浙江农业学报 ›› 2018, Vol. 30 ›› Issue (8): 1376-1381.DOI: 10.3969/j.issn.1004-1524.2018.08.15

• 植物保护 • 上一篇    下一篇

高效氯氟氰菊酯和氯氰菊酯在苹果中的残留降解动态及其去除方法

虞游毅1, 杨璐2,*, 廖享2, 程平2, 武胜利1, 李宏2   

  1. 1.新疆师范大学 地理科学与旅游学院,新疆 乌鲁木齐 830054;
    2.新疆林业科学院,新疆 乌鲁木齐 830000
  • 收稿日期:2017-10-16 出版日期:2018-08-25 发布日期:2018-08-28
  • 通讯作者: 杨璐,E-mail: 1528357491@qq.com
  • 作者简介:虞游毅(1991—),女,四川乐山人,硕士,主要从事干旱区环境演变及林果产品品质分析。E-mail: yyyyuyouyi@163.com
  • 基金资助:
    自治区公益性科研院所基本科研业务经费(KY201521)

Residual degradation dynamics of lambda-cyhalothrin and cypermethrin in apple and its removal method

YU Youyi1, YANG Lu2,*, LIAO Xiang2, CHENG Ping2, WU Shengli1, LI Hong2   

  1. 1. College of Geography and Tourism, Xinjiang Normal University, Urumqi, 830054, China;
    2. Xinjiang Academy of Forestry, Urumqi 830000, China
  • Received:2017-10-16 Online:2018-08-25 Published:2018-08-28

摘要: 采用模拟实验与气相色谱法,研究不同储藏条件下苹果中高效氯氟氰菊酯和氯氰菊酯的降解动态,以及家庭日常清洗方式对二者的去除效果。结果表明,在实验条件下,苹果中高效氯氟氰菊酯和氯氰菊酯主要残留于果皮中。二者的降解动态均符合一级动力学方程,前期降解较快,后期渐趋稳定。室温[(25±2)℃]或冷藏(4 ℃)条件下,苹果中高效氯氟氰菊酯和氯氰菊酯的半衰期均以果皮最短。用配制的洗洁精溶液、食盐溶液、食醋溶液、小苏打溶液或清水清洗苹果,均能不同程度地去除苹果高效氯氟氰菊酯和氯氰菊酯残留。为了避免洗洁精清洗造成二次污染,建议选择10%(质量分数)食盐水溶液清洗,效果较好。

关键词: 农药残留, 农产品安全, 降解动态

Abstract: In the present study, laboratory simulation test and gas chromatography were used to investigate the degradation dynamics of lambda-cyhalothrin and cypermethrin in apple, and to explore suitable cleaning method for domestic application. It was shown that the residues of lambda-cyhalothrin and cypermethrin mainly remained in pericarp. Their degradation dynamics both fit the first order kinetics, and the degradation rate was faster in the early period and decreased later until stable. Under both room temperature [(25±2) ℃]and 4 ℃, the half-life of lambda-cyhalothrin and cypermethrin was the shortest in pericarp. It was feasible to remove lambda-cyhalothrin and cypermethrin by cleaning with detergent solution, salt solution, acetic acid solution, baking soda solution or tap water, but the removal efficiency varied. In order to avoid secondary pollution of detergent, it was suggested to wash apple with 10% NaCl solution to remove lambda-cyhalothrin and cypermethrin.

Key words: pesticide residue, agricultural product safety, degradation dynamics

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