一种新颖的普及型离子色谱仪

A New Simple Ion Chromatograph

水文介绍一种新的离子色谱仪。系统中采用了单柱塞泵、膜式压力脉动缓冲器及纤维膜管抑制器。泵和主机实现了一体化,实际工作压力可达100kg·cm^(-2).仪器在较高灵敏度下仍有平稳的基线和良好的峰高重现性。在灵敏度为4ppm Cl^-,峰高大于80mm的情况下,1小时实测漂移为±0.75%;F^-、Cl^-、PO_4~3、NO_3^-、SO_4~2五种离子的变异系数分别为0.42、0.29、0.93、0.46、0.67。

A new ion chromatograph with single heart reciprocal pump,diaphram pulse damper and fiber suppresso. described.The pump and analyzer are integrated into one unit.The working pressure can reach 100 kg · cm^(-2).The base line and peak height reproducilbility are rather good at [high sensitivity.When the seniitivity is 4 ppm Cl^- and the peak height is larger than 80 uim,the measured drift is+0.75%/per hour.The RSD is 0,42.0.39,0.93,0.46,0.67 for determination of F,Cl^-,PO_4^(3-),NO_3^-,and SO_4^(2-) respectively.