We use gas std of 18 compounds from C1 Mercaptan to C7 mercaptan, CS2, H2S, Dimethyl Sulfide, diethyl sulfide (10 ppm each). Does SCD provide same response for all the compounds? Disulfides give double response? Is it required to heat the std before injecting?
I read in some article that if disulfides are present in the std, it will deteriorate the std. In that case is it preferred to have 2 different stds having monosulfur compounds in one std and disulfides in another std?
Kindly advise