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*  Drug test
... screen is positive then another aliquot of the sample is used to confirm the findings by gas chromatography-mass spectrometry ( ... Due to the very low levels of substances in the breath air, liquid chromatography-mass spectrometry has to be used to analyze ... GC-MS) or liquid chromatography - mass spectrometry methodology. If requested by the physician or employer, certain drugs are ... The confirmation test in most laboratories (and all SAMHSA certified labs) is performed using mass spectrometry, and is precise ...
*  Matrix-assisted laser desorption/ionization
... polymers by size-exclusion chromatography/matrix-assisted laser desorption/ionization time-of-flight mass spectrometry". Rapid ... The gas phase proton transfer model, implemented as the coupled physical and chemical dynamics (CPCD) model, of UV laser MALDI ... FT-ICR Mass Spectrometry Offers High Resolution and Mass Accuracy for Pr". "Ultrahigh resolution mass spectrometry". Anal ... Zenobi, R.; Knochenmuss, R. (1998). "Ion formation in MALDI mass spectrometry". Mass Spectrometry Reviews. 17 (5): 337-366. ...
*  Gas chromatography-mass spectrometry
Capillary electrophoresis-mass spectrometry Ion-mobility spectrometry-mass spectrometry Liquid chromatography-mass spectrometry ... Gas chromatography-mass spectrometry (GC-MS) is an analytical method that combines the features of gas-chromatography and mass ... "Early gas chromatography/mass spectrometry". Journal of the American Society for Mass Spectrometry. 4 (5): 367-371. doi:10.1016 ... "Gas chromatography-mass spectrometry with supersonic molecular beams". J Mass Spectrom. 43 (2): 141-63. Bibcode:2008JMSp...43.. ...
*  Pyrolysis-gas chromatography-mass spectrometry
"Hyphenation of aqueous liquid chromatography to pyrolysis-gas chromatography and mass spectrometry for the comprehensive ... Pyrolysis-gas chromatography-mass spectrometry is a method of chemical analysis in which the sample is heated to decomposition ... "Derivatization in mass spectrometry --7. On-line derivatisation/degradation". European Journal of Mass Spectrometry. 12 (1): 1- ... to produce smaller molecules that are separated by gas chromatography and detected using mass spectrometry. Pyrolysis is the ...
*  ExoMars 2020 surface platform
Gas chromatography-mass spectrometry for atmospheric analysis (MGAP). Developed by Russia. Power Russia is evaluating the ... The science payload mass is about 45 kg and consists of: The lander radio-science experiment (LaRa) will study the internal ...
*  Hydroxycarbamide
"Plasma hydroxyurea determined by gas chromatography-mass spectrometry". Journal of Chromatography B. 877 (4): 446-450. doi: ...
*  Butylated hydroxytoluene
Confirmation was made via gas chromatography-mass spectrometry analysis. Industrially, BHT is prepared by the reaction of p- ...
*  Cinnamaldehyde
"Cinnamaldehyde content in foods determined by gas chromatography-mass spectrometry". Journal of Agricultural and Food Chemistry ... Lay summary - Science Daily (July 16, 2004). Ma WB, Feng JT, Jiang ZL, Zhang X (2014). "Fumigant Activity of 6 Selected ...
*  Streptomyces longisporoflavus
"A pyrolysis gas chromatography mass spectrometry study of the actinomyceteStreptomyces longisporoflavus". Biological Mass ... Boston, MA: Springer US. ISBN 1-4757-2085-8. Hopwood, edited by David A. (2009). Complex enzymes in microbial natural product ... Spectrometry. 2 (5): 261-265. doi:10.1002/bms.1200020504. Doddrell, David M.; Laue, Ernest D.; Leeper, Finian J.; Staunton, ...
*  Hydrogen isotope biogeochemistry
Conventionally, mass spectrometry, such as Gas Chromatography-Mass Spectrometry(GC-MS) and Gas Chromatography -Time Of Flight( ... ratio monitoring gas chromatography/Mass spectrometry of D/H by high temperature conversion isotope ratio mass spectrometry". ... Matthews, D. E.; Hayes, J. M. (1978-09-01). "Isotope-ratio-monitoring gas chromatography-mass spectrometry". Analytical ... and δ-Decalactone fromPrunusFruits by Gas Chromatography Combustion/Pyrolysis Isotope Ratio Mass Spectrometry (GC-C/P-IRMS)". ...
*  Dow Chemical Company
Fred McLafferty, chemist who pioneered the technique of gas chromatography-mass spectrometry; began working at Dow's organic ... A gas cloud containing methyl isocyanate and other chemicals spread to the neighborhoods near the plant where more than half a ... In the late 1990s, land on the site was sold to TransAlta which built a natural gas power plant that begun operations in 2002 ... ISBN 978-0-12-582463-7. "Bhopal gas tragedy: 27 years on, death toll still unknown". The Times of India. AK Dubey (21 June 2010 ...
*  Amphetamine
Gas chromatography-mass spectrometry (GC-MS) of amphetamine and methamphetamine with the derivatizing agent (S)-(−)- ... Goldberger BA, Cone EJ (July 1994). "Confirmatory tests for drugs in the workplace by gas chromatography-mass spectrometry". J ... assay for amphetamine and methamphetamine may produce more false positives than liquid chromatography-tandem mass spectrometry ... Kim Y, Teylan MA, Baron M, Sands A, Nairn AC, Greengard P (February 2009). "Methylphenidate-induced dendritic spine formation ...
