CAJ | 학술논문

目的：建立快速检测牛奶中双甲脒的气相色谱法。方法试样中的双甲脒经酸水解成2,4-二甲基苯胺,碱化后用正己烷提取,七氟丁酸酐衍生,气相色谱-电子捕获检测器检测,外标法定量。结果该方法检测双甲脒回收率范围在83.6%～97.4%之间,相对标准偏差在1.02%～4.23%之间,最低检出限为5μg/kg。结论该方法简单、快速、分离度好,适用于牛奶中双甲脒含量的测定。
목적：건립쾌속검측우내중쌍갑미적기상색보법。방법시양중적쌍갑미경산수해성2,4-이갑기분알,감화후용정기완제취,칠불정산항연생,기상색보-전자포획검측기검측,외표법정량。결과해방법검측쌍갑미회수솔범위재83.6%～97.4%지간,상대표준편차재1.02%～4.23%지간,최저검출한위5μg/kg。결론해방법간단、쾌속、분리도호,괄용우우내중쌍갑미함량적측정。
Objective To develop a method for rapid determination of amitraz content in milk by gas chromatography (GC).Methods The amitraz in a sample was hydrolyzed into 2,4-dimethylaniline by acid, and reacted with alkalinity. The resultant was extracted by N-hexane, and then derived by heptafluorobutyric anhydride. The derivatives were detected and quantified by GC with electron capture detector and external standard method, respectively.Results The recoveries of amitraz were 83.6%~97.4%, the relative standard deviation were 1.02%~4.23%, and the detection limit was 5μg/kg. Conclusion This method is simple, rapid, and has a good separating degree, and it is suitable for the determination of amitrazinmilk.