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农学学报 ›› 2021, Vol. 11 ›› Issue (1): 62-66.doi: 10.11923/j.issn.2095-4050.cjas2020-0162

• 农业工程/农业机械/生物技术/食品科学 • 上一篇    下一篇

‘琯溪蜜柚’中乙螨唑、啶虫脒的残留测定及套袋对残留的影响

胡彧娴()   

  1. 漳州市农业检验监测中心,福建漳州 363000
  • 收稿日期:2020-08-06 修回日期:2020-10-20 出版日期:2021-01-20 发布日期:2021-02-05
  • 作者简介:胡彧娴,女,1986年出生,福建华安人,农艺师,硕士研究生,主要从事农产品质量安全检测。通信地址:363000 福建省漳州市芗城区大通北路大同新巷6号 漳州市农业检验监测中心,Tel:0596-2606657,E-mail: 532402132@qq.com
  • 基金资助:
    2018年漳州市自然科学基金项目“琯溪蜜柚中多残留QuEChERS HPLC-MS/MS检测方法的建立及套袋控残技术研究”(ZZ2018J30)

Determination of Etoxazole and Acetamiprid Residue in Citrus maxima ‘Guanxi miyou’ and Effect of Bagging on Residues

Hu Yuxian()   

  1. Zhangzhou Agricultural Test and Inspection Centre, Zhangzhou 363000, Fujian, China
  • Received:2020-08-06 Revised:2020-10-20 Online:2021-01-20 Published:2021-02-05

摘要:

为评价乙螨唑、啶虫脒在‘琯溪蜜柚’上使用的安全性以及套袋对残留量的影响,对其残留消解动态进行研究。在蜜柚上施药进行田间试验,2种施药剂量分套袋和无套袋处理,QuEChERS结合高效液相色谱-串联质谱进行残留检测。结果表明,乙螨唑和啶虫脒在蜜柚中的残留消解动态均符合一级动力学方程,乙螨唑套袋处理的半衰期(T1/2)为5.30~5.47天,无套袋处理的T1/2为4.34~4.54天;啶虫脒套袋处理的T1/2为3.42~3.80天,无套袋处理的T1/2为3.04~3.70天。乙螨唑套袋处理的半衰期略长于无套袋处理的半衰期,而套袋对啶虫脒的半衰期影响不大。施药后65天在蜜柚中没有检出乙螨唑和啶虫脒残留。

关键词: 乙螨唑, 啶虫脒, 琯溪蜜柚, 残留, 套袋

Abstract:

To evaluate the safety of etoxazole and acetamiprid in Citrus maxima ‘Guanxi miyou’ and the effect of bagging on residues, a study on the residual degradation dynamics of etoxazole and acetamiprid was carried out. A field experiment was conducted on Citrus maxima ‘Guanxi miyou’, two dosages were sprayed in bagging and non-bagging treatments, and then the residue was determined by QuEChERS combining with HPLC-MS/MS. The results showed that the residual degradation dynamics of etoxazole and acetamiprid followed the first-order kinetic equation, the half-life (T1/2) of etoxazole was 5.30-5.47 d in the bagging treatment, and 4.34-4.54 d in the non-bagging. T1/2 of acetamiprid was 3.42-3.80 d in the bagging treatment, and 3.04-3.70 d in the non-bagging. T1/2 of etoxazole was a little longer in the bagging treatment, but the T1/2 of acetamiprid had no obvious difference between the bagging and non-bagging treatment. The residues of etoxazole and acetamiprid in Citrus maxima ‘Guanxi miyou’ were not detected on the 65th day after spraying.

Key words: Etoxazole, Acetamiprid, Citrus maxima ‘Guanxi miyou’, Residue, Bagging

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