正己烷中18种多氯联苯-PCB混标标准物质  Eighteen kinds of polychlorinated biphenyls and PCB mixed reference materials in n-hexane  1.2mL  

甲苯中18种多氯联苯-PCB混标标准物质  18 kinds of polychlorinated biphenyls -PCB mixed reference materials in toluene  1.2mL  

甲醇中2,6-二氯甲苯溶液标准物质  2, 6-dichlorotoluene solution reference material in methanol  2mL  

正己烷中十氯联苯(PCB209)溶液标准物质  Dechlorobenzene (PCB209) solution reference material in n-hexane  1.2mL  

二硫化碳中甲基叔丁基醚溶液标准物质  Methyl tert-butyl ether solution reference material in carbon disulfide  2mL  

水中二氯乙酸(二氯醋酸)、三氯乙酸(三氯醋酸)混合溶液标准物质  Dichloroacetic acid (dichloroacetic acid), trichloroacetic acid (trichloroacetic acid) in water mixed solution reference material  2mL  

水中氯乙酸(氯醋酸)、三氯乙酸(三氯醋酸)混合溶液标准物质  Chloroacetic acid (chloroacetic acid), trichloroacetic acid (trichloroacetic acid) in water mixed solution reference material  2mL  

水中氯乙酸(氯醋酸)、二氯乙酸(二氯醋酸)、三氯乙酸(三氯醋酸)混合溶液标准物质  In water, chloroacetic acid (chloroacetic acid), dichloroacetic acid (dichloroacetic acid), trichloroacetic acid (trichloroacetic acid) mixed solution reference material  2mL  

水中氯乙酸(氯醋酸)、二氯乙酸(二氯醋酸)混合溶液标准物质  Chloroacetic acid (chloroacetic acid), dichloroacetic acid (dichloroacetic acid) in water mixed solution reference material  2mL  

水中三氯乙酸(三氯醋酸)溶液标准物质  Trichloroacetic acid (trichloroacetic acid) in water solution reference material  2mL