阿维菌素4种剂型中壬基酚聚氧乙烯醚与壬基酚的含量及其从外包装中的迁移  

Distribution of nonylphenol ethoxylates and nonylphenol in 4 formulations of abamectin and their migration from packing

作　　者：罗惠莉[1] 贺晓美 周静如 张舸帆 LUO Huili;HE Xiaomei;ZHOU Jingru;ZHANG Gefan(College of Resources and Environment,Hunan Agricultural University/Engineering Technology Center of Livestock Breeding and Planting Pollution Control in Hunan Environmental Protection,Changsha 410128,China)

机构地区：[1]湖南农业大学资源环境学院,湖南省环境保护畜禽养殖与农业种植污染控制工程技术中心,长沙410128

出　　处：《农药学学报》2021年第3期569-577,共9页Chinese Journal of Pesticide Science

基　　金：第二次全国污染源普查专项项目(CLPSP18GZ02ZC95);湖南省重点研发计划项目(2016SK2061).

摘　　要：通过高效液相色谱-荧光法对阿维菌素类农药中壬基酚聚氧乙烯醚(NPEOs)及4-n-壬基酚(以下简称NP)进行检测,分析乳油(EC)、水乳剂(EW)、悬浮剂(SC)和微乳剂(ME)4种剂型中NPEOs和NP含量的分布特征。以甲醇为油基模拟物浸泡样品外包装材料(塑料),对其中NPEOs和NP的溶出迁移进行检测,并对制剂中NPEOs和NP进行源解析。结果表明:在4种类型制剂中,NPEOs检出率为60.47%,NP检出率为62.79%,两者均检出的占51.16%。复配制剂中NPEOs及NP检出率高于单剂。4种剂型中NPEOs和NP的检出量均值及中位数从高到低依次为:EC>EW>ME>SC。NPEOs和NP最高含量均出现在EC中,分别为6.83%和8.41%。EC制剂中NPEOs多于NP,而EW制剂中两者使用相当。2 h NPEOs和NP的迁移量分别为0.16~49.34和0.19~18.05μg/c m 2,30 d的迁移量分别为0.76~66.48和2.84~137.79μg/cm^(2)。试验初期,NPEOs溶出迁移相对NP更易趋于稳定,而至15 d时NPEOs和NP的迁移量接近,分别占30 d迁移量的46.64%~100.82%和46.89%~102.03%。外包装塑料中NP贡献率高达2.568%,而NPEOs贡献率最大为0.241%,30d NP贡献率是NPEOs的1.66~107.51倍,并且塑料袋中NP贡献率比塑料瓶中的大。农药外包装塑料中NP的使用量相对于NPEOs更多,生产过程中的添加仍是制剂中NPEOs和NP主要来源。The detection of nonylphenol ethoxylates(NPEOs)and 4-n-nonylphenol(NP)in abamectin pesticide formulations was conducted using high performance liquid chromatography-fluorescence method,and distribution characteristics of NPEOs and NP in 4 formulations:emulsifiable concentrate(EC),microemulsion(ME),emulsion in water(EW),suspension concentrate(SC)were analyzed.Solution migrations of NPEOs and NP from packing material(plastic)were detected by soaking the samples with methanol as an oil-based analog,and the sources of NPEOs and NP in pesticide formulations were analyzed.Results showed that the detection rate of NPEOs,NP,and both in the 4 formulations was 60.47%,62.79%,51.16%,respectively.The detection of NPEOs and NP in complexation agent was higher than that in a single agent.The mean and median value of NPEOs and NP in 4 formulations from high to low both were EC>EW>ME>SC.Among them,EC contained 6.83%of NPEOs and 8.41%of NP,both were the highest in the tested samples.Component of NPEOs was more than that of NP in EC,while both were used equally in EW.2 h migrations of NPEOs and NP were 0.16-49.34 and 0.19-18.05μg/cm^(2),respectively,while the values after 30 days were 0.76-66.48 and 2.84-137.79μg/cm^(2),respectively.At the beginning of the experiment,migration of NPEOs was more stable than NP,but migration of the both were close at 15 d,which ranged from 46.64%-100.82%and 46.89%-102.03%of 30 d migrations.The highest contribution of NP from packing plastic was 2.568%,while it was 0.241%for NPEOs.30 d contribution of NP was 1.66-107.51 times to that of NPEOs,and the contribution of NP from plastic bags was higher than that from plastic bottles.The results demonstrated that NP was used more often than NPEOs in the packing of pesticide,but additives during production was the main source of NPEOs and NP in pesticide.

关 键 词：阿维菌素 壬基酚聚氧乙烯醚 壬基酚 塑料外包装 迁移 

分 类 号：X592[环境科学与工程—环境工程] TQ450.6[化学工程—农药化工]