超声雾化和气体发生进样微波诱导等离子体原子发射光谱法测定痕量碘  

DETERMINATION OF IODINE BY MICROWAVE INDUCED PLASMA ATOMIC EMISSION SPECTROMETRY USING ULTRASONIC NEBULIZATION AND GAS GENERATION FOR SAMPLE INTRODUCTION

作　　者：张金生[1] 李丽华[1] 张寒琦[1] 叶冬梅[1] 金钦汉[1] 

机构地区：[1]抚顺石油学院应用化学系,吉林大学化学系

出　　处：《光谱学与光谱分析》1996年第4期56-63,共8页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金

摘　　要：本文用Ａｒ和ＨｅＭＩＰＡＥＳ测定水溶液中的碘。样品经超声雾化和气体发生后引入等离子体。考查了Ａｒ和ＨｅＭＩＰ中碘的发射光谱特性和一些实验参数对碘发射强度的影响。当用超声雾化引入样品时，用Ａｒ和Ｈｅ作工作气体，检出限分别为０．１２和０．０６μｇ／ｍｌ，当用气体发生引入样品时，用Ａｒ作工作气体，检出限为０．０６４μｇ／ｍｌ，相对标准偏差小于５％。In this paper,the determination of iodine by Ar and He MIPAES has been studiedin detail. Ultrasonic nebulization and gas generation have been employed as a means of sample introduction into the MIP. The emission spectroscopic behaviors of iodine in Ar and HeMIP were investigated. The major factors affecting emission intensities of iodine were examined in detail. When ultrasonic nebulization was used, the detection limits for iodine with Arand He as the carrier gas were 0.12 and 0. 06μg/ml, respectively. When gas generation wasused, the detection limit for iodine with Ar as the carrier gas was 0.064μg/ml.The relativestandard deviation was less than 5%.

关 键 词：微波诱导 等离子体 超声雾化 碘 原子发射光谱 

分 类 号：O613.44[理学—无机化学] O657.31[理学—化学]