ICP-AES测定海洋沉积物中的硼  

Determination of boron in marine sediment samples by ICP-AES

作　　者：辛文彩[1] 林学辉[1] 徐磊[1] 

机构地区：[1]青岛海洋地质研究所,青岛266071

出　　处：《现代仪器》2011年第5期91-92,共2页Modern Instruments

摘　　要：利用HF-H_3PO_4-HNO_3-HClO_4四酸溶矿,ICP-AES测定海洋沉积物中的硼(B)。采用电热板加热进行封闭溶矿,通过加入H_3PO_4有效地抑制B的挥发损失。在最佳条件下硼的检出限为0.0046μg/mL。用海洋沉积物标准物质对方法进行精密度和准确度验证,测定值与标准值吻合,精密度小于5%,回收率在91%～96.5%之间。结果表明本方法简便、快速、测定精度高、实用性强。A method for the determination of boron in Marine Sediment Samples by Inductively Coupled Plasma Atomic Emission Spectrometry is established. The samples were decomposed by mixed acid of HF-H3PO＋-HNO3-HCIO4 in a pressurized acid digestion system and the addition of H3PO4 avoid the volatilization of Boron effetely. In the given conditions, the detection limit of Boron was 0.0046μg/mL. Several marine sediment reference materials were used to verify the accuracy and precision of the method, .According to the results, the measured values was in accordance with the certified values, and the recovery rate was in the range of 91%-96.5%. It showed that the method was simple, rapid and accurate with important application.

关 键 词：电感耦合等离子体原子发射光谱(ICP-AES)海洋沉积物 硼 封闭溶矿. 

分 类 号：P736.21[天文地球—海洋地质]