CAJ | 학술논문

提出了微波消解IC P-M S法测定土壤中13种重金属元素的方法。采用硝酸-盐酸-氢氟酸-高氯酸体系消解，稀释定容后用ICP-MS对溶液进行元素的测定，在优化仪器工作参数后，以内标（Sc、Ge、Bi、In、Rh）进行校正。元素检出限为0．006～0．2μg/L ，测定国家标准物质四川盆地土壤成分分析标准物质GBW07428中的元素，测定值与标准值或参考值基本一致，该方法快速、简便、准确，适于土壤中多种微量元素的测定。
제출료미파소해IC P-M S법측정토양중13충중금속원소적방법。채용초산-염산-경불산-고록산체계소해，희석정용후용ICP-MS대용액진행원소적측정，재우화의기공작삼수후，이내표（Sc、Ge、Bi、In、Rh）진행교정。원소검출한위0．006～0．2μg/L ，측정국가표준물질사천분지토양성분분석표준물질GBW07428중적원소，측정치여표준치혹삼고치기본일치，해방법쾌속、간편、준학，괄우토양중다충미량원소적측정。
A method of microwave digestion -ICP -MS is developed in this article to determine 13 heavy metal elements in soil .After microwave digestion in HNO3-HCI-HF-HCIO4 solution system ,the samples are diluted with the method of constant volume .Under the optimized conditions the samples are analyzed by ICP -MS .The internal standard elements (Sc ,Ge Bi ,In ,Rh) are used to compensate for matrix suppression effect and sensitivity drift .The analytical results show that the detection limits of the13 elements are 0 .006~0 .2ug/L .The national standard reference material GBW07428 is analyzed by the described method and the measured element values accords with the standard values or the reference values .The results indicate that the method is rapid ,simple and accurate for determining multi-heavy metal elements in soil samples .