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

标准品, Perfluoro-3-methoxypropanoic acid,2 μg/mL in Methanol

标准品, Perfluoro-3-methoxypropanoic acid,100 μg/mL in Methanol

乙腈中25种农残混标(组10-符合GB23200.121), Custom Pesticide Standard，100 μg/mL in Acetonitrile

28种农残混标-组2,100μg/mL溶于乙腈(烟草检测适用), Custom Pesticide Standard,100 μg/mL in Acetonitrile

标准品, Pyriofenone,100 μg/mL in Methanol

定制3种有机锡内标混标,1000 μg/mL溶于甲醇(以有机锡阳离子计)(GB 20385.1-2021), Custom Organotin Standard @ Varied Conc. In Methanol

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

24种卤代烃混标,适用于DZ/T 0064.91-2021地下水分析方法, Custom VOC Standard @ 1000 μg/mL in PT Methanol-100%

7种邻苯二甲酸酯混标,1000 μg/mL 溶于甲醇, Custom Phthalate Standard in Methanol