A method for simultaneous determination of commonly used pesticides in mainstream cigarette smoke
A technology for cigarette mainstream smoke and pesticides, applied to measuring devices, instruments, scientific instruments, etc., to save analysis time, improve separation ability, and simplify processing procedures
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[0042] 1. Instruments and reagents: Waters Xevo TQ ultra-high performance liquid chromatography-tandem mass spectrometer (Waters, USA), equipped with electrospray ionization source (ESI); VtexMixer 230VeU oscillator (Labnet, USA); Sigma 3K15 centrifuge (Sigma, Germany) company).
[0043] Formic acid is HPLC grade (concentration is 49-51%, German Sigma company); Acetonitrile, methanol are chromatographically pure (U.S. Thermo-Fisher company); , myclobutanazole, metalaxyl, triadimefon, rice blastazol, triaconazole and thiophanate-methyl standard products were from Labor Dr. Ehrenstorfer-Schafers (chemical purity: 98.5%, Augsburg, Germany), internal standard phosphoric acid Triphenyl ester standards were obtained from Labor Dr. Ehrenstorfer-Schafers (chemical purity: 98.5%, Augsburg, Germany). Reagent packs and N-propylethylenediamine (PSA) were purchased from Agilent (USA), and water was ultrapure water. N-propyl ethylenediamine (PSA) adsorbent, end-capped carbon 18 (C18E) ads...
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