Simultaneous quantitation of seven pyrethroid metabolites in human urine by capillary gas chromatography-mass spectrometry

2012 ◽  
Vol 36 (4) ◽  
pp. 773-780 ◽  
Author(s):  
Lin Tao ◽  
Mei Chen ◽  
Erin Collins ◽  
Chensheng Lu
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Human Urine ◽  
Capillary Gas Chromatography ◽  
Gas Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry ◽  
Pyrethroid Metabolites

Capillary Gas Chromatography–Mass Spectrometry Quantitative Determination of Hydroxytyrosol and Tyrosol in Human Urine after Olive Oil Intake

2001 ◽  
Vol 294 (1) ◽  
pp. 63-72 ◽  
Author(s):  
Elisabet Miró-Casas ◽  
Magı́ Farré Albaladejo ◽  
Maria-Isabel Covas ◽  
Jordi Ortuño Rodriguez ◽  
Ester Menoyo Colomer ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Quantitative Determination ◽  
Olive Oil ◽  
Human Urine ◽  
Capillary Gas Chromatography ◽  
Gas Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry

Screening and quantification of hypnotic sedatives in serum by capillary gas chromatography with a nitrogen-phosphorus detector, and confirmation by capillary gas chromatography-mass spectrometry.

1986 ◽  
Vol 32 (2) ◽  
pp. 325-328 ◽  
Author(s):  
V A Soo ◽  
R J Bergert ◽  
D G Deutsch
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Capillary Gas Chromatography ◽  
Gas Chromatography Mass Spectrometry ◽  
Detector Response ◽  
Capillary Gc ◽  
Chromatography Mass Spectrometry ◽  
Nitrogen Phosphorus Detector ◽  
Sedative Drugs ◽  
Nitrogen Phosphorus

Abstract We describe a quantitative screen for hypnotic-sedative drugs in which we use capillary gas chromatography with a nitrogen-phosphorus detector (GC/NPD) as the primary method and capillary gas chromatography-mass spectrometry (GC-MS) for confirmation. GC retention times of the acid-extracted underivatized drugs were stable (CVs less than 1%), and the detector response varied linearly over a 20-fold concentration range with a mean correlation coefficient for 11 drugs of 0.989. The limits of detection were satisfactory (0.5 mg/L in a 0.5-mL serum sample and 1-microL injection volume), as were precision (average CV 5.2% within day, 6.4% between day). The complementary use of capillary GC-MS not only unambiguously confirms presumptive peaks identified by GC, but also prevents reports of false positives and identifies compounds not included in the quantitative GC screen that may be listed in the GC-MS library.

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