超高效液相色谱-二极管阵列法测定水产品中环丙氨嗪残留量的研究

打开文本图片集

Research on the Determination of Cymazine Residues in Aquatic Products by Ultra-High Performance Liquid Chromatography-Diametric Array Method

YAN Yanyang， ZHENG Cheng， CAI Jiaqi， XU Binhui， NI Weijun （Wenzhou Quality and Technology Testing Research Institution，Wenzhou 325oo0， China

Abstract： Using ultra-high performance liquid chromatography-diode array method to detect residual levels of cyclopropazine in aquatic products. The extraction was carried out with a solution of trichloroacetic acidacetonitrile，followed by purification on an MCX solid-phase extraction column and quantitative analysis with an ultra-high performance liquid chromatograph.The results showed that cyromazine had a good linear relationship R⩾0.999 ）in the concentration range of 0.05μg⋅mL-1 to 2.00μg⋅mL-1 . At three spiked levels of 10， 20μg⋅kg-1 and 100μg⋅kg-1. ，the average recovery rates were 86.5% to 95.9% ，and the relative standard deviationswere all less than 4% . This technique is characterized by high sensitivity，simplicity of operation，and good repeatability，making it suitable for the determination of cyromazine residues in aquatic products.

Keywords： ultra-high performance liquid chromatography-diode array detection; aquatic products; cyromazine： residues

环丙氨嗪（Cyromazine）的化学性质稳定，具有较强的亲水性，是一种含氮杂环类亲水性化合物，通过干扰昆虫的正常生理代谢，抑制昆虫的生长发育，从而达到杀灭昆虫的效果[1-2]。（剩余3851字）