联苯胺&3,3'-二氯联苯胺, Benzidine &3,3'-Dichlorobenzidine,1000 μg/mL in Methanol

方法608-农药17种混标, Method 608-Performance Check Solution,Varied conc. in MeOH

多环芳烃混标(18组份), PAH Performance Check Solution,Varied conc. in AcCN

莠灭净/2-乙氨基-4-异丙氨基-6-甲硫基-1,3,5-三嗪, Ametryn,100 μg/mL in Methanol

三嗪除草剂标准品/11 组分, Method 619-Triazine Herbicides Mix,0.1 mg/mL in MeOH

p-Bromofluorobenzene ,2.0 mg/mL in MeOH

对溴氟苯

1,2-Dichlorobenzene-d4 ,0.2 mg/mL in MeOH

氘代邻二氯苯

4,4'-Dibromooctafluorobiphenyl,0.2 mg/mL in CH2Cl2

4,4-二溴八氟联苯

Pyridine-d5,2.0 mg/mL in CH2Cl2

氘代吡啶

11组分酚类化合物混标, Acid Extractables Mixture,20 μg/mL in MeOH