EPA方法200.7-4种金属校准混标, Multi-Method Calibration Std #5R,Varied conc. in 2-5% Nitric Acid

农药22种混标, List 1-Pesticide Standard,500 μg/mL in Methylene chloride

ICP29种元素混标, ICP Multi-element Standard Solution VI,Varied conc. in 1 mol/L Nitric Acid, tr Hydrofluoric acid

icp元素混标 共23组分, ICP multi-element standard solution X,Varied conc. in 1 mol/L Nitric Acid

ICP多元素标准溶液XIII套标, ICP multi-element standard solution XIII set

ICP 多元素标准液 30种, ICP multi-element standard solution XXI for MS set

标准品, ASTM/EPA Gasoline Refinery Aromatics Calibration Standard,Varied conc. in Isooctane

ASTM D5769 3组份氯化内标混标, Chlorinated Internal Standards Mix,Varied conc. by %w/w

标准品, ASTM/EPA Gasoline Refinery Daily Quality Control Standard,Varied conc. by weight

正十二烷, n-Dodecane,1.5% w/w in Isooctane