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

标准品, Custom SVOC Standard,100 μg/mL,Methylene chloride-100%

定制29种VOC混标2000 μg/mL溶于甲醇(天津地标 DB 12/524-2020), Custom VOC Standard @ 2000 μg/mL in PT Methanol

标准品, Custom Pesticide Standard @ 100 μg/mL in Methanol

Azadirachtin,100 μg/mL in Acetonitrile

标准品