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有机氮和有机磷农药混合多残留分析方法的研究 被引量:2

METHOD FOR WULTIRFSIDUF DFTFRMINATION OF ORGANONITROGEN AND ORGANOPHOSPHORUS PFSTICIDFS.
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摘要 本文采用气相色谱填充柱,研究测定水果、蔬菜和粮食中19种有机氮和有机磷农药的混合多残留分析方法。样品用丙酮—水振荡或组织捣碎提取,二氯甲烷萃取,凝结法净化,使用Sigma2和8500型带有NPD的气谱仪测定。气相色谱柱长1m,内径0.2cm,填充5%OV—17/Chrom Q80—100目,该柱在恒温条件下,一次能将19种有机氮和有机磷农药完全分离。通过对相对保留时间和峰值重现性的测定,以及方法回收率、添加回收率、最低检测限的试验,证实方法的准确可靠,经过应用,确认方法的可行性。其相对保留时间和峰值重现性的变异系数分别为0.00—1.19%和1.30—10.13%,添加回收率为85.16—100.30%,变异系数为0.60—8.43%;方法最小检测量为0.58×10^(-11)—6.10×10^(-10)g最低检测浓度为0.0004—0.0610ppm。 A gas chromatographic method without derivatization was established for the residue analysis of 19 organonitrogen and organophosphorus pesticides in cereals, fruit and vegetable. The samples were blended or shaken with acetone-water for extraction. The extracts were partitioned with diehlormethane. The organic phases were cleaned by coagulation. The residues were determined by gas chromatography rquipped with NPD and a 1m long and 0.2 cm id glass column packed with 5% OV-17on chrom Q (80 - 100mcsh). All of the 19 organonitrogcn and organophosphorus pesticides were separated under constant temperature. The experiment showed that the method described above was applicable to the multircsiduc analysis of 19 pesticides in cereals, fruit and vegetable. The variant cocflicicnt for relative retention times was 0-1.19% and that of peak height reproducible was 1.30-7.9% The method has satisfactory recoveries (85.16-103.3%) and good variant coefficient (0.60-8.43%). The minimum tectability was 0.58 × 10-11 - 6.10 ×10-10 g , and minimum detectability concentration was 0.0004 -0.0610ppm.
出处 《农村生态环境》 CSCD 1991年第2期58-63,54,共7页 Rural Eco-Environment
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参考文献3

  • 1黄士忠,张俊亭,李治祥,邓平,吴加伦,樊德方.有机氮农药多残留分析方法的研究[J].环境科学学报,1989,9(2):225-233. 被引量:7
  • 2楼小华,梁天锡.59种农药残留量的毛细管气相色谱系统分析[J]环境化学,1989(03).
  • 3张乔,李伟格,黄士忠,翟延路,李治祥,宁安荣.有机磷农药的多残留气相色谱分析方法[J]环境科学学报,1988(03).

二级参考文献8

  • 1黄士忠,农药科学与管理,1989年,1卷,21页
  • 2黄士忠,环境化学,1988年,7卷,2期,37页
  • 3张乔,环境科学,1988年,9卷,1期,47页
  • 4黄士忠,农业环境保护,1988年,7卷,4期,41页
  • 5钱传范,环境科学,1986年,6卷,1期,68页
  • 6团体著者,农药残留气相色谱法,1986年
  • 7王琴孙,农药,1985年,5卷,9页
  • 8樊德方,农药残留量分析与检测,1982年

共引文献6

同被引文献3

  • 1李伟格,张乔,季玉玲,王圣田.米、土、水、饮料和蔬菜中12种有机磷农药残留的快速测试方法研究[J]农村生态环境,1988(02).
  • 2刘淑芬.水中马拉硫磷及其马拉氧磷的气相色谱分析[J]环境化学,1986(01).
  • 3沈在忠,钱传范.20种农药在作物中多残留分析方法的研究[J].环境科学学报,1991,11(2):223-230. 被引量:7

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