微波消解-等离子体发射光谱法测定果汁及其饮料中的钾和磷  

Determination of potassium and phosphate in fruit juice and fruit juice drinks by inductively coupled plasma atomic emission spectrometry (ICP-OES)

作　　者：孙丽萍[1] 

机构地区：[1]山西省食品质量监督检验中心,太原030012

出　　处：《食品工程》2011年第4期54-56,共3页Food Engineering

摘　　要：采用微波消解——等离子体发射光谱法测定果汁及其饮料中的钾和磷,两种元素标准曲线线性关系良好,相关系数均在0.999以上,加标回收率在96%～108%之间,RSD值均低于5%。该方法适用于果汁及其饮料中钾和磷的测定。Potassium and phosphate are simultaneously determined in fruit juice and fruit juice drinks by Microwave Digestion Method and ICP-OES. Standard curve linear relationship of two elements was very good. Correlation coefficients were above 0.999,and the recovery rate was from 96% to 108%. RSD values were less than 5% ,So the method is suitable to determine potassium and phosphorus in fruit juices and fruit juice drinks.

关 键 词：等离子体发射光谱 微波消解 果汁及其饮料 钾 磷 

分 类 号：TS294.3[轻工技术与工程—农产品加工及贮藏工程]