电荷注入检测器-端视等离子体原子发射光谱中分析动态范围  

Analytical Dynamic Range in Atomic Emission Spectrometry With Axially Viewed Plasma and Charge Injection Array Detector

作　　者：辛仁轩[1] 赵玉珍[2] 施洪钧[2] 

机构地区：[1]清华大学核能研究院,北京100084 [2]中国科学院物理研究所,北京100080

出　　处：《分析化学》1998年第1期44-47,共4页Chinese Journal of Analytical Chemistry

摘　　要：实验研究了电荷注入检测器（ＣＩＤ）－端视电感耦合等离子体（ＡＶＩＣＰ）光谱中分析动态范围，测量了Ａｌ、Ｂ、Ｂｅ、Ｃｄ、Ｃｕ、Ｃｏ、Ｆｅ、Ｌｉ、Ｓｒ、Ｖ、Ｋ、Ｓｒ等１２个元素的不同光谱级次的４４条分析工作曲线。结果表明，分析动态范围为４～５个数量级，无明显自吸收，Ｌｏｍａｋｉｎ公式的自吸收系数ｂ＝１，说明在ＣＩＤ－ＡＶＩＣＰ光谱中有较宽的分析动态范围。In this paper the analytical linear ranges of calibration graphs for a new type emission spectrometer with two dimensional charge injection detector and axially viewed plasma were investigated. Calibration graphs for Al, Cd, Cu, Co, Fe, Li, Sr, V, K, Sr, Be, B in different spectral order were examined. The results showed that linear ranges are over four orders of magnitude and no self-reversal or self-absorption is found under concentration at 100-1000 mg/L. The self-absorption coefficient b for Lomakin equation has been determinad and the value is approximately equal to 1.

关 键 词：电感耦合 等离子体光谱 分析动态范围 CID 

分 类 号：O657.3[理学—分析化学]