广东化工2024，Vol.51Issue(13) ：106-109.DOI:10.3969/j.issn.1007-1865.2024.013.028

气相色谱单柱法测定新会柑果皮中三唑磷农药残留的不确定度评定

Uncertainty Evaluation for Determination of Triazophos Residues in Xinhui Citrus Peel by Gas Chromatography Single-column Method

熊文明 周敏瑜 皮小弟
广东化工2024，Vol.51Issue(13) ：106-109.DOI:10.3969/j.issn.1007-1865.2024.013.028
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  • 维普
  • 万方数据

气相色谱单柱法测定新会柑果皮中三唑磷农药残留的不确定度评定

Uncertainty Evaluation for Determination of Triazophos Residues in Xinhui Citrus Peel by Gas Chromatography Single-column Method

熊文明 1周敏瑜 1皮小弟1
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作者信息

  • 1. 广东江门中医药职业学院,广东 江门 529000
  • 折叠

摘要

目的:评定气相色谱单柱法测定新会柑果皮中三唑磷农药残留的不确定度.方法:建立计算模型,分析和计算农药残留测量结果的不确定度分量,得出农药残留量的不确定度.结果:当新会柑果皮三唑磷残留量为1.25 mg/kg,其扩展不确定度为0.52 mg/kg(置信因子k=2).结论:标准系列曲线拟合过程是影响该方法不确定度的主要因素,其次样品的前处理对不确定度产生的影响也较大.因此,在新会柑果皮的三唑磷农药残留测定中,应从这两个方面加以重视,以提高准确性.

Abstract

Objective:To evaluate the uncertainty of Gas chromatography in the determination of triazophos pesticide residues in citrus peel of Xinhui District.Methods:The uncertainty components of pesticide residues were analyzed and calculated by establishing a calculation model,and the uncertainty of pesticide residues was obtained.Results:When the residue of triazophos in Xinhui District peel was 1.25 mg/kg,the expanded uncertainty was 0.52 mg/kg(confidence factor k=2).Conclusion:The fitting process of standard series curve is the main factor affecting the uncertainty of this method,and the pretreatment of samples has a greater impact on the uncertainty.Therefore,the determination of triazophos pesticide residues in Xinhui District orange peel should pay attention to these two aspects in order to improve the accuracy.

关键词

气相色谱法/新会柑果皮/农药残留/不确定度

Key words

gas chromatography/Xinhui citrus peel/pesticide residue/uncertainty

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出版年

2024
广东化工
广东省石油化工研究院

广东化工

影响因子：0.288
ISSN：1007-1865
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