ASTM D6228 – Determination of Sulfur Compounds in Natural Gas and Gaseous Fuels

Analyzer Description

1-valve, 1-capillary column, PFPD
Sample type:
Natural gas and gaseous fuels
Compounds Separated:
Hydrogen sulfide, carbonyl sulfide/sulfur dioxide composite, methyl mercaptan, ethyl mercaptan, dimethyl sulfide, carbon disulfide, isopropyl mercaptan, t-butyl mercaptan, n-propyl mercaptan, ethyl methyl sulfide, thiophene/2- butyl mercaptan composite, diethyl sulfide, n-butyl mercaptan, dimethyl disulfide, bromothiophene/diethyl disulfide composite, methylthiophene, 3-methylthiophene, phenyl mercaptan, benzothiophene
Lower detection limits:
0.05 ppm
Methods met:
ASTM D6228, Wasson-ECE W4427

Typical Chromatogram

FID Chromatogram

Key Features and Benefits

  • Gas chromatograph can be configured to contain additional applications.
  • Cryogenic cooling may be used to separate carbonyl sulfide and sulfur dioxide.
  • Fused silica lined tubing ensures repeatability and the lowest detection limits.
  • PFPD provides proportional response allowing uncalibrated peaks to be quantified using response factors from known peaks of similar structure.