土壤易溶盐浸提液中硫酸根和硝酸根的测定  

Determination of Sulfate and Nitrate Dissolvable Salts in Soil Samples

作　　者：贾亮亮[1] 段媛媛[1] JIA Liang-liang;DUAN Yuan-yuan(Institute of Hydrology and Engineering Geological Prospecting Hebei Geological Mineral Bureau, Shijiazhuang 050021, Hebei China)

机构地区：[1]河北省地矿局水文工程地质勘查院,河北石家庄050021

出　　处：《分析测试技术与仪器》2016年第4期265-268,共4页Analysis and Testing Technology and Instruments

基　　金：石家庄市城市地质调查评价专项资金(2012995391)

摘　　要：对不同地区不同深度的土壤进行前期预处理,在最佳试验条件下,应用离子色谱法测定土壤浸提液中硫酸根和硝酸根的含量,测定的相对标准偏差分别为1.9%和3.0%,加标回收率SO42-90.0%~100.0%、NO3-93.0%~101.0%.样品预处理操作简单,方法灵敏度和准确性高,结果稳定性好,检出限低,能满足土壤环境样品检验的要求.Soils from different places and depths were dissolved in water, and under the optimal conditions, the contents of sulfate and nitrate were determined by ion chromatography. The results showed that: the relative standard deviations were 1. 9% and 3. 0%, the recoveries of sulfate and nitrate were 90. 0% ~100. 0% and 93. 0% ~101. 0%, respectively. The method is simple and rapid. The precision and accuracy are in accordance with the requirement of sulfate and nitrate determination for soil test.

关 键 词：土壤 离子色谱法 硫酸根 硝酸根 

分 类 号：O657.7[理学—分析化学]