微敞开石墨消解-电感耦合等离子体发射光谱仪测定土壤中铁锰铝钙镁
Micro-open Graphite Digestion-Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) Method for Determination of Total Iron Manganese Aluminum Calcium and Magnesium in Soil
谭春宇1
作者信息
- 1. 广州检验检测认证集团有限公司,广东 广州 510000
- 折叠
摘要
研究了硝酸-氢氟酸-高氯酸混合酸作为土壤消解体系,采用微敞开石墨消解方式对土壤进行快速消解,并利用电感耦合等离子体光谱仪检测土壤中的全铁、全锰、全铝、全钙、全镁元素.结果表明,该方法对于上述5 种元素的测定检出限MDL范围为0.3～1.5 mg/kg,相对标准偏差(RSD)范围为0.65%～1.4%,相对误差(RE)范围为-1.6%～0.44%.方法表现出了较低的检出限、优异的精密度和较高的准确度,为土壤中全铁、全锰、全铝、全钙、全镁的测定提供了一种即可靠又快速的消解方法.
Abstract
This study investigates the utilization of a mixed acid system composed of nitric acid,hydrofluoric acid,and perchloric acid as a soil digestion regimen.By employing a micro-open graphite digestion technique,rapid decomposition of soil samples is achieved,followed by the quantification of total iron,manganese,aluminum,calcium,and magnesium elements in the soil using Inductively Coupled Plasma Optical E-mission Spectrometry(ICP-OES).Experimental outcomes show that this method achieves a method detection limit(MDL)range of 0.3 to 1.5 mg/kg for these five elements,accompanied by a relative standard deviation(RSD)ranging from 0.65%to 1.4%and relative errors(RE)spanning from-1.6%to0.44%.These results demonstrate a low MDL,excellent precision,and high accuracy in the determination of these elements,thereby presenting a reliable and rapid digestion method for the assessment of total iron,manganese,aluminum,calcium,and magnesium in soil samples.
关键词
电感耦合等离子体光谱仪/土壤/石墨消解/金属元素Key words
Inductively Coupled Plasma Optical Emission Spectrometer/Soil/Graphite Digestion/Metal Elements引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据