SP-02气相色谱仪是早期研制的一种简易型产品,具有结构简单、性能稳定、拆卸方便、耗电小等优点.不足之处是气路的死体积大,严重影响分离效能;控温精度较差;信号输出无精密衰减等.我们针对这些问题,作了以下几点简单改进,经过五年使用,证明效果较好,可以满足一般分析要求. SP-02 gas chromatograph is a simple type product developed in the early stage, which has the advantages of simple structure, stable performance, convenient disassembly and low power consumption, etc. The disadvantage is that the dead volume of the gas passage is large and the separation performance is seriously affected. The temperature control The accuracy is poor, the signal output is not attenuated, etc. For these problems, we made the following simple improvements: after five years of use, we proved that the effect is better and the general analysis requirements can be met.