偏硼酸锂熔矿-超声提取-电感耦合等离子体发射光谱法测定岩石水系沉积物土壤样品中硅铝铁等10种元素

Determination of 10 Elements including Silicon, Iron and Aluminum in Rock, Stream Sediment and Soil Samples by ICP-AES with Lithium Metaborate Fusion and Ultrasonic Extraction

摘要: 采用偏硼酸锂熔矿分解样品,超声波振动提取,电感耦合等离子体发射光谱法同时测定同一份溶液中的硅、铝、铁、钙、镁、钾、钠、磷、锰、钛等组分.通过对岩石、水系沉积物和土壤国家一级标准物质测定验证,方法的准确度、精密度能够满足样品中各元素定量分析的要求.

Abstract: A method for the determination of 10 elements, including Si, Al, Fe, Ca, Mg, K, Na, P, Mn and Ti in rock, stream sediment and soil samples by inductively coupled plasma-atomic emission spectrometry (ICP-AES) was reported. Samples were decomposed with lithium metaborate and dissolved with ultrasonic extraction. The sample solution was then determined by ICP-AES. The method has been applied to the determination of these 10 elements in National Standard Reference Materials with satisfactory results. The method is suitable for quantitative analysis of multielements in rock, stream sediment and soil samples.