基于气相色谱-四级杆串联飞行时间质谱联用法测定积雪中28种多氯联苯

郝琳瑶, 步小敏, 牟臻, 浦伟, 王鑫, 付晓丽

Determination of 28 kinds of polychlorinated biphenyls in snow based on gas chromatography-quadrupole tandem time-of-flight mass spectrometry

Linyao HAO, Xiaomin BU, Zhen MU, Wei PU, Xin WANG, Xiaoli FU

表1 28种PCBs的保留时间、定性离子、定量离子及定量内标化合物

Table 1 Retention time， qualitative ions， quantitative ion and quantitative internal standard compound of 28 PCBs

化合物 保留时间/min 定性离子（m/z） 定量离子（m/z） 定量内标化合物 PCB8 9.973 223.9975/152.0629 221.9999 PCB77-d6 PCB18 11.051 257.9571/186.0236 255.9602 PCB77-d6 PCB28 12.437 257.9575/186.0237 255.9606 PCB77-d6 PCB52 13.468 219.9843/289.9212 291.9183 PCB77-d6 PCB44 14.071 219.9840/289.9211 291.9180 PCB77-d6 PCB66 15.473 219.9841/289.9214 291.9184 PCB77-d6 PCB101 16.266 253.9445/327.8767 325.8791 PCB77-d6 PCB81 17.172 219.9837/289.9208 291.9177 PCB77-d6 PCB77 17.520 219.9836/289.9212 291.9179 PCB77-d6 PCB123 18.237 253.9445/327.8764 325.8794 PCB77-d6 PCB118 18.369 253.9447/327.8760 325.8791 PCB77-d6 PCB114 18.696 255.9417/323.8823 325.8790 PCB77-d6 PCB153 19.117 289.9023/361.8374 359.8402 PCB77-d6 PCB105 19.205 253.9446/327.8765 325.8796 PCB77-d6 PCB138 20.010 289.9018/361.8373 359.8397 PCB156-d3 PCB126 20.364 253.9437/323.8816 325.8789 PCB156-d3 PCB187 20.526 323.8632/395.7982 393.8010 PCB156-d3 PCB128 20.894 361.8375/289.9021 359.8400 PCB156-d3 PCB167 21.025 289.9023/361.8375 359.8402 PCB156-d3 PCB156 21.750 289.9015/361.8368 359.8397 PCB156-d3 PCB157 21.908 289.9021/361.8374 359.8401 PCB156-d3 PCB180 22.319 323.8629/395.7975 393.8007 PCB156-d3 PCB169 23.058 289.9023/361.8376 359.8406 PCB156-d3 PCB170 23.253 323.8636/395.7990 393.8013 PCB156-d3 PCB189 24.281 323.8638/395.7989 393.8019 PCB156-d3 PCB195 24.686 357.8249/427.7629 429.7597 PCB156-d3 PCB206 26.600 461.7248/391.7865 463.7207 PCB156-d3 PCB209 27.588 499.6798/427.7436 497.6825 PCB156-d3