Application Datasheet

Micro GC Fusion® Hydrogen Sulfide Applications Datasheet
Introduction
This datasheet highlights the three modules used for a variety of hydrogen sulfide (H2S) applications, the 12 m RT-U-Bond, the 20 m
Rxi-1ms, and the 12 m RT-Q-Bond.
The method parameters listed on the chromatograms can be used as a starting point for creating a method and can be adjusted to ensurethat all compounds are fully separated. The exact retention times vary from GC to GC, but the compound order remains the same.

Chromatograms
12 m RT-U-Bond large volume injector for H2S in biomethane
Method Parameters

4% CO2

4 ppm H2S

3 ppm COS

Injection time............................60 ms
Enhanced injection....................On, 30 psi
Injector temperature.................90°C
TCD...........................................70°C
TCD delta..................................5°C
Column pressure.......................25 psi
Data rate..................................25 Hz
Column temperature................60°C (120s)
Sample pump time...................5 s
Sample inlet:.............................Disabled

20 m Rxi-1ms large volume injector for H2S in biomethane
Balance
Method Parameters

air/methane
12 ppm H2S

Injection time.....................100 ms
Enhanced injection.............OffInjector temperature..........80°C
TCD....................................70°C

10% CO2
9% ethane

TCD delta...........................5°C
Column pressure................50 psi
Data rate...........................50 Hz
Column temperature.........50°C (100s)
Sample pump time............30 s

6% propane

Sample inlet........................80°C

1/3

dibj31a1 Micro GC Fusion Hydrogen Sulfide Applications Datasheet

Application Datasheet

12 m RT-Q-Bond variable volume injector for H2S in landfill gas
44% CO2

Method Parameters

Injection time.........................20 ms
Enhanced injection.................OffInjector temperature..............90°C
TCD........................................70°C
TCD delta...............................5°C
Column pressure....................18 psi
Data rate...............................100 Hz

1.6% H2S

Column temperature..............70°C (75s)->175°C (50s)
Ramp rate..............................2°C/s
Sample pump time................20 s
Sample inlet:...........................90°C

20 m Rxi-1ms large volume injector for H2S in landfill gas

Method Parameters

Balance air/methane

Injection time.....................100 ms

41% CO2

Enhanced injection.............Off1000 ppm H2S

Injector temperature..........90°CTCD....................................70°C
TCD delta...........................5°C
Column pressure................45 psi
Data rate...........................50 Hz
Column temperature.........50°C (100s)
Sample pump time............15 s
Sample inlet........................90°C

12 m RT-Q-Bond fixed volume injector for percent H2S in natural gas
Method Parameters

86% Methane

Injection time.....................35 ms

4.5% Ethane

Enhanced injection.............OffInjector temperature..........90°C
TCD....................................70°C

1.5% N2

TCD delta...........................5°C
Column pressure................25 psi

2% Propane

Data rate...........................25 Hz1% H2S

Column temperature.........60°C (50s)->100°C (15s)...........................................100°C -->210°C (35s)
Ramp rate.........................1°C/s, 1.5°C/s

0.08% CO2

Sample pump time............45 s
Sample inlet:.......................90°C

2/3

dibj31a1 Micro GC Fusion Hydrogen Sulfide Applications Datasheet

Application Datasheet

12 m RT-Q-Bond fixed volume injector for ppm H2S in natural gas
Method Parameters

75% Methane

Injection time.....................35 ms

8% CO2

Enhanced injection.............OffInjector temperature..........90°C
TCD....................................70°C

10% EthaneTCD delta...........................5°C

90 ppm H2S

Column pressure................23 psi
Data rate...........................100 Hz
Column temperature.........60°C (40s) ->120°C (0s)...........................................120°C ->210°C (50s)
Ramp rate.........................1°C/s, 1.5°C/s
Sample pump time............10 s
Sample inlet........................100°C
ISC purge time...................7s
ISC flow rate.....................High

dibj31a1©2020

1.75% N2
4.4% Propane