DTPA-CaCl_(2)-TEA浸取-电感耦合等离子体发射光谱法测定土壤中有效锌、锰、铁、铜  

DTPA-CaCl_(2)-TEA Leaching-Inductively Coupled Plasma Emission Spectrometry Determination of Available Zinc,Manganese,Iron and Copper in Soil

作　　者：郭媛 Guo Yuan(Jinduicheng Molybdenum Industry Co.,Ltd.,Shaanxi,714000)

机构地区：[1]金堆城钼业股份有限公司,陕西714000

出　　处：《当代化工研究》2024年第4期59-61,共3页Modern Chemical Research

摘　　要：本文以DTPA-CaCl_(2)-TEA浸提剂提取土壤中有效态铜、锌、铁、锰,以电感耦合等离子体发射光谱(ICP-AES)进行测定。对不同的提取温度进行探究,确定最佳提取温度为25℃±2℃。对空白溶液平行测定6次,以3倍标准偏差计算出有效铜、锌、铁、锰的检出限依次为0.024mg/kg、0.024mg/kg、0.030mg/kg、0.147mg/kg,通过对国家标准土壤样品GBW 07461(ASA-10)、GBW 07414a(ASA-3a)、GBW07460(ASA-9)进行验证,其准确度与精密度均可满足分析要求。Available copper,zinc,iron and manganese in soil were extracted by DTPA-CaCl_(2)-TEA and determined by inductively coupled plasma emission spectrometry(ICP-AES).Different extraction temperatures,and the optimal extraction temperature was 25℃±2℃.The detection limits of effective copper,zinc,iron and manganese were respectively 0.024 mg/kg,0.024 mg/kg,0.030 mg/kg,0.147 mg/kg by parallel determination of blank solution for 6 times and calculation of detection limits by 3 times standard deviation.The accuracy and precision of the national standard soil samples GBW 07461(ASA-10),GBW 07414a(ASA-3a)and GBW 07460(ASA-9)can meet the analysis requirements.

关 键 词：等离子体发射光谱 有效铜 有效锰 有效锌 有效铁 

分 类 号：X833[环境科学与工程—环境工程]