Masking agent - Misplaced Pages

Chemical reagent with chemical interference properties For the film about the rock band The Drugs, see Masking Agents.

A masking agent is a reagent used in chemical analysis which reacts with chemical species that may interfere in the analysis.

In sports a masking agent is used to hide or prevent detection of a banned substance or illegal drug like anabolic steroids or stimulants. Diuretics are the simplest form of masking agent and work by enhancing water loss via urine excretion and thus diluting the urine, which results in lower concentrations of the banned substance as more of it is being excreted from the body making it more difficult for laboratories to detect.

References

"Masking agent (chemistry) - Britannica Online Encyclopedia". Retrieved 2007-11-09.

"Masking Agents FAQ". Archived from the original on 2011-07-17. Retrieved 2011-01-20. Masking Agents FAQ, National Strength and Conditioning Assoc.

v t e Analytical chemistry
Instrumentation	Atomic absorption spectrometer Flame emission spectrometer Gas chromatograph High-performance liquid chromatograph Infrared spectrometer Mass spectrometer Melting point apparatus Microscope Optical spectrometer Spectrophotometer
Techniques	Calorimetry Chromatography Electroanalytical methods Gravimetric analysis Ion mobility spectrometry Mass spectrometry Spectroscopy Titration
Sampling	Coning and quartering Dilution Dissolution Filtration Masking Pulverization Sample preparation Separation process Sub-sampling
Calibration	Chemometrics Calibration curve Matrix effect Internal standard Standard addition Isotope dilution
Prominent publications	Analyst Analytica Chimica Acta Analytical and Bioanalytical Chemistry Analytical Chemistry Analytical Biochemistry
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