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绿柱石经氢氧化钠和过氧化钠熔融分解,电感耦合等离子体-原子发射光谱法同时测定绿柱石中的硅、铍、铝、钙、铁、锰、钛、镁、钾、磷等10种元素的含量。对试样分解方式、元素分析谱线、仪器工作条件选择和基体匹配等做了实验和讨论,确定碱加入量,在标准溶液中加入一定量熔剂、盐酸和主量元素进行基体匹配,以消除基体效应,各待测元素间无明显干扰。克服了传统方法测定周期长,化学处理操作繁杂等缺点。方法用于有证标准物质分析,结果和标准值一致,均在允许误差范围内;方法的精密度(RSD,n=12)为0.65%—3.69%;回收率为93%—106%。适于绿柱石中主、次、微量多元素分析。
Beryls are fused and decomposed by sodium hydroxide and sodium peroxide. Simultaneous determination of 10 kinds of beryl, aluminum, calcium, iron, manganese, titanium, magnesium, potassium and phosphorus in beryl by inductively coupled plasma atomic emission spectrometry Elemental content. Experiments and discussions were made on the sample decomposition method, the elemental analysis line, the instrument working conditions selection and the matrix matching. The amount of alkali added was determined. A certain amount of flux, hydrochloric acid and main elements were added to the standard solution for matrix matching to eliminate Matrix effect, no significant interference between the elements under test. Overcome the traditional method of determining the long cycle, chemical handling complex and other shortcomings. The method was applied to the analysis of certified reference materials. The results were consistent with the standard values and were within the allowable error range. The precision of the method (RSD, n = 12) was 0.65% -3.69% and the recovery was 93% -106%. Suitable for the main, secondary and trace elements in beryl.