Trace Sulfur Analysis

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Trace Sulfur Analysis

Some sulfur compounds are known to be not only hazardous but also catalytic poisons. ppb sulfur analysis is conducted by gas chromatography. The Nexis SCD-2030 is a next-generation sulfur chemiluminescence detection system. The dramatically enhanced sensitivity and reliability, the excellent maintainability, and the automation functions, a first for the industry, will improve laboratory productivity.

Model Name Nexis GC-2030SCD1 Nexis GC-2030SCD2 Nexis GC-2030PFPD1 Nexis GC-2030PFPD2 Nexis GC-2030PFPD3
Reference Method ASTM D5504 ASTM D5623 ASTM-D6228 ASTM-D6228 ASTM-D6228
Type of Detector SCD SCD PFPD PFPD PFPD
Target Compounds Volatile sulfur compounds in Natural gas or similar gaseous mixture Sulfur compounds in Motor gasoline fuel or similar light petroleum liquids H2S, COS, SO2, mercaptans H2S, COS, SO2, mercaptans H2S, COS, SO2, mercaptans, aromatic sulfur compounds and sulfides
Others High selectivity and linearity for sulfur containing compounds and minimizes the quenching effects of hydrocarbons Very good linearity and repeatability for all sulfur compounds and excellent stability for the long-term analysis High selectivity for sulfur Linear, simplifies calibration Designed for process gas and gaseous fuels. High selectivity for sulfur Linear, simplifies calibration Designed for light petroleum liquids and gasoline Two types of capillary columns realize higher separation performance. Designed for light petroleum liquids and gasoline
Application Datasheet
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Model Name Nexis GC-2030FPD1 Nexis GC-2030TIB Nexis GC-2030SUL1 Nexis GC-2030SUL2
Reference Method ASTM-D6228 ASTM-D4735 - -
Type of Detector FPD PFPD FPD TCD
Target Compounds H2S, COS, SO2, mercaptans, aromatic sulfur compounds and sulfides Thiophene in benzene H2S, COS H2S, SO2
Others Micro-packed column can separate sulfide components and hydrocarbons effectively. High selectivity for sulfur Linear, simplifies calibration Suitable method for thiophene in refined benzene Designed for gaseous fuels Analysis time: 12 minutes One FPD channel Two valves/ four packed columns Analysis of H2S and SO2 in C2, C3, and C4
Application Datasheet
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GC-2014 system is also available for some applications.

 

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Analysis of Sulfur Compounds in Hydrocarbon Matrices by ASTM D5504, D5623, and D7011 with a new GC-SCD

 

Reliable Sulfur Speciation by A Newly Designed GC SCD

 

 

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