CAJ | 학술논문

采用HN0i微波消解，ICP—MS测定了茶叶中的38种元素，并从方法的线性、检出限、准确度、精密度和回收率方面进行了验证，实验表明其中35种元素的线性r〉0．9960，精密度RSD〈3％，回收率在89．3％～111．2％之间，满足实际样品检测的需求。本方法可以通过一次消化快速测定茶叶样品中35种元素，结果准确可靠、快速灵敏，缩短了检测周期。
채용HN0i미파소해，ICP—MS측정료다협중적38충원소，병종방법적선성、검출한、준학도、정밀도화회수솔방면진행료험증，실험표명기중35충원소적선성r〉0．9960，정밀도RSD〈3％，회수솔재89．3％～111．2％지간，만족실제양품검측적수구。본방법가이통과일차소화쾌속측정다협양품중35충원소，결과준학가고、쾌속령민，축단료검측주기。
A method was used to determine 38 elements in tea by using ICP-MS after microwave digestion with ni- trate, which was validated from the aspects of linearity, detection limit, accuracy, precision and recovery rate. Re- sults showed that 35 elements met the requirements of real sample detection, with linear r 〉 0. 9960, RSD 〈 3 % and recoveries 89.3 % -111.2 %. This method could detect 35 elements from tea samples by rapid determination through single digestion. The results were accurate, reliable, rapid and sensitive. The method could shorten the testing time.