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
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郝琳瑶, 步小敏, 牟臻, 浦伟, 王鑫, 付晓丽
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Determination of 28 kinds of polychlorinated biphenyls in snow based on gas chromatography-quadrupole tandem time-of-flight mass spectrometry
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Linyao HAO, Xiaomin BU, Zhen MU, Wei PU, Xin WANG, Xiaoli FU
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表3 不同加标水平下28种PCBs的回收率和相对标准偏差（n=3）
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Table 3 Recoveries and relative standard deviations （RSDs） （n=3） of 28 PCBs at three spiked levels
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| 化合物 | 加标水平 |
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| 0.2 μg·L-1 | 1 μg·L-1 | 10 μg·L-1 |
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| 回收率/% | RSD/% | 回收率/% | RSD/% | 回收率/% | RSD/% |
|---|
| TCMX | 50.6 | 5.7 | 53.7 | 3.9 | 48.2 | 6.4 | | PCB8 | 74.3 | 5.8 | 66.4 | 2.0 | 64.3 | 8.9 | | PCB18 | 68.1 | 7.5 | 60.5 | 2.7 | 60.2 | 9.9 | | PCB28 | 86.9 | 5.4 | 81.1 | 5.7 | 71.7 | 7.9 | | PCB44 | 75.4 | 13.1 | 65.6 | 0.9 | 63.5 | 5.3 | | PCB52 | 75.0 | 9.0 | 65.9 | 5.9 | 62.4 | 5.7 | | PCB66 | 93.6 | 6.7 | 88.4 | 7.9 | 70.1 | 3.1 | | PCB77 | 85.3 | 12.6 | 88.8 | 6.0 | 72.5 | 4.4 | | PCB81 | 100.4 | 8.2 | 95.4 | 4.7 | 72.6 | 3.4 | | PCB101 | 90.0 | 10.4 | 79.1 | 6.0 | 68.1 | 1.6 | | PCB105 | 96.0 | 12.0 | 94.0 | 5.6 | 71.8 | 2.1 | | PCB114 | 86.9 | 7.9 | 86.8 | 9.2 | 70.8 | 1.2 | | PCB118 | 92.4 | 9.2 | 83.8 | 8.7 | 72.4 | 4.0 | | PCB123 | 98.5 | 7.8 | 85.1 | 7.7 | 72.8 | 3.1 | | PCB126 | 105.8 | 12.1 | 78.0 | 9.2 | 72.5 | 13.2 | | PCB128 | 85.3 | 11.6 | 75.5 | 4.3 | 77.3 | 10.8 | | PCB138 | 91.9 | 11.7 | 92.7 | 11.1 | 76.1 | 4.3 | | PCB153 | 82.5 | 7.0 | 77.4 | 2.6 | 68.9 | 0.9 | | PCB156 | 98.8 | 13.7 | 70.0 | 5.0 | 74.5 | 7.8 | | PCB157 | 86.8 | 7.2 | 85.7 | 9.3 | 73.8 | 5.4 | | PCB167 | 65.2 | 4.5 | 71.6 | 6.5 | 74.2 | 9.3 | | PCB169 | 85.2 | 9.8 | 103.2 | 11.9 | 84.1 | 8.2 | | PCB170 | 81.1 | 4.8 | 83.9 | 8.9 | 78.3 | 2.6 | | PCB180 | 81.7 | 9.0 | 71.2 | 2.8 | 74.2 | 7.3 | | PCB187 | 88.1 | 5.4 | 64.5 | 7.3 | 66.4 | 12.9 | | PCB189 | 89.9 | 7.4 | 84.0 | 6.4 | 83.1 | 7.0 | | PCB195 | 83.0 | 9.1 | 71.6 | 9.8 | 81.1 | 1.5 | | PCB206 | 68.8 | 6.3 | 68.2 | 4.7 | 77.8 | 10.3 | | PCB209 | 68.6 | 12.4 | 66.0 | 3.0 | 76.4 | 0.3 |
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