chromaS

Technical Specifications

chromaS - H2S, COS, CS2, SO2, RSH
  • Compounds analysed:
    • H2S, Me-SH, Et-SH, Isopropyl-SH, Npropyl-SH, 2-butylSH, Terbutyl-SH, DMS, DES, DMDS, COS, CS2 …
  • Detection limits:
    • 4 ppb double Sulphur Compounds like DMDS, CS2 …
    • 7 ppb single Sulphur Compounds (H2S DMS …)
  • Detection range:
    • 4 ppb to 5 ppm (Low Range)
    • 100 ppb to 100 ppm (High Range)
  • Relative Standard Deviation:
    • RSD < 5% on concentration over 24hrs
    • RSD < 1% on Retention Time over 24hrs
  • Results:
    • Full storage of chromatograms & results
    • All analysed dates & times stamped individually
  • Cycle time:
    • 10 minutes in standard
    • Shorter cycle time depend on the application
  • Gas supply:
    • Carrier Gas – Air or N2 3 bar (5mlLmin) 1/8’’
    • Sample Inlet -1 Bar or ambient pressure (airmopump)
    • Detector – H2 at 2 Bar (70 ml/min) 1/8’’ – Air at 3 bar (80 ml/min) 1/8’’
    • Pneumatic valve 90 mL/min commutation

H2S, COS, CS2, SO2, RSH

Automated online analysis & monitoring of Sulphur Compounds: H2S / COS / CS2 / SO2 / RSH

Chroma S is a fully automatic isothermal gas Chromatograph for the analysis & monitoring of sulphur compounds.

Principle :

  • Continuous, uninterrupted sampling 
  • Sample is injected into column for separation
  • Controlled oven selects optimum temperature based on application
  • detection achieved by a sulphur specific photometric double flame detector

Features :

  • The double flame ensures no quenching occurs
  • Automatic linearization of compounds
  • Identification of compounds is based on their retention time (Elution from the column)
  • Automatic data validation as standard with the internal permeation tube

VISTACHROM ® software :
 Chromatotec developed software system allows :

  • Remote monitoring
  • Full traceability through archiving of results and QC
  • Set up and control of threshold alarms
  • Export of data MODBUS / MGS1 / 4-20mA /0-10V

Tests reports & Certifications