抄録
In recent years, adverse effects on the environment caused by the tire rubber additives listed up as PRTR chemicals has become a great concern. Therefore, it is important to evaluate the fate and behavior of these chemicals in the environment. In this study, the effects of analytical conditions on the stability and extraction recoveries of them in the environmental samples were investigated to establish simultaneous analytical methods of these compounds.
Four hour ultrasonic extraction bellow 40°C was found effective to extract the tire rubber additives from tire rubber particles. Tire rubber additives contained in the atmosphere particles were stable after 4days aeration, their recovery rates were over 87%. Dehydration of solid phase cartridges for the analysis of water samples by centrifuge was more effective than N2 gas purge method. In order to obtain sufficient recovery rates, water samples should be adjusted at pH6∼8, preserved in cool and dark place and extracted on the sampling day. Both the recovery rates of tire rubber additives in pure and river water were over 85%. Clean up with Florisil cartridge was necessary for the analysis of these chemicals in sediments by LC/MS/MS to get high peak intensity. The recovery rates of tire rubber additives in sediments were over 91%.
