Determination of 5 odorous compounds in water by GC-MS/MS using purge-and-trap technique

In recent years, odor incidents of drinking water keep happening in the world, odor substances in water become the hotspot of social attention. Research shows that most of the odorous substances in drinking water are microbial metabolites, such as 2-methylisoborneol (2-MIB) and geosmin (GSM), etc., the olfactory threshold concentration of such materials is very low, about 10 ng/L. The drinking water health standards of China (GB5749-2006) clearly defined MIB and GSM in drinking water should not exceed 10 ng/L. The objectives of the current studies were to develop a selective and sensitive GC-MS/MS method to determine of odor substances in water.