GC-MS测定香瓜中苯醚甲环唑残留量不确定度的评定  

Uncertainty Evaluation of the Residues of Difenoconazole in Muskmelon by GC-MS

作　　者：林旭梅[1,2] 蔡恩兴[2] 欧舒颖 赖添财[2] 

机构地区：[1]漳州市绿农农业技术推广中心,福建漳州363000 [2]漳州市农业检验监测中心,福建漳州363000

出　　处：《热带农业科学》2014年第7期84-87,共4页Chinese Journal of Tropical Agriculture

摘　　要：介绍气相色谱-质谱联用法(GC-MS)测定香瓜中苯醚甲环唑残留量不确定度评定的方法,建立数学模型分析不确定度的来源,并对其各个分量进行量化和合成。结果表明:标准曲线拟合和重复性测量所引入的不确定度分量最大;当香瓜中苯醚甲环唑含量为0.1351 mg/kg时,其扩展不确定度为0.0118 mg/kg(k=2)。The method of uncertainty evaluation for the residues of difenoconazole in muskmelon by GC-MS was introduced, and the mathematical model of uncertainty evaluation was established. The sources of uncertainty that may be introduced were analyzed, and each component of uncertainty was quantified and combined. The results showed that the curve fitting and measurement repeatability were the main sources of uncertainty, and the expanded uncertainty was 0.011 8 mg/kg（k=2） as the residues of difenoconazole in muskmelon was 0.135 1 mg/kg.

关 键 词：气相色谱-质谱 不确定度 苯醚甲环唑 香瓜 

分 类 号：O657.71[理学—分析化学]