N-Nitrosodimethylamine, or NDMA, can be formed during the treatment of drinking-water. Concentrations of NDMA in drinking-water have been measured up to 40 ng/litre, although lower concentrations are more common.
Selected Ion flow Tube Mass Spectrometry (SIFT-MS) is a real-time volatile organic compounds (VOCs) analyser. It has been shown to be suitable for a diverse range of applications, and when used in combination with the GERSTEL MPS, enables very rapid sample headspace analysis.
Maintaining the quality of herbal based liquors is an important factor in their production. Slight differences in the ingredients of these beverages can drastically change the taste.