微波消解—火焰原子吸收法测定土壤中的钼

Determination of Molybdenum in Soil by Microwave Digestion-Flame Atomic Absorption Spectrophotometric

采用硝酸-氢氟酸-高氯酸混酸体系消解，结合火焰原子吸收分光光度法测定土壤中的钼。用微波消解土壤、电热板加热驱酸的方法有效控制了样品的损失及荇染，前处理操作过程简单，省时、省力；称样量和酸用量少，环境污染小，方法的灵敏度、测定结果的精密度均符合分析测试质量控制要求。方法的加标回收率为93，6％～104．3％，能够满足环境监测分析的要求。

By using the HNO3-HF-HC104 mixed acid system digestion combined with flame atomic absorption spectrophotometrie method for the determination of molybdenum in soil. The use of microwave digestion soil, electric heating plate disperse acid method can effectively control the sample loss and pollution, before handling process is simple, time-saving, labor-saving; less sample amount and acid consumption, less environmental pollution. The sensitivity of the method, precision of the determination results meet the testing requirements of quality control. Recoveries rate of method is 93.6% - 104.3%, can meet the requirements of environmental monitoring analysis.