小麦粉中甲醛次硫酸氢钠含量数字色度测定方法  

Determination of sodium formaldehyde sulfoxylate in wheat flour by digital chromatometry

作　　者：乔艳慧[1] 侯彩云[1] 路勇[1] 黄华[1] 

机构地区：[1]中国农业大学食品科学与营养工程学院,北京100083

出　　处：《粮油食品科技》2011年第3期24-26,共3页Science and Technology of Cereals,Oils and Foods

基　　金：863项目-生鲜农产品适量安全可追溯系统研究与示范(20060110Z2005)

摘　　要：提出一种小麦粉中甲醛次硫酸氢钠含量的检测方法。利用图像处理软件对样品显色液的数字图像信息进行分析、测定。研究结果表明,甲醛浓度在0～4.5μg/mL时,与色度B值具有良好的线性关系,方法检出限为0.0649μg/mL,准确度和精密度良好。能较好的排除小麦粉中淀粉及过氧化苯甲酰对测定的干扰,是一种较为快速,低成本的检测方法。The determination of sodium formaldehyde sulfoxylate in wheat flour by digital chromatometry was provided.The information of the samples＇ color liquid was analyzed by image processing software. The result showed that the concentration of formaldehyde was linear with chroma B value as it was 0～4. 5μg/mL and the detection limit of this method was 0.0649μg/mL.The new method can reduce the cost and time consumption with good precision,and eliminate the interference of benzoyl peroxide and starch in flour against the measurement.

关 键 词：甲醛次硫酸氢钠 甲醛 小麦粉 乙酰丙酮 检测 

分 类 号：TS211.7[轻工技术与工程—粮食、油脂及植物蛋白工程]