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Simultaneous detection and quantitation of highly water-soluble herbicides in serum using ion-pair liquid chromatography-tandem mass spectrometry.
We report the simultaneous screening of highly polar, water-soluble, and less-volatile herbicides, including glyphosate, glufosinate, paraquat, and diquat, in serum using liquid chromatography-massExpand
Determination of nimetazepam and 7-aminonimetazepam in human urine by using liquid chromatography-tandem mass spectrometry.
Determination of metabolites of popular drugs of abuse, including nimetazepam and nitrazepam, in urine by using liquid chromatography/mass spectrometry and presence of 7-aminonimetazpeam in the urine was an indicator of the subject being a probable abuser of nimetzepam. Expand
Artifacts in the GC-MS profiling of underivatized methamphetamine hydrochloride.
When underivatized methamphetamine hydrochloride (MA.HCl) in methanol is subjected to the instant gas chromatographic-mass spectrometric (GC-MS) profiling with old inlet liners at temperatures aboveExpand