摘要
由于现行标准中没有直接针对含石膏钾盐样品分析的方法,同时没有国家一级有证标准物质进行质量监控,因此在测定含石膏钾盐样品时较为困难。为提高含石膏盐样品分析结果的准确度、精密度,采用不同的溶矿温度、称样量、以及放置时间对含石膏钾盐样品溶解方法进行实验。得出在称样量为0.5000 g、水温80℃、放置时间为24 h时,用电感耦合等离子体发射光谱法测定,通过样品中各组分百分数加和、溶液中元素阴阳离子平衡以及加标回收实验进行数据质量监控。实验结果满足《地质矿产实验室测试质量管理规范》对钾盐样品分析质量的要求。为钾盐勘查提供准确的数据支撑。
As there is no direct method for the analysis of gypsum-containing potassium salt samples,and there is no national-level certified reference material for quality monitoring,it is difficult to determine gypsum-containing potassium salt samples.In order to improve the accuracy and precision of sample analysis,different ore melting temperature,sample size and placement times were used to determine on the solution method of gypsum rock salt samples.The results show that the sample size is 0.5000 g,the water temperature is 80℃,and the placement time is 24 hours,the inductively coupled plasma emission spectrometry is used to determine the quality of the samples in the sample,data quality monitoring by adding the percentage of each component in the sample,the elemental anion and cation balance in solution,and the standard addition recovery experiment.The testing results meet the requirements for the quality analysis of potash samples in the quality management standard for geological and mineral laboratories.The accurate data support is provided for potassium salt exploration.
作者
王洋
张露露
王艳超
张晶
WANG Yang;ZHANG Lulu;WANG Yanchao;ZHANG jing(Geological Research Institute,China Chemical Geology and Mine Bureau,Zhuozhou,Hebei 072750,China;Shandong Guangxin Engineering Test and Inspection Group Co.Ltd.,Jinan,Shandong 250000,China)
出处
《中国无机分析化学》
CAS
2019年第6期35-40,共6页
Chinese Journal of Inorganic Analytical Chemistry
基金
中国地质调查局西部地区钾盐矿产远景调查评价项目(121201103000150011)
关键词
含石膏盐
溶矿温度
称样量
放置时间
质量监控
gypsum rock salt
ore dissolving condition
sample weight
standing time
quality control
