现代农业科技
現代農業科技
현대농업과기
XianDai NongYe KeJi
2015年
19期
143-146
,共4页
姚祖江%魏超%谢君红%冯辉
姚祖江%魏超%謝君紅%馮輝
요조강%위초%사군홍%풍휘
蔬菜%黄瓜%不确定度%残留量%有机磷%气相色谱法
蔬菜%黃瓜%不確定度%殘留量%有機燐%氣相色譜法
소채%황과%불학정도%잔류량%유궤린%기상색보법
vegetables%cucumber%uncertainty%residual amounts%GC
以测定黄瓜中毒死蜱残留量为例,建立数学模型,并从称样质量、定容体积、重复性等对影响测量结果的各个分量进行评定,得出检测方法重复性引入的相对不确定度为3.86%,毒死蜱标准溶液浓度测量值引入的相对不确定度为1.393%,色谱仪峰面积测量引入的相对不确定度为1.633%.以上3项分量对测量不确定度构成显著贡献.
以測定黃瓜中毒死蜱殘留量為例,建立數學模型,併從稱樣質量、定容體積、重複性等對影響測量結果的各箇分量進行評定,得齣檢測方法重複性引入的相對不確定度為3.86%,毒死蜱標準溶液濃度測量值引入的相對不確定度為1.393%,色譜儀峰麵積測量引入的相對不確定度為1.633%.以上3項分量對測量不確定度構成顯著貢獻.
이측정황과중독사비잔류량위례,건립수학모형,병종칭양질량、정용체적、중복성등대영향측량결과적각개분량진행평정,득출검측방법중복성인입적상대불학정도위3.86%,독사비표준용액농도측량치인입적상대불학정도위1.393%,색보의봉면적측량인입적상대불학정도위1.633%.이상3항분량대측량불학정도구성현저공헌.
From the determination of residual amounts of chlorpyrifos in cucumber,a mathematical model was established and the end-result of each component was evaluated through the sample quantity,reagent volume and repeatability.Relative uncertainty caused by testing repeatability was 3.86%.Relative uncertainty caused by the concentration chlorpyrifos standards was 1.393%,relative uncertainty caused by the measurement of peak area was 1.633%.These three components had a significant contribution to measurement uncertainty.
