HH一sulfide-V 硫化物检测填充色谱柱

浩瀚色谱（山东）应用技术开发有限公司建立了利用二维气相色谱中心切割技术与双检测器相结合,测定硫磺回收加氢过程气微量硫化物的分析方法。目标化合物经预柱分离进入热导检测器,同时通过辅助电子气路控制系统压力变化设定阀切换时间,将目标化合物切入脉冲火焰光度检测器进行检测。确定了加氢过程气中H2S、SO2、COS、CH3SH、C2H5SH、CS2在柱切换与不切换时的保留时间,建立了双柱、双检测器定性和定量分析方法。该方法进行加氢过程气的分析,目标化合物相对标准偏差RSD<1.0%,低检出限<1×10-6(体积分数),线性相关系数R≥0.999 9。该方法将常量硫化氢与微量硫化物完全分离,节省了H2S预处理步骤,解决了H2S与微量SO2、微量有机硫共存下硫形态的准确定量分析问题

名称：硫化物测定专用柱

型号：HH一sulfide-V

规格：0.475m*3mm

高使用温度：230°C

编号：20230401007

硫化物检测填充色谱柱 测试谱图：





Sulfide detection packed chromatographic column

Detailed information of sulfide detection packed chromatographic column:



Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has established an analytical method for the determination of trace sulfides in sulfur recovery and hydrogenation process gas by combining two-dimensional gas chromatography center cutting technology with dual detectors. The target compound is separated by a pre column and enters the thermal conductivity detector. At the same time, the target compound is cut into the pulse flame photometric detector for detection through the auxiliary electronic gas path control system pressure change setting valve switching time. The retention time of H2S, SO2, COS, CH3SH, C2H5SH, and CS2 in the hydrogenation process gas was determined with and without column switching, and a dual column and dual detector qualitative and quantitative analysis method was established. This method is used for the analysis of hydrogenation process gas, and the relative standard deviation (RSD) of the target compound is<1.0%, with a minimum detection limit of<1 × 10-6 (volume fraction), linear correlation coefficient R ≥ 0.999 9. This method completely separates constant hydrogen sulfide from trace sulfide, saving H2S pre-treatment steps and solving the problem of accurate quantitative analysis of sulfur forms under the coexistence of H2S, trace SO2, and trace organic sulfur





Name: Special Column for Sulfide Determination



Model: HH - sulfide V



Specification: 0.475m * 3mm



Maximum operating temperature: 230 ° C



No.: 20230401007






Sulfide detection packed chromatographic column test spectrum: