ICP-AES法测定胡萝卜中常微量元素的研究  

Study on Common and Trace Elements in Carrot by ICP-AES

作　　者：徐娟[1] 郑志锋 李云仙[1] 雷然[1] 

机构地区：[1]云南省西南林业大学理学院,云南昆明650224 [2]云南省高校生物质化学炼制与合成重点实验室 [3]西南林业大学材料工程学院,云南昆明650224

出　　处：《食品研究与开发》2015年第16期125-127,共3页Food Research and Development

基　　金：林业公益性行业科研专项项目资助(201104046);云南省教育厅科学研究基金重点项目资助(20122067)

摘　　要：分别采用微波消解法、湿法处理样品，以电感耦合等离子体发射光谱仪（ICP-AES）检测胡萝卜中Cu、Fe、Zn、Mn、Na、K、Ca、Mg、P等16种元素的含量，结果表明：红黄胡萝卜中Fe、Na、K、Ca、Mg、P等元素的含量较高，且K、Mg和Ca表现红胡萝卜〉黄胡萝卜，Fe、Na和P表现为黄胡萝卜〉红胡萝卜；Sr仅红胡萝卜中含有，含量为26.22μg/g；ICP-AES检测各元素的相对标准偏差（RSD）在0.08%~4.92%之间，各元素回收率在92.18%~106.39%之间。表明湿法消解和微波消解均具有较好的精密度和准确度。The contents of 16 elements such as Cu, Fe, Zn, Mn, Na, K, Ca, Mg and P were studied by ICP-AES with wet digestion method and the microwave digestion in carrots. Results indicated that contents of Fe , Na, K, Ca, Mg and P were higher in both red and yellow carrots. Contents of K, Mg and Ca in red carrots were higher than that in yellow carrots;whereas contents of Fe, Na and P in yellow carrots were higher than that in red carrots. Sr was detected in red carrots and the content was 26.22μg/g. The relative standard deviations and recoveries of all elements determined with ICP-AES were between 0.08%-4.92%and 92.18%-106.39%, respectively. Combination of microwave digestion and wet digestion with the ICP-AES showed that both have better precision and accuracy.

关 键 词：电感耦合等离子体发射光谱法 胡萝卜 常微量元素 

分 类 号：TS255.7[轻工技术与工程—农产品加工及贮藏工程] O657.3[轻工技术与工程—食品科学与工程]