herein after], wherein more than 70% moles of the recurring units are recurring units (R | 03-31-2016 |
20160161454 | HIGH RESOLUTION ANALYTE RECOVERY SYSTEM AND METHOD - Analyte separation systems for use in conjunction with chromatography separation devices and techniques are described. Disclosed systems include modular components that can provide for individualized design of separation schemes to better fit the needs of the user. In addition, the systems can be automated for efficient use of time. The system can include a mixing module for combination of fractions with an agent that can improve the recovery of the analyte from the fraction. Other modules can remove materials from the fluid flow through the system as waste or for recapture. Additional modules can be combined so as to provide parallel processing of multiple streams, which can further improve efficiency of the system. | 06-09-2016 |