高效液相色譜法測定柑桔蜜餞胭脂紅的不確定度

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摘 要：本文采用高效液相色譜法，測定柑桔蜜餞中胭脂紅含量，通過構(gòu)建數(shù)學(xué)模型，統(tǒng)計分析引起檢驗(yàn)結(jié)果偏差的主要因素來源，計算出測定柑桔蜜餞中胭脂紅含量的不確定度。結(jié)果表明，在95%置信區(qū)間下，柑桔蜜餞中胭脂紅含量的測定結(jié)果為0.091 g·kg-1，擴(kuò)展不確定度為0.003 g·kg-1（k=2）。

關(guān)鍵詞：高效液相色譜法；柑桔蜜餞；胭脂紅；不確定度

Uncertainty in the Determination of Carmine in Citrus Candied Fruits by High Performance Liquid Chromatography

LI Jiahong1，2，3， ZHAN Yuemei1，2，3， LUO Citing1，2，3

（1.Guangdong Food Industry Public Laboratory， Guangzhou 511442， China; 2.Guangdong Food Industry Institute Co.， Ltd.， Guangzhou 511442， China; 3.Guangdong Food Quality Supervision and Inspection Station， Guangzhou 511442， China）

Abstract： This article uses high-performance liquid chromatography to determine the content of carmine in citrus candied fruits. By constructing a mathematical model and statistically analyzing the main factors that cause deviation in the test results， the uncertainty of carmine content in citrus candied fruits is calculated. The results indicate that at a 95% confidence interval， the determination result of carmine content in citrus candied fruits was

0.091 g·kg-1， with an expanded uncertainty of 0.003 g·kg-1 （k=2）.

Keywords： high performance liquid chromatography; citrus candied fruits; carmine; uncertainty

胭脂紅是我國使用最廣泛、用量最大的一種水溶液偶氮類人工合成色素。（剩余4864字）