EPA方法680-5种混标, PCB Locator Mix,Varied conc. in Isooctane

废水中多环芳烃混标(套标,5*1mL,8组分), PAH Mix for Waste Water,Varied conc. in Acetonitrile

1,2-Dibromotetrafluoroethane ,0.2 mg/mL in MeOH

1,2-二溴四氟乙烷

3-甲基磺酰基-2,2',5,5'-四氯联苯, 3-Methylsulfonyl-2,2',5,5'-tetrachlorobiphenyl,50 μg/mL in Isooctane

3-甲基磺酰基-2,2',3',4',5,5',6-七氯联苯, 3-Methylsulfonyl-2,2',3',4',5,5',6-heptachlorobiphenyl,50 μg/ml in Isooctane

4-甲基磺酰基-2,2',3',4',5-五氯联苯, 4-Methylsulfonyl-2,2',3',4',5-pentachlorobiphenyl,50 μg/ml in Isooctane

4-甲基磺酰基-2,2',3',4',5,5',6-七氯联苯, 4-Methylsulfonyl-2,2',3',4',5,5',6-heptachlorobiphenyl,50 μg/ml in Isooctane

VOC20种混标, Discretionary Aromatic Volatiles Mix,50 μg/mL in MeOH

VOC14种混标, Volatile Organic Contaminants-Mix 2,50 μg/mL in Methanol

残留溶剂标准2级混合物A, Residual Solvent Standard Class 2 Mix A,Varied conc. in DMSO