第 51 卷第 5 期Vol. 51 No. 5
2021 年 10 月Oct 2021

所属栏目:分析与测试

肟菌酯原药中1,2-二氯乙烷的气相色谱测定
蒋 锋,李楠楠,覃柳琼 (上海晓明检测技术服务有限公司,上海 201612)
摘 要:采用气相色谱法测定肟菌酯原药中1,2-二氯乙烷含量。以二氯甲烷为溶剂,选用Agilent DB-FFAP毛细柱色谱管进行分离,氢火焰离子化检测器检测、外标法定量。结果表明,方法的标准曲线线性相关系数为0.997 1,标准偏差为5.08 mg/kg,变异系数为2.52%,平均回收率为95.5%,定量限为96 mg/kg。该方法简便快速,分离效果好,准确度高,重现性好,适用于肟菌酯原药中1,2-二氯乙烷的定量测定。
关键词:1,2-二氯乙烷;肟菌酯原药;气相色谱法;外标法
中图分类号:O657.7+1  文献标识码:A  文章编号:1009-9212(2021)05-0089-04
Determination of 1,2-Dichloroethane in Technical Trifloxystrobin by GC
JIANG Feng, LI Nan-nan, QIN Liu-qing (GreenTech Laboratory Co., Ltd., Shanghai 201612, China)
Abstract:A GC-FID method was developed to determine the content of 1,2-dichloroethane in technical trifloxystrobin. In this method, the sample was dissolve in dichloromethane and separated by an Agilent DB-FFAP capillary column. A linear relation (r=0.997 1) and a satisfied precision results (SD=5.08 mg/kg, RSD=2.52%) along with an average recovery of 95.5% and the LOQ of 96 mg/kg were obtained. This method is suitable for the analysis of 1,2-dichloroethane in technical trifloxystrobin with high selectivity, accuracy and efficiency.
Key words:1,2-dichloroethane; technical trifloxystrobin; GC; external standard method
作者简介:蒋 锋(1978—),男,上海人,研究方向:农药原药与剂型的开发及质检(E-mail:feng_jiang@greentechlab.cn)。
收稿日期:2021-08-03