亚老哥�?262, Aroclor 1262

亚老哥�?262, Aroclor 1262,35 μg/mL in MeOH

亚老哥�?268, Aroclor 1268,100 μg/mL in MeOH

亚老哥�?268, Aroclor 1268,500 ppm w/w in Transformer oil

PCB校准套标, Congener Calibration Set

CCME保留时间标记混标, CCME Retention Time Marker,2000 μg/mL in Methanol

4-氯苯基苯基醚, 4-Chlorophenyl phenyl ether

4,4'-Dichlorophenyl ether

二恶英结构相似的PCB混标(14种组�?, Dioxin-Like PCB Congener Level 6,2 ng/mL in Nonane

二恶英结构相似的PCB混标(14种组�?, Dioxin-Like PCB Congener Level 4,0.5 ng/mL in Nonane