CAJ | 학술논문

本文利用微波消解处理样品，采用 ICP - MS 法测定茶叶及其浸泡液中稀土的含量。通过实验对消解条件及 ICP - MS 测定条件进行优化选择。检测限为：0．0011～0．0037ng/mL ，测定下限：0．0043～0．012ng/mL ，回收率：96％～103％；RSD ：1．4％～4．4％。茶叶浸泡2h 后溶液中稀土总量已经达到平衡，浸泡液中稀土总量远低于茶叶中稀土总量。
본문이용미파소해처리양품，채용 ICP - MS 법측정다협급기침포액중희토적함량。통과실험대소해조건급 ICP - MS 측정조건진행우화선택。검측한위：0．0011～0．0037ng/mL ，측정하한：0．0043～0．012ng/mL ，회수솔：96％～103％；RSD ：1．4％～4．4％。다협침포2h 후용액중희토총량이경체도평형，침포액중희토총량원저우다협중희토총량。
In this paper ,the sample was dissolved using microwave digestion ,determination of total content of rare earth in tea and its soaking solution by inductively coupled plasma mass spectrometry .The detection limit was 0 .0011ng/mL-0 .0037ng/mL ,the quantification limit was 0 .0043ng/mL-0 .012ng/mL ;the recovery was 96% - 103% and RSD was 1 .4% -4 .4% .After the tea soaked 2h ,the total content of rare earth in the solution reached equilibrium ,which was far less than the tea .