GB 38507-2020定制16种VOC混标, Custom VOC Standard @2000 μg/mL in PT Methanol

USP 232高水平校准标准A,100μg/mL,2-5%硝酸,微量氢氟酸, USP 232 High Level Calibration Standard A,100 μg/mL in 2-5% Nitric Acid, tr Hydrofluoric acid

525方法用标准品, Method 525.2-Set of Individual Solutions

12种硝基酚类混标,2000 μg/mL溶于二氯甲烷(HJ 1150-2020), Custom Nitrated Phenols Mix @ 2000 μg/mL in Dichloromethane

带ISTD仲丁醇的D-3606校准套装, D-3606 Calibration Set with ISTD sec-butanol

碱性/中性萃取混合物3, 0.5 mg/mL 二氯甲烷溶液, Base/Neutral Extractables Mix 3,0.5 mg/mL in Dichloromethane

2-羟基阿特拉津, 2-Hydroxyatrazine,100 μg/mL in Methanol:Phosphoric acid (99:1)

标准品, cis-Permethrin,100 μg/mL in Acetonitrile

汞 AA 标准品,1000 μg/mL 溶于 10% 硝酸, Mercury AA Standard,1000 μg/mL in 10% Nitric acid

标准品, 2H,2H,3H,3H-Perfluorooctanoic Acid,2 μg/mL in Methanol