固体进样石墨炉原子吸收光谱测定研究（Ⅱ）──镉的测定  

STUDY ON DIRECTLY DETERMINATION OF SOLID SAMPLE BY GRAPHITE FURNACE AAS (Ⅱ)──DETERMINATION OF CADMIUM

作　　者：马玉平[1] 战国利[1] 韩益青 

机构地区：[1]新疆分析测试中心

出　　处：《光谱学与光谱分析》1994年第5期79-84,共6页Spectroscopy and Spectral Analysis

摘　　要：采用自制的石墨炉微量固体进样装置，结合Ｌ＇ｖｏｖ平台、基体改进以及预热时通入空气等技术，直接测定了部分植物、粮食、土壤与沉积物中的痕量镉。初步解决了上述试样测定中的基体干扰、背景扣除等疑难问题。标样测定取得了满意的结果。变异系数６．２～１１．０％；回收率９３～１０５％。Using the device of micro solid sample in jection which was made by ourselves andCombined with the techniques of L'vov plateform, matrix modifier and alternate gas, thetrace cadmium in some plant, provision, soil and sediment has been directly determinated bygraphite furnace AAS. The problems of matrix interference and deducting background havebeen solved by selecting an appropriate matrix. The method is rapid, simple and sufficientlyprecise. The RSD is between 6. 2--11. 0% and recovery is about 93--105%.

关 键 词：固体进样 原子吸收光谱 镉 

分 类 号：O614.242[理学—无机化学]