However, QqQ provided better sensitivity in egg working in selected reaction monitoring (SRM). The QqQ and IT performance was similar in cucumber and solvent. The influence of the matrix nature on the analysis of low concentrations of each analyzer was also evaluated. Linearity (expressed as determination coefficient, R(2)) in the range 10-150 microg L(-1) was adequate in both systems however, better R(2) values were obtained with the QqQ analyzer in high and low concentration ranges (1-50 and 1-750 microg L(-1), respectively). MS data and intra-day precision were similar in QqQ and IT, whereas inter-day precision was significantly worse in QqQ. The target compounds were analyzed in solvent and in two representative food matrices such as cucumber (high water content) and egg (high fat content). Mass spectrometric data, performance characteristics (linearity, intra-day and inter-day precision) and the influence of the matrix nature on the analysis of low concentrations were compared. For this purpose, 19 pesticides, including organochlorine and organophophorus pesticides and pyrethroids, were analyzed in both systems. It has actually been a long time since I played the game, I made the post because my friend just got it and reminded me of this quest. The large volume injection (LVI) technique together with programmed-temperature vaporization (PTV) was applied. In the present work, the performance of GC coupled to these two analyzers (GC-QqQ-MS/MS and GC-IT-MS/MS) was studied and compared for pesticide residue analysis as well as its application in food analysis. QqQ and IT are commonly interfaced to GC however, there has not been any direct comparison between them in pesticide residue analysis so far. MS/MS can be conceived in two ways: tandem in space (e.g.

Earth gains mass from the impacts of meteoroids and comets and loses mass from the escape of gases into space. It gains or loses energy through incoming solar radiation, thermal radiation to space, and gravitational forces exerted by the sun, moon, and planets. Gas chromatography coupled to tandem mass spectrometry (GC-MS/MS) is one of the most powerful techniques in pesticide residue analysis. Earth exchanges mass and energy with the rest of the solar system.

Through time and space gas