硼酸甲酯蒸馏分离ICP－AES法测定高温合金中微量硼  

Determination of Trace Amounts of Boron in Superalloy by Inductively Coupled Plasma Emission Spectrometry Using Methyl Borate as Distillate

作　　者：李志波[1] 蒋重熙[1] 

机构地区：[1]中国科学院金属研究所20室

出　　处：《光谱实验室》1995年第6期1-4,共4页Chinese Journal of Spectroscopy Laboratory

摘　　要：本文研究了复杂高温合金中微量硼的测定。采用对流型蒸馏装置将硼以硼酸甲酯的形式蒸馏出来，将碱性的回收溶液蒸发至干，稀释至２５ｍＬ容量瓶中，用ＩＣＰ－ＡＥＳ法测定。通过各种条件实验，确立了最佳测定条件，得到了满意的结果。本方法可测０．０００１％－０．０２％的硼，对０．０００２３５％的硼ＲＳＤ为５．１２％。In this paper,it has been studied for the determination of microamount of boron in the complex superalloy.Boron was separated by distillation as methyl borate.The solution of methyl borate was evaporated completely at 85±5℃,25mL of water was added to dissolve the residue and was determined by ICP-AES.By all kinds of the experiment,estabished the optimum factors of the determination,it's even geton well the resuls.This method can determine for the steel samples containing from 0.0001% to 0.02% boron,the coefficient of variation at 0.000235% level was 5.12%.

关 键 词：合金 硼 ICP-AES 硼酸甲酯 

分 类 号：O613.81[理学—无机化学] O657.31[理学—化学]