GB 38508-2020定制7种VOC混标, Custom VOC Standard@1000 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

16种醛酮类混标,2000 μg/mL溶于乙腈(HJ 1154-2020), Custom Carbonyl Mix 2 @ 2000 μg/mL in Acetonitrile

润滑油基础油中的总芳烃和饱和烃, Total Aromatics and Saturates in Lube Basestocks

Diazald

N-甲基-N-亚硝基对甲苯磺酰胺

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