One of the measurements about which I am frequently asked is the analysis of triazine-based hydrogen sulfide scavengers. Why? Triazine compounds are widely used, yet they are not easy to measure, either during production or during their application in the field. Hydrogen sulfide is a corrosive, hazardous gas. It can build-up in the headspace of a tank, creating a very hazardous situation for workers. It can affect “asset integrity”—in other words, cause corrosion and equipment failures. In the presence of sulfate-reducing bacteria, naturally occurring sulfate is reduced to H2S. And the world’s supplies of oil are on a continuous trend towards higher sulfur content.