酿酒科技
釀酒科技
양주과기
LIQUOR-MAKING SCIENCE & TECHNOLOGY
2012年
2期
103-107
,共5页
气相色谱%浓香型白酒%四大酯%不确定度%评定
氣相色譜%濃香型白酒%四大酯%不確定度%評定
기상색보%농향형백주%사대지%불학정도%평정
GC%Luzhou-flavor liquor%four main esters%uncertainty%evaluation
按照本公司对浓香型白酒四大酯的气相色谱分析方法,依据JJF1059—1999[1]对四大酯气相色谱定量分析过程的不确定度来源进行分析,建立了其测量结果不确定度的数学模型,并分别对四大酯的不确定度进行了评定和合成,最终得到测量结果在95%置信区间下的扩展不确定度。结果表明,该法对浓香型白酒四大酯的测定结果准确度高,符合ISO/IEC17025对检测实验室的要求[2],达到国家相关标准的规定要求。
按照本公司對濃香型白酒四大酯的氣相色譜分析方法,依據JJF1059—1999[1]對四大酯氣相色譜定量分析過程的不確定度來源進行分析,建立瞭其測量結果不確定度的數學模型,併分彆對四大酯的不確定度進行瞭評定和閤成,最終得到測量結果在95%置信區間下的擴展不確定度。結果錶明,該法對濃香型白酒四大酯的測定結果準確度高,符閤ISO/IEC17025對檢測實驗室的要求[2],達到國傢相關標準的規定要求。
안조본공사대농향형백주사대지적기상색보분석방법,의거JJF1059—1999[1]대사대지기상색보정량분석과정적불학정도래원진행분석,건립료기측량결과불학정도적수학모형,병분별대사대지적불학정도진행료평정화합성,최종득도측량결과재95%치신구간하적확전불학정도。결과표명,해법대농향형백주사대지적측정결과준학도고,부합ISO/IEC17025대검측실험실적요구[2],체도국가상관표준적규정요구。
GC analytical method by using internal standard method was applied in our company for measuring four main esters content in Luzhou-flavor liquor.The uncertainty source in measuring process was analyzed based on JJF1059-1999 and the mathematical model of the uncertainty of measurement results had been established.Then the evaluation and the synthesis of the uncertainty of four main esters were carried out respectively and the expanded uncertainty at 95% confidence intervals of measurement results was finally obtained.The results suggested that such method had precise measurement results and it met ISO/IEC17025 lab requirements and relative national requirements.（Tran.by YUE Yang）
