甲醇中6种酚类混标(标样)  Mixed label of 6 Phenols in Methanol (Standard sample)  1.2mL  

甲醇中戊二醛溶液标准物质  Standard substance for glutaraldehyde solution in methanol  1.2mL  

甲醇中13种酚类混标标准物质  There are 13 kinds of mixed phenolic reference materials in methanol  1.2mL  

甲醇中13种酚类混合溶液标椎物质  The mixed solution of 13 kinds of phenols in methanol is standard substance  1.2mL  

甲醇中2，4-二硝基苯酚溶液标准物质  Solution reference material for 2, 4-dinitrophenol in methanol  2mL  

甲醇中2，4-二硝基苯酚溶液标准物质  Solution reference material for 2, 4-dinitrophenol in methanol  2mL  

21种酚类混标标准品  21 kinds of mixed phenolic standards  1.2mL  

甲醇中21种酚类混合溶液标准物质  The standard material of 21 kinds of phenol mixed solution in methanol  1.2mL  

甲醇中乙醛溶液标准物质  Standard substance for acetaldehyde solution in methanol  1.2mL  

水中乙醛溶液标准物质  Aqueous acetaldehyde solution standard substance  1.2mL