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The article presents a study on the use of the triple quadrople gas chromatography (GC)-mass spectrometry (MS)-MS in the analysis of multipesticide residues in vegetable matrix. The study describes the method setup, linearity and precision of the GC-MS-MS method. It concludes that the method demonstrates good sensitivity and linear calibration range and its detection limits are below the required limits of the regulated method.

The article provides information on the methods use in the determination of estradiol in plasma with negative chemical ionization mode. It explains that the gas chromatography-mass spectrometry (GC-MS) method is capable of detecting femtogram levels in comparison with low pictogram levels of liquid chromatography-tandem mass spectrometry method. It recommends further assay method to include other estrogens and androgens in one single GC-MS/MS analysis.