Investigation analysis of pollution of chlorate and perchlorate in infant formula
Investigation analysis of pollution of chlorate and perchlorate in infant formula.Quantitative determination by ultra performance liquid chromatography-tandem mass spectrometry(UPLC-MS-MS)and isotope internal standard,and analysis to the results.The detection rate of chlo-rate in infant formula was 49.8%,and the detection rate of perchlorate was 34.4%.The detection rate of chlorate was higher than that of perchlo-rate.The average exposure of chlorate and perchlorate in infant formula decreased with the increase of stage.The proportion of chlorate content of infant formula on the stage 1 and 2 exceeding limited value were both more than 10%,and the proportion of chlorate content of infant formula on the stage 3 exceeding limited value was less than 10%.The proportion of perchlorate content of infant formula on different stages exceeding limited value were all less than 10%.The proportion of chlorate content of infant formula on goat milk-based exceeding limited value was 22.1%,and the perchlorate content exceeding limited value was 23.2%.For infants of 0-12 months,the health risk of chlorate intake should be paid more atten-tion.The risk of perchlorate pollution was relatively low.But the chlorate and perchlorate pollution of infant formula on goat milk-based was more serious,which should be paid more attention.