您好，欢迎访问中国水产科学研究院 机构知识库！
中国水产科学研究院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Determination of pendimethalin in water, sediment, and Procambarus clarkii by high performance liquid chromatography-triple quadrupole mass spectrometry

文献类型： 外文期刊

作者： Yang, Qiuhong 1 ; Ai, Xiaohui 1 ; Li, Siqi 3 ; Liu, Huan 2 ; Liu, Yongtao 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Wuhan 430223, Hubei, Peoples R China

2.Chinese Acad Fishery Sci, Minist Agr, Key Lab Control Qual & Safety Aquat Prod, Beijing 100141, Peoples R China

3.Huazhong Agr Univ, Coll Fisheries, Wuhan 430070, Hubei, Peoples R China

关键词： High performance liquid chromatography-triple quadrupole mass spectrometry; Pendimethalin; Water; Sediment; Rice-Procambarus clarkii-integrated planting

期刊名称：ENVIRONMENTAL MONITORING AND ASSESSMENT （ 影响因子：2.513； 五年影响因子：2.871 ）

ISSN： 0167-6369

年卷期： 2019 年 191 卷 10 期

页码：

收录情况： SCI

摘要： We established a high-performance liquid chromatography-triple quadrupole mass spectrometry method for the analysis of pendimethalin residues in water, sediments, and Procambarus clarkii (Louisiana crayfish) tissues. Water samples were concentrated on a HLB solid-phase extraction column and eluted with dichloromethane and acetone (1:1). After drying under a stream of nitrogen gas, the sample volume was adjusted to 1 mL with the mobile phase solvent methanol/water/acetic acid (8:20:0.1). Pendimethalin was extracted with ethyl acetate containing 0.1% acetic acid, after rotary evaporation to dryness at 35 degrees C, the residue was dissolved in mobile phase solvent, purified by a neutral alumina column and graphitized carbon black powder (0.1 g). The mass characterization was conducted in positive ion mode, and the corresponding ions were detected in multi-reaction monitoring mode. The linear equations were y = 1 x 10(6)x + 14275, at pendimethalin levels of 0.05-20 mu g L-1 and y = 691029 x - 414368 for 20-200 mu g L-1. The detection limits of pendimethalin in water, sediments, and P. clarkii tissues were 1.0 x 10(-4)mu g L-1 , 5.0 x 10(-3)mu g kg (-1) and 5.0 x 10(-3) mu g kg (-1), respectively. The spiked recoveries ranged from 81.6 to 106.3%, and the relative standard deviations ranged from 4.58 to 13.6% (n = 6). The method provided an efficient and low-cost extraction and purification procedure that enabled a sensitive determination of pendimethalin in water as well as complex matrices.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国水产科学研究院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台