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１引言气相色谱－原子发射光谱法（ＧＣ－ＡＥＤ）提供了一种灵敏度高、选择性好的方法，它能够进行多元素多通道分析．其原理是将色谱分离出的分子流出色谱柱后进入等离子体腔，等离子体（氦等离子体）具有很高的电离温度（５００～６０００Ｋ），它能够使分子裂解成原子并被
1 Introduction GC-AED provides a highly sensitive and selective method for multi-element, multi-channel analysis. The principle is that chromatographic separation of molecules out of the column into the plasma chamber, the plasma (helium plasma) has a high ionization temperature (500 ~ 6000K), it can make the molecules cracked into atoms and was