Dioxins in Chinese technical pentachlorophenols

Abstract For the first time, PCDDs and PCDFs were determined in China-made technical pentachlorophenol (PCP) as contaminants of commercial products. The MS / MS method can be used in direct analysis of dioxins at sub-ppm level in the PCP samples without pretreatment. The establishment of this method is helpful to the survey of sources of dioxins in China.