水质挥发酚(标样)  Water quality volatile phenol (standard sample)  20mL  

水质挥发酚(标样)  Water quality volatile phenol (standard sample)  20mL  

水中挥发酚成分分析标准物质  Standard material for analysis of volatile phenols in water  20mL  

水中挥发酚成分分析标准物质  Standard material for analysis of volatile phenols in water  20mL  

水中挥发酚成分分析标准物质  Standard material for analysis of volatile phenols in water  20mL  

甲醇中丙酮溶液标准物质  Standard substance for acetone solution in methanol  2mL  

甲醇中3种酚类质控样  Quality control samples of three phenols in methanol  1.5mL  

甲醇中2,4,6-三溴苯酚溶液标准物质  Reference material for 2,4, 6-tribromo-phenol solution in methanol  1.2mL  

丙酮中间甲酚溶液标准物质  Acetone intermediate cresol solution standard substance  2mL  

丙酮中邻甲酚溶液标准物质  Standard substance for o-cresol solution in acetone  2mL