电热石墨炉分子吸收光谱测定工业水质中的卤化物

本文研究了利用电热蒸发石墨炉分子吸收法（ＭＡＳ）测定卤化物的优化条件，探索了不采用萃取，分离等措施，利用三阶段分步样法，应用钼涂层石墨管双原子分子吸收法，首次提出了ＡｌＸ（Ｘ＝Ｆ，Ｃｌ，Ｂｒ）－ＭＡＳ法测定地表水质中卤化物，用铂，铅，铁空心阴极灯作连续光源，使用次灵敏共振线进行测定，在实际分析中获得满意结果。

DETERMINATION OF HALIDES IN WATERS BY MOLECULAR ABSORPTION SPECTROMETRY WITH ELECTROTHERMAL EVAPORATION IN A GRAPHITE FURNANCE

This paper presents the study on the determination of handes (F-, Cl-, Br-) in waters by molecular absorption spectrometry (MAS). Without extraction separation, analyses were introduced by three step sampling method and a molybdenum-coated graphite furnance where diatoms of AlX (X=F, Cl, Br) were generated. Hollow cathode lamps of Pt,Ph and Fe were used as emission source to replace D2 are lamp. and their secondary resonance lines were selected for molecular absorption measurement. Experimental conditions were optimized. The proposed method has been successfully applied to real sample analysis.