原子吸收光度法测定钢铁及合金中的铌量  

The Determination of Niobium Content in Alloy and Steel by Flame Atomic Absorption Spectrometry

作　　者：潘伯春 俞膺浩[1] 

机构地区：[1]上海师范大学实验中心

出　　处：《光谱实验室》1995年第6期10-14,共5页Chinese Journal of Spectroscopy Laboratory

摘　　要：本法叙述一氧化二氮－乙炔火焰原子吸收光度法测定铌量，用鞣酸沉淀分离和在盐酸－氢氟酸介质中加入增感剂三氯化铝。灵敏度１２μｇ／ｍＬ／１％吸收，检出限６．０μｇ／ｍＬ。Describes a N_2O-C_2H_2 flame atomic absorption spectrometry for the determination of niobium content with tannic acid precipitationseparation and enhancement effect agent AlCl_3 solution added to the HCl-HF matrix solution.The sensitivity is 12μg/mL 1% absorption,the detection limit is 6μg/mL.

关 键 词：鞣酸 铌 钢铁 合金 原子吸收法 

分 类 号：O614.512[理学—无机化学] O675.31[理学—化学]