Sample Submission

  • The users should fill up the form (downloadable from the 'Forms' page) and submit it with the sample
  • Each sample has to be listed separately.
  • Please specify the Chemical Constituents and  expected % of Carbon, Hydrogen, Nitrogen and Sulphur.
  • External samples will be analyzed anytime during the week at a fixed rate.


  • External users, please bring a draft in the name of  Registrar, IIT Madras  for the appropriate amount. If you are an internal user, please make sure that the payment will be made immediately after analysis.
  • Please note that if the account is not settled immediately it will not be possible to do further analysis.

The CHNS-O instrument is currently located in ACB-108A and you are welcome to visit the room after prior appointment



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