多氯联苯
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土壤中18种多氯联苯PCBs质控样品（HJ 743-2015）
1 2,4,4-三氯联苯 2,4,4-trichlorobiphenyl (BZ# 28)? [7012-37-5] 16-24g/kg 2 2,2,5,5-四氯联苯 2,2,5,5-tetrachlorobiphenyl (BZ# 52)? [35693-99-3?] 16-24g/kg 3 2,2,4,5,5-五氯联苯 2,2,4,5,5-pentachlorobiphenyl(BZ#101) [37680-73-2] 16
