纳豆咀嚼片中微量元素铁、锌、铜、锰的分析  

DETERMINATIION OF TRACE ELEMENTS IN NATTO CHEWABLE TABLETS

作　　者：蒋志勤[1] 孙云霞[2] 徐晓霞[2] 路福平[1] 

机构地区：[1]天津科技大学生物工程学院,天津300457 [2]天津师范大学化学与生命科学学院,天津300074

出　　处：《食品研究与开发》2007年第6期141-142,共2页Food Research and Development

摘　　要：采用湿法消化样品,确定了检测纳豆咀嚼片微量元素的最佳处理条件。试验证明,混酸HNO3:HClO4的比例为4:1,消化温度为140℃,消化时间80min时样品可以得到充分分解。采用了ICP-AES法测定纳豆咀嚼片中微量元素铁、锌、铜、锰的含量,测定结果比较准确。Natto Chewable Tablets were digested by the methods of wet digesting and the suitable conditions of determination of trace elements was confirmed. It was determined that the proportion of mixed acids for digesting samples was HNO3：HC104=4：1, digesting temperature and time were 140 ℃ and 80 min. Fe, Zn, Gu, Mn in Natto Chewable Tablets were determined by ICP-AES, and the results were satisfactory.

关 键 词：纳豆咀嚼片 湿法消化 ICP-AES法 

分 类 号：TS207[轻工技术与工程—食品科学]