Thermo Scientific Portable Analytical Instruments Inc.
Thermo Scientific Portable Analytical Instruments Inc. Patent applications | ||
Patent application number | Title | Published |
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20130016337 | HEROIN DETECTION BY RAMAN SPECTROSCOPY FROM IMPURE COMPOSITIONS COMPRISING AN INTERFERING FLUORESCENT CONTAMINANT - A method of identifying the presence of heroin in an impure heroin composition which contains heroin and at least one fluorescent contaminant which interferes with a Raman signal from the heroin. The method may include contacting the mixture with a solvent such as an alcohol, then contacting the resulting alcohol composition with a SERS surface. The surface may then be exposed to laser light from a hand-held Raman spectrometer to detect a Raman signal from the heroin. An apparatus for performing the method is also provided. | 01-17-2013 |
20120257716 | Localization of an Element of Interest by XRF Analysis of Different Inspection Volumes - An apparatus and method are disclosed for localizing an element of interest in a sample by comparing XRF spectra acquired from at least two distinct but overlapping inspection volumes. The inspection volumes are varied by changing the geometry of the exciting x-ray and/or fluoresced x-ray beam(s), which may be accomplished by repositioning multi-apertured collimators. Comparison of the XRF spectra acquired from different inspection volumes provides an indication as to whether the element of interest (e.g., lead) is present in a coating layer, in the underlying bulk material, or in both. | 10-11-2012 |