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用于气体中痕量硫分析的硫选择性检测器对比
Abstract:
比较了分析ppb 级硫化物的四种检测器。使用动态混合系统制备了包括H2S, COS, CS2 和选择性硫醇的八种低含量的硫化物，将硫化物混至氦气，乙烯，丙烯和二氧化碳中。应用选择最佳检测器的标准依据包括灵敏度，选择性，稳定性，易于操作性等多种因素，讨论了最佳检测器选择的指导原则。本研究中使用的检测器包括原子发射光谱检测器，火焰光度检测器，脉冲火焰光度检测器，和硫化学发光检测器。
A comparison of four selective detectors for analysis of single-digit ppb level sulfur is described. A dynamic blending system is used for point of use preparation of low level gaseous mixtures of eight sulfur compounds including H2S, COS, CS2 and selected mercaptans in helium, ethylene, propylene, and carbon dioxide. The criteria to consider for selecting the best detector for an application depends on many factors including, sensitivity, selectivity, stability, and ease of use. Guidelines for making the best detector choice are discussed. The Atomic Emission, Flame Photometric, Plused Flame Photometric, and Sulfur Chemiluminescent detectors are included in the study.
Keywords:
AED, FPD, SCD, PFPD, sulfur detection, H2S, COS, mercaptans, ethylene, propylene, carbon dioxide, dynamic blending, gas analysis, gas calibration, selective detectors, volatiles interface, GSV, hydrocarbon processing
AED，FPD，SCD，PFPD，硫检测，H2S，COS，硫醇，乙烯，丙烯，二氧化碳，动态混合，气体分析，气体校正，选择检测器，挥发性进样口，GSV，烃加工
Publication Number:
5988-2426CHCN
Last Updated:
11/2/2009
Number of Pages:
8
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