化工矿产地质2026，Vol.48Issue(2)：142-147,6.
电感耦合等离子体质谱法测定土壤中有效钼
Determination of Available Molybdenum in Soil by Inductively Coupled Plasma Mass Spectrometry
摘要
Abstract
The available molybdenum content in soil is crucial for plant growth and development.To accurately and efficiently determine available molybdenum in soil,this study employed an ammonium oxalate-oxalic acid solution as the extractant and optimized its preparation method.The extraction-settling time was optimized to 8 h,and the resulting extract was diluted 2-fold.95Mo was selected as the analytical isotope,and 103Rh was chosen as the internal standard element to correct for matrix effects.After optimizing the instrument parameters,inductively coupled plasma mass spectrometry(ICP-MS)was used for determination.Validation using the standard substance for soil available component analysis yielded a method detection limit of 0.0012 mg/kg and a quantitation limit of 0.0050 mg/kg.The relative standard deviations(RSD)were all below 4％,and the relative errors were all below 2％,with the measured values being in good agreement with the certified values.This method is simple,efficient,and suitable for the continuous determination of large batches of samples.关键词
ICP-MS/土壤/有效钼/浸提/基体干扰Key words
ICP-MS/Soil/Available molybdenum/Extraction/Matrix interference分类
化学化工引用本文复制引用
单程堃,何汉江,张霞,刘金龙,李玉慧,张冬月,刘子建..电感耦合等离子体质谱法测定土壤中有效钼[J].化工矿产地质,2026,48(2):142-147,6.基金项目
"十四五"国家重点研发计划课题"西部干旱区煤能源基地生态保护与资源综合利用及技术示范"(编号:2022YFF1303305)、自然资源部部省合作项目"高原山区露天矿山生态修复成效评估技术方法研究"(编号:2023ZRBSHZ010) （编号:2022YFF1303305）
