蜜饯中二氧化硫的不确定度的评定  

Uncertainty Evaluation of Determination of Sulfur Dioxide in Sweetmeats

作　　者：宋连君 Song Lianjun(Shenyang Testing Institute for Food and Drug Control, Shenyang 110122, China)

机构地区：[1]沈阳市食品药品检验所

出　　处：《现代食品》2019年第8期179-182,共4页Modern Food

摘　　要：本文对蜜饯中二氧化硫的测定进行的不确定度评定,通过建立数学模型并分析其不确定来源,得到其不确定来源是测量重复性、样品质量、容量瓶、滴定管、标准溶液浓度、标准溶液稀释过程。结果表明,蜜饯中二氧化硫的含量为(0.308±0.0047)g·kg^-1,未超过国标规定的限量标准0.35g·kg^-1的限量标准(95%置信概率,k=2)。To evaluate the uncertainty of determination of sulfur dioxide in sweetmeats, the mathematical model was establishedto analyze the sources of uncertainty. All kinds of uncertainty were evaluated and synthesized according to different classification of sources. The results showed that the sulfur dioxide content insweetmeatswas (0.308±0.0047) g·kg^-1, which unexceeded the national standard limit 0.35 g·kg^-1 (95% confidence probability, k=2).

关 键 词：蜜饯 二氧化硫 不确定度 

分 类 号：TS255.7[轻工技术与工程—农产品加工及贮藏工程]