CAJ | 학술논문

用乙腈、水混合液（体积比1：1）提取，提取液经无水硫酸镁和PSA吸附剂处理，经0．45μm滤膜过滤后，以乙腈／水（含5mmol／L乙酸铵）溶液作流动相，流速200μl／min，采用高效液相色谱-串联质谱法同时测定了烟草中6种有机氮的农药残留量。检测限为0．01～0．10μg／kg，回收率为70％-107％，相对标准偏差不大于8．92％。
용을정、수혼합액（체적비1：1）제취，제취액경무수류산미화PSA흡부제처리，경0．45μm려막과려후，이을정／수（함5mmol／L을산안）용액작류동상，류속200μl／min，채용고효액상색보-천련질보법동시측정료연초중6충유궤담적농약잔류량。검측한위0．01～0．10μg／kg，회수솔위70％-107％，상대표준편차불대우8．92％。
A method based on liquid chromatography tandem mass spectrometry was developed for simultaneously determining the residues of six organic nitrogen pesticides in tobacco. The samples were extracted with 50% （v/v） acetonitrile water solutio and the extracts were cleaned up with primary secondary amine （PSA） adsorbent and magnesium sulfate, then filtrated by 0. 45 μm filter membrane, and then analyzed by LC - MS/MS using water containing 0. 05% acetic acid and acetonitrile as a mobile phase at the flow rate of 200 μl/minute. The detection limit and the organic nitrogen pesticides recoveries rate were 0.01 to 0. 10 μg/kg and 70% to107% respectively, with relative standard division below 8.92%.