| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 378047000 | Fluid analyte | 7 |
| 20090116613 | X-RAY FLUORESCENCE SPECTROMETER - An X-ray fluorescence spectrometer for measuring the concentration of sulfur contained in a sample (S), by irradiating the sample (S) with primary X-rays from an X-ray tube ( | 05-07-2009 |
| 20090175410 | FLOW METHOD AND APPARATUS FOR SCREENING CHEMICALS USING MICRO X-RAY FLUORESCENCE - Method and apparatus for screening chemicals using micro x-ray fluorescence. A method for screening a mixture of potential pharmaceutical chemicals for binding to at least one target binder involves flow separating a solution of chemicals and target binders into separated components, exposing them to an x-ray excitation beam, detecting x-ray fluorescence signals from the components, and determining from the signals whether or not a binding event between a chemical and target binder has occurred. | 07-09-2009 |
| 20090213988 | SAMPLE MODULE WITH SAMPLE STREAM SPACED FROM WINDOW, FOR X-RAY ANALYSIS SYSTEM - An x-ray analysis system with an x-ray source for producing an x-ray excitation beam directed toward an x-ray analysis focal area; and a sample chamber for presenting a fluid sample to the x-ray analysis focal area. The x-ray excitation beam is generated by an x-ray engine and passes through an x-ray transparent barrier on a wall of the chamber, to define an analysis focal area within space defined by the chamber. The fluid sample is presented as a stream suspended in the space and streaming through the focal area, using a laminar air flow and/or pressure to define the stream. The chamber's barrier is therefore separated from both the focal area and the sample, resulting in lower corruption of the barrier. | 08-27-2009 |
| 20130235974 | X-RAY FLUORESCENCE ANALYZER - An x-ray fluorescence apparatus for measuring properties of a sample fluid, the apparatus comprising a housing having an inlet and an outlet; a test chamber disposed within the housing, the test chamber comprising an injection port in fluid communication with the inlet; a slide disposed within the test chamber, the slide comprising a sample cavity; and a test port; an x-ray fluorescence spectrometer disposed within the housing, and at least one motor operatively coupled to the slide of the test chamber. Also, a method of testing a fluid, the method comprising injecting a fluid through an injection port of a test chamber into a sample cavity of a slide; moving the slide laterally within the test chamber to an intermediate position; moving the slide laterally within the test chamber to a test position; and actuating an x-ray fluorescence spectrometer to sample the fluid within the sample cavity when the slide is in the test position. | 09-12-2013 |
| 20140198898 | ONLINE MONITORING OF CONTAMINANTS IN CRUDE AND HEAVY FUELS, AND REFINERY APPLICATIONS THEREOF - A technique, including associated method and system, for on-line measurement of a trace element in a crude or heavy fuel stream for a refinery, including in one embodiment: providing at least one x-ray fluorescence (“XRF”) analyzer at a point for the refinery; analyzing the petroleum stream for chlorine using the analyzer; and providing results from the analyzer to refinery operators, to improve refinery operations. The analyzer may be a monochromatic wavelength XRF analyzer, wherein the analyzer focuses energy to/from the stream using an x-ray engine having at least one focusing, monochromating x-ray optic. The analyzer may be an MWDXRF or ME-EDXRF analyzer; and the trace element may be one or more of the following elements: S, Cl, P, K, Ca, V, Mn, Fe, Co, Ni, Cu, Zn, Hg, As, Pb, and Se; and in one embodiment the stream is crude, and the trace element is chlorine. | 07-17-2014 |
| 20150023467 | Well Plate - The present invention includes an apparatus for preparing samples for measurement by x-ray fluorescence spectrometry. The apparatus comprises a plate having one or more holes passing through the plate. The holes are covered by a film on one side of the plate. The holes are less than 500 micrometers across in one dimension where the film covers the holes. The film is translucent to x-rays. The present invention also includes an apparatus for preparing samples for measurement by x-ray fluorescence spectrometry. The apparatus comprises a plate having one or more holes passing through the plate. The holes are covered on one side of the plate by a detachable cover forming a water-tight seal against the plate. The cover is substantially free of the elements osmium, yttrium, iridium, phosphorus, zirconium, platinum, gold, niobium, mercury, thallium, molybdenum, sulfur, lead, bismuth, technetium, ruthenium, chlorine, rhodium, palladium, argon, silver, and thorium. The holes are less than about 500 micrometers across in one dimension where the cover covers the holes. The present invention also includes a method for preparing samples for measurement by x-ray fluorescence spectrometry. The method comprises providing a solution of with less than 10 micromolar solute and a volume of between about 2 microliters and about 2 milliliters. The solution is concentrated and analyzed using x-ray fluorescence spectrometry. | 01-22-2015 |
| 20160202194 | LUBRICANT ANALYSIS USING X-RAY FLUORESCENCE | 07-14-2016 |
