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Near-infrared spectroscopy is, therefore, not a particularly sensitive technique, but it can be very useful in probing bulk material with little to no sample preparation. The molecular overtone and combination bands seen in the near-IR are typically very broad, leading to complex spectra; it can be difficult to assign specific features to ...
A list of chemical analysis methods with acronyms. A. Atomic absorption spectroscopy (AAS) Atomic emission spectroscopy (AES) Atomic fluorescence spectroscopy (AFS) ...
Chemical laboratory apparatus: for Chemical tests: Chromatography: One of the basic modern "chemical examination" of body fluids and viscera;video links for details •Gas Chromatography or Gas Liquid Chromatography(GLC)-do- •Planar Chromatography-do- •Paper Chromatography-do- •Thin layer chromatography-do- •Affinity chromatography-do-
All analytical procedures should be validated. Identification tests are conducted to ensure the identity of an analyte in a sample through comparison of the sample to a reference standard through methods such as spectrum, chromatographic behavior, and chemical reactivity. [5] Impurity testing can either be a quantitative test or a limit test.
The cuvette is filled with sample, light is passed through the sample and intensity readings are taken. The slope spectroscopy technique can be applied using the same methods as in absorption spectroscopy. With the advent of accurate linear stages, variable pathlength absorption spectroscopy is easily applied experimentally.
In many mass spectrometry ionization methods, the sample must be in the liquid or gas phase for the ionization method to work. Sample preparation to ensure proper ionization can be difficult, but can be made easier by coupling the mass spectrometer to some chromatographic equipment. Gas chromatography(GC) or liquid chromatography(LC) can be ...
A laboratory specimen is sometimes a biological specimen of a medical patient's tissue, fluids, or other samples used for laboratory analysis to assist in differential diagnosis or staging of a disease process. These specimens are often the most reliable method of diagnosis, depending on the ailment.
This toolbox is a set of Matlab-based tools for the analysis of functional near-infrared spectroscopy (fNIRS). This toolbox defines the +nirs namespace and includes a series of tools for signal processing, display, and statistics of fNIRS data. This toolbox is built around an object-oriented framework of Matlab classes and namespaces. [18]