摘要
采用电感耦合等离子体原子发射光谱法同时测定沉积岩样品中K、Na、Ca、Mg、Fe、Mn、Ni、V、Ga、Cu、Zn、Sr、Ba、Cr和B等15个元素。在应用混合酸处理样品的过程中,加入适量的甘露醇能够抑制硼的挥发。在优化选定的仪器条件中,15个元素的检出限为0.0010-0.032 mg/L。对岩石国家一级标准物质GBW 07105-GBW 07108进行检测,各元素的测定值与标准值吻合。方法的回收率为93.3%-106.0%,测定结果的相对标准偏差(RSD,n=10)均小于5.2%。
A method for the determination of 15 elements including K, Na, Ca, Mg, Fe, Mn, Ni, V, Ga, Cu, Zn, Sr, Ba, Cr and B in sedimentary rock samples by inductively coupled plasma-atomic emission spectrometry was developed. The sample was dissolved in mixed acids and an appropriate amount of mannitol was added to prevent boron from volatilization. Analytical spectnun lines were carefully selected and the instrumental operating conditions were optimized. The detection limits of the method for 15 elements were 0. 0010 -0. 032 mg/L. The method has been applied to the determination of these elements in National Standard Reference Materials including GBW 07105 - GBW 07108. The results obtained were in agreement with the certified values with recovery of 93.3% - 106. 0% and precision of less than 5.2% RSD （ n = 10）.
出处
《岩矿测试》
CAS
CSCD
2007年第3期230-232,共3页
Rock and Mineral Analysis
关键词
电感耦合等离子体原子发射光谱法
甘露醇
多元素同时测定
沉积岩
inductively coupled plasma-atomic emission spectrometry （ICP-AES）
mannitol
simultaneous determination of muhielements
sedimentary rock
