微波消解-电感耦合等离子体发射光谱法测定土壤有效硼
Determination of available boron in soil by microwave digestion-Inductively coupled plasma emission spectrometry
谭昌玲 1杨宝红 1齐书洲 1熊福平 1冉福林 1鄢中妮 1万传杰 1邓端富1
作者信息
- 1. 资源与生态环境地质湖北省重点实验室(湖北省地质局),湖北 武汉 430034;湖北省地质局第二地质大队,湖北 恩施 445000
- 折叠
摘要
探究用微波消解进行前处理与电感耦合等离子体发射光谱仪(ICP-OES)检测相结合的方法,通过实验对消解时间、消解温度、升温时间及测定过程中铁共存干扰元素、土壤的pH进行了研究.在ICP-OES光谱仪的最优工作条件下,谱线249.773 nm的硼灵敏度高、峰形好,测定结果表明,当样重为10.00 g,浸提液体积为20 mL时,方法检出限为0.005 mg/kg,测定下限为0.020 mg/kg,精密度和准确度满足检测要求,此法适用于批量土壤有效硼的测定.
Abstract
To explore the combination of microwave pre-processing with Inductively coupled plasma emission spectrometry(ICP-OES)in the detection of soil available boron,the digestion time,digestion temperature,temperature rise time,ferrum(Fe)co-existing interference elements and soil pH in the determination process were studied.Under the optimum working conditions of ICP-OES spectrometer,the spectral line boron(B)249.773 nm had high sensitivity and good peak shape.The results showed that the detection limit was 0.005 mg/kg when the sample weight was 10.00 g and the volume of extraction was 20 mL,the lower limit of determination was 0.020 mg/kg,and the precision and accuracy could meet the detection requirements.This method is suitable for the determination of available boron in batch soil.
关键词
微波消解/ICP-OES法/土壤有效硼Key words
microwave digestion/ICP-OES method/soil available boron引用本文复制引用
出版年
2024
NETL
NSTL
万方数据