檢定_校準(zhǔn)氣相色譜儀檢測器的常見問題及解決辦法_圖文

1、 27參考文獻(xiàn):1中華人民共和國衛(wèi)生部.GB5009.5-2010食品安全國家標(biāo)準(zhǔn)食品中蛋白質(zhì)的測定S.北京,2000.2國家質(zhì)量技術(shù)監(jiān)督局.GB18186-2000釀造醬油S.北京,2000.3國家質(zhì)量技術(shù)監(jiān)督局.JJF1059-1999測量不確定度評定與表示.北京,1999.4中國合格評定國家認(rèn)可委員.CNASGL06:2006化學(xué)分析中不確定度的評估指南.北京,2006.6.5國家質(zhì)量監(jiān)督檢驗(yàn)檢疫總局.JJG196-2006常用玻璃量器計(jì)量檢定規(guī)程S.北京,2006.6鄭弘毅.終點(diǎn)誤差導(dǎo)致的測量不確定度計(jì)算J.計(jì)量數(shù)報(bào).2009,30(47國家質(zhì)量監(jiān)督檢驗(yàn)檢疫總局.GB/T601-200

2、0化學(xué)試劑標(biāo)準(zhǔn)溶液的制備S.北京,2002.The Measurement of Uncertainty for the Determination of Total Nitrogen Contentin Soy by Full-Automatic Kjeldahl ApparatusAbstract: Total nitrogen content in soy was determined by full-automatic Kjeldahl apparatus in the paper. The uncertainty during determination was analyzed a

3、nd quantized and each component contribution to uncertainty of results was given. Standard uncertainty and expanded uncertainty of determination results were obtained, and the results were represented in this paper. The results showed that the uncertainty arising from sample repeatability test and p

4、ipetting sample volume was the largest, Hydrochloride (HCl standard solution in the second place.Key words: full-automatic kjeldahl apparatus; toal nitrogen; uncertaintyHE Menghang 1,2(1,Fujian Provincial Center Inspection Institute, Fuzhou 350002, Fujian, China(2,National Center of Processed Food Q

5、uality Supervision and Testing (Fuzhou, Fuzhou 350002, Fujian, China(上接第22頁Trouble Analysis and Shooting in Verification or Calibration of Gas ChromatographAbstract: Some common problems and solutions about verficating or calibrating Gas Chromatograph are introduced here.Key words: gas chromatograph; detector; verification; calibrationWANG Wei(Xinjiang Uygur Autonomous Regi