黄瓜中醚菌酯的残留及风险评估

刘聪云; 王有成; 万凯; 黄健祥; 王富华

黄瓜中醚菌酯的残留及风险评估

刘聪云^1,2,
王有成³,
万凯^1,2,
黄健祥^1,2,
王富华^1,2,

1.
广东省农业科学院农产品质量安全与标准研究中心,广州 510640
2.
农业部蔬菜水果质量监督检验测试中心(广州),广州 510640
3.
华中农业大学资源与环境学院,武汉 430000

基金项目:

广东省农业科学院院长基金(201219).

计量
- 文章访问数: 1732
- HTML全文浏览量: 33
- PDF下载量: 625
- 被引次数: 0
出版历程
- 收稿日期: 2012-08-28
- 修回日期: 2012-10-10

Residue and risk assessment of kresoxim-methyl in cucumber under field conditions

1.
Center for Quality Safety and Standard Research of Agricultural Products, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
2.
Supervision and Testing Center for Vegetable and Fruit Quality, Ministry of Agriculture, Guangzhou 510640, China
3.
College of Resources and Environment, Huazhong Agricultural University, Wuhan 430000, China

摘要

摘要: 建立了醚菌酯在黄瓜中的残留分析方法,并在广州和天津进行了30%醚菌酯可湿性粉剂在黄瓜上残留的田间试验,研究了醚菌酯在黄瓜上的消解动态和最终残留,采用风险商值法对黄瓜中醚菌酯可能产生的膳食风险进行了评估。黄瓜样本用乙腈提取,高效液相色谱-串联质谱法(HPLC-MS/MS)检测。在添加水平为0.01、0.05和0.5 mg/kg时,平均添加回收率在91%～95%之间,相对标准偏差为3.74%～9.99%,检出限(LOD)为0.001 mg/kg,定量限(LOQ)为0.01 mg/kg。田间试验结果表明,醚菌酯在广州和天津黄瓜中的半衰期分别为1.5 d和2.1 d,消解迅速,施药3 d后最终残留量为0.08～0.23 mg/kg,施药5 d后最终残留量均低于LOQ值。风险评估结果表明,施药后3 d时黄瓜中醚菌酯的残留风险商值均远远低于1。表明喷施30%醚菌酯可湿性粉剂防治黄瓜白粉病,按照推荐剂量使用对人体健康是安全的。
- 醚菌酯 /
- 黄瓜 /
- 残留 /
- 风险评估
Abstract: A rapid and effective method was developed for determination of kresoxim-methyl residue in cucumber.Field trials were designed to evaluate the dissipation and residue of kresoxim-methyl in cucumber at Guangzhou and Tianjin.The dietary exposure and risk assessment were also conducted by using the calculation of risk quotient(RQ).The samples were extracted by acetonitrile and detected by HPLC-MS/MS.The results showed good average recoveries of 91%-95% with relative standard deviations of 3.74%-9.99% at the spiked level of 0.01,0.05 and 0.5 mg/kg.The limit of detection(LOD) was 0.001 mg/kg and the limit of quantification(LOQ) was 0.01 mg/kg.The results were found that the half lives of kresoxim-methly in cucumber of Guangzhou and Tianjin were 1.5 and 2.1 days,respectively,and the terminal residue was 0.08-0.23 mg/kg 3 days after application,and lower than LOQ value 5 days after application,the RQ of kresoxim-methyl were far below 1.It predicted that it was safe for human being when using this pesticide to control powdery mildew on cucumber.
- kresoxim-methyl /
- cucumber /
- residue /
- risk assessment

HTML全文

参考文献(14)

徐波勇,门振,郭逍,等.甲氧基丙烯酸酯类杀菌剂-醚菌酯 //第五届新农药创制交流会论文集,北京:中国化工学会,2003:286-287. XU Boyong,MEN Zhen,GUO Xiao,et al. Kresoxim-methyl,a kinds of strobilurin fungicide //The Fifth Exchange Meeting of New Pesticide Discovery.Beijing:Chemical Industry and Engineering Society of China,2003,286-287.(in Chinese)

吕国成.60%醚菌酯水分散粒剂防治黄瓜白粉病田间药效试验[J].广西植保,2011,24(4):20-22. LYU Guocheng.Field efficacy trials of kresoxim-methyl WDG(60%) against cucumber powdery mildew[J].Guangxi Plant Prot,2011,24(4):20-22.(in Chinese)

