应用光谱峰面积法测定食品微量铁含量  

MEASURING THE IRON CONTENT IN THE FOOD TRACE IN THE WAY OF CACULATING THE SPECTRUM-PEAK AREA

作　　者：李文典[1] 杨艳杰 

机构地区：[1]漯河职业技术学院轻工系,河南漯河462000 [2]漯河医学院高等专科学校,河南漯河462000

出　　处：《食品研究与开发》2008年第6期111-112,共2页Food Research and Development

摘　　要：在邻二氮菲光度法测定金属元素含量的基础上,引入光谱峰面积技术,对微量铁进行定量测定。该方法检出限为0.076 mg/L,线性范围为0.45 mg/L^520 mg/L,样品回收率很高。本方法灵敏度较高,干扰较少,稳定性好,用于食品中微量铁的测定,避免了有关离子的干扰,提高了准确度。对于面粉、奶粉和肝等食品样品进行分析测定,结果令人满意。In order to mensurate the certain amount of iron, I apply the spectrurrr--kurtosis technic on the basis of using orthophenanthroline spectroscopy, This method can avoid to be disturbed by oher ions and raise the accuracy. I have applied this method to analyse the sample of powdered milk, flour, liver etc, the process and result is satisfactory.

关 键 词：峰面积法 微量铁 邻二氮菲 

分 类 号：TS207[轻工技术与工程—食品科学] TQ153.2[轻工技术与工程—食品科学与工程]