[1]赵方方,张月,吕岱竹,等.苯醚甲环唑在芒果中的消解动态[J].江苏农业学报,2016,(05):1177-1181.[doi:10.3969/j.issn.1000-4440.2016.05.035]
 ZHAO Fang-fang,ZHANG Yue,LYU Dai-zhu,et al.Degradation dynamics of difenoconazole in mango[J].,2016,(05):1177-1181.[doi:10.3969/j.issn.1000-4440.2016.05.035]
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苯醚甲环唑在芒果中的消解动态()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2016年05期
页码:
1177-1181
栏目:
加工贮藏·质量安全
出版日期:
2016-11-22

文章信息/Info

Title:
Degradation dynamics of difenoconazole in mango
作者:
赵方方张月吕岱竹谢德芳
中国热带农业科学院分析测试中心/海南省热带果蔬产品质量安全重点实验室, 海南海口571101
Author(s):
ZHAO Fang-fangZHANG YueLYU Dai-zhuXIE De-fang
Analysis & Testing Center, Chinese Academy of Tropical Agricultural Sciences/Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruits and Vegetables, Haikou 571101,China
关键词:
苯醚甲环唑芒果超高效液相色谱-串联质谱消解残留
Keywords:
difenoconazolemangoUPLC-MS/MSdegradationresidue
分类号:
S667.7
DOI:
10.3969/j.issn.1000-4440.2016.05.035
文献标志码:
A
摘要:
为建立苯醚甲环唑在芒果全果和果肉中的残留分析方法,分析测定了其在云南、海南两地芒果中的残留动态。采用UPLC-MS/MS检测,建立苯醚甲环唑在芒果全果和果肉中的残留分析方法,测定苯醚甲环唑在云南、海南两地芒果中的残留动态及最终残留。选择乙腈作为提取剂,优化去簇电压为125.9 V,碰撞能量为32.98 V。在0.010~0.100 mg/kg添加范围内,苯醚甲环唑在芒果全果和果肉中的平均回收率为79%~95%,变异系数为4.4%~8.6%,方法检出限为0.001 mg/kg,定量限为0.005 mg/kg。苯醚甲环唑在云南和海南两地芒果中的半衰期分别为13.2 d、10.6 d,施药后21 d、28 d、35 d收获的芒果中苯醚甲环唑残留量均低于0.070 mg/kg,低于国家标准限定的残留值。该方法准确度高,灵敏度高,线性良好,可以用于芒果上苯醚甲环唑的残留检测。
Abstract:
A method in which acetonitrile was selected as extraction agent, declustering potential voltage was optimized to 125.9V, and collision energy was set at 32.98 V, was developed for the determination of difenoconazole residue in mango fruit and flesh by UPLC-MS/MS. Difenoconazole residues in the mango from Yunnan and Hainan were detected. The recoveries of difenoconazole in mango fruit and flesh ranged from 79% to 95% at three spike levels from 0.010 mg/kg to 0.100 mg/kg, with the relative standard deviations of 4.4% to 8.6%. The lowest detection limit for difenoconazole was 0.001 mg/kg, and the limit of quantification was 0.005 mg/kg. The half-lives of mango were 13.2 d in Yunnan, and 10.6 d in Hainan, respectively. The residue of difenoconazole was less than 0.07 mg/kg in mango 21 d, 28 d and 35 d post application. The method shows high accuracy, high sensitivity and good linearity for the detection of difenoconazole residue.

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备注/Memo

备注/Memo:
收稿日期:2016-01-25 基金项目:农业部农药残留试验项目(2014F417);国家农产品质量安全风险评估计划项目(GJFP2015001)  作者简介:赵方方(1987-),女,山东邹城人,硕士,助理研究员,主要从事农药残留检测与农产品质量安全研究。(Tel)18876175372;(E-mail)zhaofangfangfang@163.com。
更新日期/Last Update: 2016-11-22