吴宪,李建中,胡继业,等.GC法检测醚菌酯在黄瓜中的残留[J].环境化学,2005,25(4):485-485. WU Xian,LI Jianzhong,HU Jiye,et al.Detection of kresoxim-methyl in cucumber by GC[J].Env Chem,2005,25(4):485-485(in Chinese)

陈长龙,李建中,吴宪,等.气相色谱法测定醚菌酯在黄瓜和土壤中的残留量[J].农药学学报,2006,8(2):191-194. CHEN Changlong,LI Jianzhong,WU Xian, et al.Determination of kresoxim-methyl residues in cucumber and soil by capillary gas chromatography[J].Chin J Pestic Sci,2006,8(2):191-194.(in Chinese)

章虎,叶蓓蓓,王祥云,等.气相色谱法测定番茄、黄瓜中醚菌酯和肟菌酯残留[J].化学通报,2008(6):465-468. ZHANG Hu,YE Beibei,WANG Xiangyun,et al. Determination of kresoxim-methyl and trifloxystrobin residues in tomato and cucumber by gas chromatography[J].Chemistry,2008(6):465-468.(in Chinese)

周凤霞,陈存.气相色谱法同时测定蔬菜中醚菌酯和肟菌酯残留量的方法研究[J].农业环境与发展,2009(4):81-84. ZHOU Fengxia,CHEN Cun.Determination of kresoxim-methyl and trifloxystrobin residues in vegetables[J]. Agro-Env Dev,2009(4):81-84.(in Chinese)

DE MELO ABREU S,CABONI P,CABRAS P,et al.Validation and global uncertainty of a liquid chromatographic with diode array detection method for the screening of azoxystrobin,kresoxim-methyl,trifloxystrobin,famoxadone,pyraclostrobin and fenamidone in grapes and wine[J].Analytica Chimica Acta,2006,573-574:291-297.

NAVALÁ A,PRIETO A,ARAUJO L,et al.Determination of pyrimethanil and kresoxim-methyl in green groceries by headspace solid-phase microextraction and gas chromatography-mass spectrometry[J]. J Chromatogra A,2002,975(2):355-360.

NAVALÓN A,PRIETO A,ARAUJO L,et al.Determination of pyrimethanil and kresoxim-methyl in soils by headspace solid-phase microextraction and gas chromatography-mass spectrometry[J].Anal Bioanal Chem,2004,379(7-8):1100-1105.

王云凤,葛宝坤,高建会,等.液相色谱-质谱法测定果蔬中八种甲氧基丙烯酸酯类杀菌剂残留量[J].食品研究与开发,2009,30(4):130-132 WANG Yunfeng,GE Baokun,GAO Jianhui,et al.Determination of 8 strobilurins in fruits and vegetables by liquid chromatography-mass spectrometer[J].Food Res Develop,2009,30(4):130-132(in Chinese)

张玉婷,郭永泽,邵辉,等.50%醚菌酯水分散粒剂在苹果及土壤中的残留动态研究[J].农药,2008,47(9):668-669. ZHANG Yuting,GUO Yongze,SHAO Hui,et al.Residue dynamics of kresoxim-methyl in apple and soil[J].Agrochemicals,2008,47(9):668-669.(in Chinese)

李辉,张玉婷,郭永泽,等.醚菌酯50%干悬浮剂在草莓及土壤中的残留动态研究[J].安徽农业科学,2009,37(20):9596-9597. LI Hui,ZHANG Yuting,GUO Yongze,et al. Residual dynamics of dry 50%kresoxim-methyl suspending agent in strawberry and soil[J].Anhui Agric Sci,2009,37(20):9596-9597.(in Chinese)

张志恒,李红叶,吴珉,等,百菌清、腈菌唑和吡唑醚菌酯在草莓中的残留及其风险评估[J].农药学学报,2009,11(4):449-455. ZHANG Zhiheng,LI Hongye,WU Min,et al.Residue and risk assessment of chlorothalonil,myclobutanil and pyraclostrobin in greenhouse strawberry[J].Chin J Pestic Sci,2009,11(4):449- 455.(in Chinese)

王陇德.中国居民营养与健康状况调查报告之一:综合报告[M].北京:人民卫生出版社,2005. WANG Longde.Investigation Report on Nutrition and Health of Chinese People:Summary Report[M].Beijing:People's Medical Publishing House,2005.(in Chinese)

施引文献

资源附件(0)

访问统计