电感耦合等离子体发射光谱法测定邯邢地区砂岩中多种元素分析方法  

Using Inductively Coupled Plasma Emission Method to Determine the Chemical Composition of Sandstone in Handan-Xingtai Region

作　　者：王生进[1] 董龙腾 韩夫强 刘春虎[1] 高会兵 李杨[1] 

机构地区：[1]河北省地矿局第十一地质大队,河北邢台054000

出　　处：《玻璃与搪瓷》2016年第2期14-18,共5页Glass & Enamel

摘　　要：根据邯邢地区砂岩性质及各元素含量的特点,建立了电感耦合等离子体发射光谱法测定邯邢地区砂岩中多种元素含量的分析方法。方法采取电感耦合等离子体发射光谱法一次性测定砂岩中杂质项,并计算杂质的总量,再用差减法计算得二氧化硅含量后,即得到砂岩的全分析结果。考察通过正交实验,采取7 m L氢氟酸,2 m L硝酸,1 m L高氯酸溶样,用电感耦合等离子体发射光谱测法同时测定砂岩中的8种元素（钙镁钾钠铝铁锰钛）含量。在最优化的条件下,用砂岩国家标准物质（GBW 03112）进行实验分析,元素的精密度（RSD,n=12）和相对误差在允许范围内,方法的检出限为0.000 9～0.09 mg/L。The inductively coupled plasma atomic emission spectrometry method was used to determine the various impurities in the sandstone and the total amount of impurities was obtained. The silica content was calculated by subtraction method. Through the orthogonal experiment,by taking 7 m L of hydrofluoric acid,2 m L of nitric acid and 1 m L of perchloric acid to solve the sample and using inductively coupled plasma emission spectrum method all the 8 elements（ calcium,magnesium,potassium,sodium,aluminum,iron,manganese,titanium） in the sandstone sample were determined simultaneously. Under the optimum conditions,the standard substance（ GBW 03112） of the sandstone was analyzed. The results show that the precision of the elements（ RSD,n = 12） and relative errors are within the allowable range,and the detection limit of the method is 0.000 9 ~ 0.09 mg / L.

关 键 词：砂岩 多元素分析 电感耦合等离子体发射光谱法 

分 类 号：TQ171.411[化学工程—玻璃工业]