Because of the negative effect H₂S has on the quality of wines, it is crucial that we can determine its concentration. There are many methods for its determination such as colorimetric analysis with UV-Vis spectrometry, detection with chemoluminescence, gas and liquid chromatography with mass spectrometry and high performance liquid chromatography with fluorescence detection, but they are not all suitable for detection of H₂S in wine samples. Recently the scientists have discovered a new cheap and stable derivatization reagent N-(3-iodo-2-oxopropyl)pyren methanamine. Coupled with the derivatization of H₂S and high performance liquid chromatography with fluorescence detection, the new reagent can enable selective determination of H₂S in wine samples.
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