CAJ | 학술논문

建立分散液相微萃取-气相色谱法检测苹果汁中毒死蜱等6种有机磷农药残留。考察影响分散液相微萃取的因素，其中包括萃取剂、分散剂、萃取时间、盐浓度等。最终选定萃取条件为5 ml样品(苹果汁∶纯净水=1∶1)中加入1 ml分散剂丙酮(其中含有16μl萃取剂氯苯)，轻轻震荡混匀后，在4000 r/min的条件下离心10 min，析出萃取溶剂氯苯后直接进入气相色谱仪进行分析。该方法操作简便，富集倍数高，灵敏度高，对环境无污染，可满足苹果汁中有机磷农药残留的快速测定。
건립분산액상미췌취-기상색보법검측평과즙중독사비등6충유궤린농약잔류。고찰영향분산액상미췌취적인소，기중포괄췌취제、분산제、췌취시간、염농도등。최종선정췌취조건위5 ml양품(평과즙∶순정수=1∶1)중가입1 ml분산제병동(기중함유16μl췌취제록분)，경경진탕혼균후，재4000 r/min적조건하리심10 min，석출췌취용제록분후직접진입기상색보의진행분석。해방법조작간편，부집배수고，령민도고，대배경무오염，가만족평과즙중유궤린농약잔류적쾌속측정。
In this study, a new method for the determination of six kinds of organophosphorus pesticides (OPPs) in apple juice was developed by using dispersive liquid–liquid microextraction (DLLME) and gas chromatography–flame photometric detection (GC-FPD).Some important parameters,such as dispersant, extraction solvent, extraction time, salinity were investigated. Under the optimum extraction conditions(1ml acetone as dispersant with 16μL chlorobenzene as extraction solvent into the 5 ml sample; shaking gently ;centrifugation for 10 min at 4000 r), the performance of the proposed method was evaluated. The proposed method has the advantage of being quick and easy to operate, having high-enrichment and high-sensitivity, and protecting environment. It is good enough for fast analysis organophosphorus pesticides in apple juice.