CAJ | 학술논문

ICP-AES是土壤和沉积物中重金属理想的分析方法,很多元素通过四酸法全消解后,用其测定都可以得到理想的结果。但在用该方法测定土壤和沉积物中的钛含量时,结果严重偏低。调整前处理方法为碱熔法,选用性质较温和的熔剂,引入内标,优化实验条件后,样品经ICP-AES测定钛可得到理想的测定结果,检出限为10 mg/kg,标准偏差0．47%~1．93%( n=6),土壤回收率为84．9%,沉积物回收率为83．0%。
ICP-AES시토양화침적물중중금속이상적분석방법,흔다원소통과사산법전소해후,용기측정도가이득도이상적결과。단재용해방법측정토양화침적물중적태함량시,결과엄중편저。조정전처리방법위감용법,선용성질교온화적용제,인입내표,우화실험조건후,양품경ICP-AES측정태가득도이상적측정결과,검출한위10 mg/kg,표준편차0．47%~1．93%( n=6),토양회수솔위84．9%,침적물회수솔위83．0%。
ICP-AES is the ideal analytical method of heavy metal determination in soils and sediments. the de-termination results of many kinds elements in samples can be successfully achieved after the digestion with 4 kinds of acids, but Ti is an exception, its result is lower than the standard. Now the method of pre-treatment using Alka-line fusion is adopted, the ideal determination result is achieved using ICP-AES after the optimization of the method, the determination limit is 10 mg/kg, the recovery of the soil is 84. 9%, the sediment is 83. 0%.