| 柑橘及土壤中高效氯氟氰菊酯残留分析方法研究 |
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| 引用本文： | 杨玉霞,莫仁甫,王天顺,周其峰. 柑橘及土壤中高效氯氟氰菊酯残留分析方法研究[J]. 南方农业学报, 2012, 43(1): 38-41 |
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| 作者姓名： | 杨玉霞 莫仁甫 王天顺 周其峰 |
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| 作者单位： | 广西农业科学院植物保护研究所;中国农业科学院甘蔗研究中心/广西农业科学院甘蔗研究所 |
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| 基金项目： | 农业部资助项目(2008P527);广西农业科学院基本科研业务专项项目(2010032) |
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| 摘 要： | 【目的】建立快速、实用的测定柑橘及土壤中高效氯氟氰菊酯残留的方法。【方法】样品经甲醇提取、弗罗里硅土柱净化、浓缩、定容后，用带μ-ECD检测器的气相色谱仪进行测定。【结果】高效氯氟氰菊酯在0.005~1.000 μg/mL范围内线性良好，线性相关系数r＝0.9996。该方法对高效氯氟氰菊酯标样的最小检出限为1.0×10-12 g，对橘皮、橘肉和土壤的最低检出浓度均为0.001 mg/kg，样品平均回收率为90.96%~104.21%，相对标准偏差为2.73%~10.45%。【结论】建立的GC-μECD检测方法具有分离效果好、回收率高、经济快速、准确度和灵敏度高的特点，适用于柑橘及土壤中高效氯氟氰菊酯的残留检测。
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| 关 键 词： | 高效氯氟氰菊酯 柑橘 土壤 残留检测 气相色谱 |
Analytical method for detecting 1ambda-cyhalothrin residues in citrus fruits and soil |
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| YANG Yu-xia,MO Ren-fu,WANG Tian-shun,ZHOU Qi-feng. Analytical method for detecting 1ambda-cyhalothrin residues in citrus fruits and soil[J]. Journal of Southern Agriculture, 2012, 43(1): 38-41 |
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| Authors: | YANG Yu-xia MO Ren-fu WANG Tian-shun ZHOU Qi-feng |
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| Affiliation: | 1 (1 Plant Protection Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China; 2 Sugarcane Research Center, Chinese Academy of Agricultural Sciences / Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China) |
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| Abstract: | [Objective]The goal of this experiment was to develop a rapid method for detecting lambda-cyhalothrin residues in citrus fruits and soil. [Method]The samples were extracted with methanol, cleaned up and concentrated on a florisil column, and analyzed by GC using μ-ECD. [Result]The linear relationship of lambda-cyhalothrin was found better in the concentration range from 0.005 to 1.000 μg/mL with the linear correlation coefficient of 0.9996. Minimum limit of detection in standard samples was recorded as 1.0×10-12 g in the present method, the lowest detectable concentration in citrus peel, pulp, and soil samples was 0.001 mg/kg. The average recovery varied from 91.24 to 104.61%, and the relative standard deviation ranged from 2.73 to 10.45%. [Conclusion]Owing to its good isolation effect, high recovery rate, rapidness, accuracy and high sensitivity, the GC method using μECD is immensely applicable to detect the lambda-cyhalothrin residues in citrus fruits and soil. |
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| Keywords: | lambda-cyhalothrin citrus soil residues gas chromatography |
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