标准品, ASTM D8305 Performance Mixture,Varied conc. by weight

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

标准品, Perfluoro(4-methoxybutanoic) acid,100 μg/mL in Methanol

标准品, Perfluoro(2-ethoxyethane)sulphonic acid,2 μg/mL in Methanol

标准品, Custom Impurities Mix 2 @ Varied Conc. In Acetonitrile

乙腈中29种农残混标(组2-符合GB23200.121), Custom Pesticide Standard，100 μg/mL in Acetonitrile

乙腈中29种农残混标(组5-符合GB23200.121), Custom Pesticide Standard，100 μg/mL in Acetonitrile

标准品, Laboratory Control Sample-Semi-Volatiles

定制11种SVOC混标1000 μg/mL溶于乙酸乙酯(GB5749), Custom Pesticide Standard @1000 μg/mL in Ethyl acetate

标准品, Custom ICP Standard @ 100 μg/mL in 95% water 5% Nitric acid tr Hydrofluoric acid