*  Fred McLafferty
Gohlke, R. S.; McLafferty, F. W., Early gas chromatography/mass spectrometry. J. Am. Soc. Mass Spectrom. 1993, 4, (5), 367-371 ... He took a position at Dow Chemical in Midland, Michigan in 1950 and was in charge of mass spectrometry and gas chromatography ... WIth Roland Gohlke, he pioneered the technique of gas chromatography-mass spectrometry. He is also known for electron capture ... Biography portal McLafferty rearrangement Gas chromatography-mass spectrometry Electron capture dissociation "Seven Cornellians ...
*  5-Deoxyinositol
"Analysis of cyclitols in different Quercus species by gas chromatography-mass spectrometry". Journal of the Science of Food and ...
*  Methamphetamine
Goldberger BA, Cone EJ (July 1994). "Confirmatory tests for drugs in the workplace by gas chromatography-mass spectrometry". J ... Kim Y, Teylan MA, Baron M, Sands A, Nairn AC, Greengard P (February 2009). "Methylphenidate-induced dendritic spine formation ... Sudbury, Mass.: Jones and Bartlett Publishers. p. 41. ISBN 9780763744625. Schep LJ, Slaughter RJ, Beasley DM (August 2010). " ...
*  Structural scheduling of synthetic cannabinoids
Akutsu, M; Sugie, K; Saito, K (2017). "Analysis of 62 synthetic cannabinoids by gas chromatography-mass spectrometry with ...
*  Metandienone
Methods for detection in urine specimens usually involve gas chromatography-mass spectrometry. Metandienone was first described ... determination of excretion rates and gas chromatographic-mass spectrometric identification of bis-hydroxylated metabolites". J ... Mass Spectrom. 20: 2252-8, 2006. R. Baselt, Disposition of Toxic Drugs and Chemicals in Man, 8th edition, Biomedical ... Schänzer W, Geyer H, Fusshöller G, Halatcheva N, Kohler M, Parr MK, Guddat S, Thomas A, Thevis M. Mass spectrometric ...
*  Tapioca balls
"Detection of DEHP in beverages sold in Canada using gas chromatography-mass spectrometry". Bcit Environmental Health Journal. " ...
*  Chiral column chromatography
"Determination of salsolinol enantiomers by gas chromatography-mass spectrometry with cyclodextrin chiral columns". Analytica ... The principle can be also applied to the fabrication of monolithic HPLC columns or gas chromatography columns. Yingjie Li; ... Chiral column chromatography is a variant of column chromatography in which the stationary phase contains a single enantiomer ...
*  Brassinosteroid
BRs can be detected by gas chromatography mass spectrometry and bioassays. There are some bioassays that can detect BRs in the ... by Gas Chromatography-Mass Spectrometry, after Detection Using a Dwarf Rice Lamina Inclination Bioassay". Plant Physiology. 94 ... El-Meleigy EA, Gabr MF, Mohamed FH, Ismail MA (2004). "Responses to NaCl Salinity of Tomato Cultivated and Breeding Lines ...
*  Urine organic acids
"Urine Organic Acid Analysis for Inherited Metabolic Disease Using Gas Chromatography-Mass Spectrometry". Clinical Applications ... The usual method of analysis is tandem mass spectrometry. Jones, P. M.; Bennett, M. J. (2010). " ... of Mass Spectrometry. Methods in Molecular Biology. 603. pp. 423-431. doi:10.1007/978-1-60761-459-3_41. ISBN 978-1-60761-458-6 ...
*  Eldana
The gas chromatography-mass spectrometry (GC-MC) analysis showed one major volatile component. This compound was identified to ... as sugarcane treated with silicon lead to decreased larval penetration and mass gain. Additionally, pests found feeding on ...
*  Formaldehyde
Testing for formaldehyde is by blood and/or urine by gas chromatography-mass spectrometry. Other methods include infrared ... As a gas, formaldehyde is colorless and has a characteristic pungent, irritating odor. Upon condensation, the gas converts to ... A saturated water solution, of about 40% formaldehyde by volume or 37% by mass, is called "100% formalin". A small amount of ... In the residential environment, formaldehyde exposure comes from a number of different routes; formaldehyde can off-gas from ...
*  Carvacrol
"Characterization of volatile compounds from ethnic Agave alcoholic beverages by gas chromatography-mass spectrometry". Food ... It is a thick oil that sets at 20 °C to a mass of crystals of melting point 0 °C, and boiling point 236-237 °C. Oxidation with ...
*  Azacyclonol
"Determination of the terfenadine metabolite azacyclonol in human serum using gas chromatography-mass spectrometry". Journal of ... Chromatography B. 678 (2): 349-53. doi:10.1016/0378-4347(95)00561-7. PMID 8738042. Campen Jr Marcus G Van, Pogge Raymond C, ...
*  Metabolism
... using inductively coupled plasma mass spectrometry, isotope-ratio mass spectrometry, and multivariate statistics". Anal Bioanal ... For example, some prokaryotes use hydrogen sulfide as a nutrient, yet this gas is poisonous to animals. The speed of metabolism ... Modern biochemical research has been greatly aided by the development of new techniques such as chromatography, X-ray ... The mass of biochemical knowledge grew rapidly throughout the early 20th century. One of the most prolific of these modern ...
*  Creosol
Characterization of volatile compounds from ethnic Agave alcoholic beverages by gas chromatography-mass spectrometry. León- ...