甲醇中10种气态制冷剂混标(符合HJ 1195-2021), Custom Refrigerants Standard @ 100 μg/mL in Methanol

3种醛酮类混标,2000 μg/mL溶于乙腈(HJ 1154-2020), Custom Standard @ 1000 μg/Ml in n-Hexane

4种氘代内标混标,2000 μg/mL溶于二氯甲烷(HJ 1189-2021), Custom Labeled Standard @ 2000 μg/mL in Dichloromethane