Methylcentralite,100 μg/mL in Acetonitrile:Methanol (50:50)

N,N'-二甲基-N,N'-二苯脲

硝基取代苯混标B, Method 8330-Mix B ,1000 μg/mL in MeOH:AcCN (50:50)

3,4-Dinitrotoluene,1000 μg/mL in MeOH

3,4-二硝基甲苯

EPA方法8440-3种混标/总石油烃浓缩液套标, Total Petroleum Hydrocarbon Concentrate,Varied conc.

EPA方法200.7-2种金属校准混标, Multi-Method Calibration Std #3R,Varied conc. in 2-5% Nitric Acid, tr Hydrofluoric acid

EPA方法200.7-8种金属校准混标, Multi-Method Calibration Std #4R,Varied conc. in 2-5% Nitric Acid

ICP23种元素混标, ICP multi-element standard solution IV,1000 μg/mL in 1 mol/L Nitric Acid

ICP多元素标准品套标, ICP multi-element standard solution IX set

ICP23种元素混标, ICP multi-element standard solution X,Varied conc. in 1 mol/L Nitric Acid

GF AAS16种混标溶液XVIII, GF AAS multi-element standard solution XVIII,Varied conc. in 2-5% Nitric Acid