5, : 引言,,,, [1-4], 2008~2010, 117, 59%, 12.8%,,, [5],,, [6-8],, 2 茶叶农残检测方法标准现状 2.1 农药残留限量指标, ( ) GB 2763, , GB [9], 5 ; 10 ; GB

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1 6 5 Vol. 6 No Journal of Food Safety and Quality May., 2015 * 陆小磊, 周卫龙 ( /, ) 摘要 :,,, 19,,,,,, 关键词 : ; ; ; Overview of Chinese determination standards of pesticides residues in tea LU Xiao-Lei, ZHOU Wei-Long * (China National Center of Quality Supervision and Inspection of Tea, Hangzhou Tea Research Institute, China COOP, Hangzhou , China) ABSTRACT: With the increasingly serious problem of pesticide residues in tea, Chinese determination standards for pesticides residues in tea were gradually revealed. In this paper, international pesticides maximum residue limits (MRL) in tea, current situation and problem of Chinese standard determination methods and suggestion were involved. Chinese pesticides MRL in tea were gradually established, but there were still lots of distances between China and other countries. Except for some special pesticides, so far 19 kinds of related standards covered most pesticides in tea have been published in China, including multi-residue and single-residue determination methods. Moreover, with the improvement of analysis technology, latest standards were more efficient and reliable, such as solvent consumption, extraction methods and detectors, and so on. However, problems still existed in Chinese standards, containing imperfect standard system, low usage and high repetition rate. Therefore, countermeasures of investigating, cleaning up and improving standards were made for developing standards system. KEY WORDS: tea; pesticide residues; method standards; detection technology * 通讯作者 :,, z-weilong@163.com *Corresponding author: ZHOU Wei-Long, Senior Engineer, Hangzhou Tea Research Institute, No.41, Caihe Road, Jianggan District, Hangzhou , China. z-weilong@163.com

2 5, : 引言,,,, [1-4], 2008~2010, 117, 59%, 12.8%,,, [5],,, [6-8],, 2 茶叶农残检测方法标准现状 2.1 农药残留限量指标, ( ) GB 2763, , GB [9], 5 ; 10 ; GB [10] GB , GB ( ) 1357 [11] GB , (acceptable daily intake, ADI), 3, ADI, 57, 31, (codex alimentarius commission, CAC), 37 [11] 2.2 方法标准, 4 [12], (GB) (NY) (SN),, (DB) (QB), 5, 2, 10, 2 [13-31] 检测项目, 1, GB/T [13] GB/T [14] SN/T [15] SN/T [16] SN/T [17], GB/T [18] GB/T [19] SN/T [20] SN/T [21] SN/T [22] SN/T [23] SN/T [24] NY/T [25] NY/T [26],, GB/T GB/T ~500,,,, GB , 前处理,, [32-37],,,, ( 1),,,,, [38],,,,, [39], GB/T [27] (accelerated solvent extraction, ASE),, SN/T 0711 ( ), ( ) GB/T DB34/T 1075 [30] DB34/T 1076 [31],,, 1,,

3 [13-31] 表 1 茶叶农药残留检测方法标准的检测项目 前处理和定性定量 Table 1 Determination items, precondition, and quantitative and qualitative standard methods of pesticide residues of tea [13-31] 1 GB/T , HPLC-UV 2 GB/T (ASE) (GPC) GC-MS 3 GB/T GC-MS 4 GB/T LC-MSMS 5 GB/T GC-ECD 6 SN/T GC-NPD 7 SN/T GC-MS 8 SN * GC-ECD 9 SN/T , GC-ECD 10 SN/T HPLC-UV 11 SN/T ( ), HLB LC-MSMS 12 SN/T GC-ECD 13 SN GC-ECD 14 SN/T , GC-ECD 15 SN/T GC-FPD 16 NY/T GC-FPD 17 NY/T , ENVI-18 HPLC-UV 18 DB34/T , Florisil GC-ECD 19 DB34/T , CARB/NH 2 GC-NPD * [21],,, [41-45], GB/T 23204,,, SN 0147,,,, DDT, GB/T (gel permeation chromatography, GPC), GPC, [46,47],, [5] 仪器测定, 1, - (gas chromatography-electron capture detector, GC-ECD) - (gas chromatographyflame photometric detector, GC-FPD) - (gas chromatography-nitrogen phosphorous detector, GC- NPD) - (gas chromatography-mass spectrometer, GC-MS) - (high-pressure liquid chromatography with UV detector, HPLC-UV) - (liquid chromatography-

4 5, : 1551 tandem mass spectrometer, LC-MSMS) GC-ECD, GC-FPD GC-NPD,, [48],,, GB/T NY/T 1724, GB/T 23205,,,,,, GB/T GB/T GB/T NY/T 1591 [28] NY/T 0711, SN/T 0711, 3 存在的问题,,,,,,, [49] 3.1 体系不完善,, ( ),,,, 3.2 采用率低 GB (MRL), 25, 9,,,,,, 3,, 3.3 重复性高,,,,, [50] 3, 4,, 4 对策,,, 4.1 研究方法标准现状 2009, [50],,,,,, 4.2 梳理现有标准,,, 4.3 完善方法标准体系,,,, [51],,,, 参考文献 [1] European Union: Pesticide residues and maximum residue levels [DB/OL]. [2] [EB/OL]. asp?id=40885.

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