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gu lan yan b fen guang guang du fa ce ding shi pin ji ying yang yao ji zhong kang huai xue suan han liang
Author(s): 
Pages: 101-103
Year: Issue:  2
Journal: Journal of Hygiene Research

Keyword:  抗坏血酸固蓝盐B食品营养药剂分光光度法;
Abstract: 以EDTA为掩蔽剂可消除Pb2+、Cu2+、Fe3+等离子的干扰,用空白减差法可消除合成及天然色素等物质的影响。成功地将本法应用于测定蔬菜、水果、饮料及营养药剂中抗坏血酸的含量,回收率为90.O%~105%,变异系数小于3.0%。本法操作简便、快速、准确,每小时可连续测定20~30份试样。
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