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

定制农药标准变浓的异辛烷50%甲苯50%, Custom Pesticide Standard-Varied Conc.Isooctane50%Toluene50%

定制16种 SVOC 混标, Custom SVOC Standard @ 1000 μg/mL in Hexane

21种挥发性有机物混标,30000ug/mL溶于甲醇, Custom VOC Stock Mix @ 30 mg/mL in PT Methanol

标准品, Custom PAH Standard @ 500 μg/mL in Methylene chloride-100%

标准品, Chromium,1000 μg/mL in 2-5% Nitric Acid

25种邻苯二甲酸酯混标,1000 μg/mL 溶于己烷, Custom Phthalate Standard in Hexane

Orthosulfamuron,100 μg/mL in Acetonitrile

Methacrifos,1000 μg/mL in Acetonitrile

定制混标, Custom Pesticide Standard,100 μg/mL,Acetonitrile-100%