In each graphitecolumn there is a through hole in which a technological channel is placed.
在每个石墨列有一个通孔，其中一个技术通道上。
2
A method for the determination of Pd and pt in catalyst by graphite furnace atomic absorption spectrometry is introduced, sulfhydryl cotton column is used to separate interferential elements.
介绍应用石墨炉原子吸收法测定催化剂中钯和铂的分析方法，及可将干扰元素去除的巯基棉柱分离法。
3
By column adsorption experiment, the ability of the expanded graphite removing the SO2 through adsorption was analyzed.