离子色谱梯度淋洗法分析食品中丙酸钙.pdf

文档介绍：11 1
食品科技
食品安全与检测年第卷第期
FOOD SCIENCE AND TECHNOLOGY 2011 36 4
离子色谱梯度淋洗法分析食品中
丙酸钙
杨芳 1, 张锦梅 2
淮安市产品质量监督检验所,淮安;
(1. 223001
青岛盛翰离子色谱公司,青岛
2. 266000)
建立了国产离子色谱梯度淋洗条件下测定食品中丙酸钙含量的方法用水蒸气蒸馏法提取
摘要: 。
食品中丙酸钙,方法加标回收率,最低检出限为,相对标准偏差为
%~% 5 mg/L %。
此方法缩短了分析时间,提高了灵敏度和精密度,为定性和定量分析提供了优良的途径
。
离子色谱;梯度淋洗;食品;丙酸钙
关键词:
中图分类号: TS 文献标志码: A 文章编号: 1005-9989(2011)04-0260-02
Analysis of calcium propionate in foods by gradient leaching
method of IC
YANG Fang1, ZHANG Jin-mei2
( An Institute of Supervision and Inspection on Product Quality, Huai'an 223001;
Shenghan pany, Qingdao 266000)
Abstract: The method was proposed for calcium propionate in foods by Gradient Leaching of IC which made
in China. Using distillation by vapor to extract calcium propionate in foods, the recovery for real samples was
%~%, the lowest of detection was 5 mg/L, and the relative standard deviation was %. Analysis
time was shortened, sensitivity and precision were also improved by this method. It provided excellent
approach for qualitive and quantitative analysis further.
Key words: IC; gradient leaching method; foods; calcium propionate
丙酸钙,白色结晶性粉末,熔点以上油水果等防腐保鲜,其中丙酸钙不仅可以延长
400 ℃、
分解,无臭或具轻微臭可制成一水物或三水食品的保质期,而且还可以通过代谢作用被人体
( ) 。
物,为单斜板状结晶,可溶于水,微溶于甲醇吸收,供给人体必需的钙,这是其他防腐剂无法
、
乙醇,不溶于苯及丙酮在酸性条件下,产生游比拟的
。[1- 2]。
离丙酸,具抗菌作用,