多环芳烃混标, PAH Mix 1,Varied conc. in Acetonitrile

多环芳烃混标4, PAH Mix 4,Varied conc. in Acetonitrile

空气检测DNPH混标 14组分, Air Monitoring Aldehyde-DNPH Mix 2,Varied Concentration in Acetonitrile

农残混标, Pesticide Mix 23,10 μg/mL in AcCN

杀虫剂混标24,6 组分, Pesticide Mix 24,Varied conc. in Cyclohexane

PCB 14种混�?18/28/31/44/52/101/118/138/149/153/170/180/194/209), Congener Calibration Mix,10 μg/mL in Isooctane

多氯联苯8种混�? Congener Calibration Mix #23,10 μg/mL in Isooctane

标准�? ANALT-B Quality Control Standard,Varied conc. in 2-5% Nitric Acid

标准�? ICV-7 Quality Control Standard,Varied conc. in 2-5% Nitric Acid

7500系列 PA Tuning 2, 7500 Series PA Tuning 2,Varied conc. in 10% Hydrochloric acid, 1% Nitric acid, tr Hydrofluoric acid