二氯甲烷中9种多环芳烃类混合溶液标准物质  Reference material of 9 polycyclic aromatic hydrocarbons in mixed solution of methylene chloride  1mL  

正己烷中9种多环芳烃类混合溶液标准物质  Nine kinds of polycyclic aromatic hydrocarbons in n-hexane mixed solution reference material  1mL  

乙酸乙酯中5种苯系物混合溶液标准物质(套标)  Reference material for mixed solution of 5 benzene Series in ethyl acetate  2mL*7支  

甲醇中正十四烷、对二氯苯混合溶液标准物质  Standard substance for mixed solution of n-tetradecane and p-dichlorobenzene in methanol  1.2mL  

甲醇中三氯甲烷、四氯化碳混合溶液标准物质  Chloroform and carbon tetrachloride in methanol  2mL  

甲苯/异辛烷中10种多溴联苯混合溶液标准物质  Reference material for 10 kinds of polybrominated biphenyls mixed solution in toluene/isoctane  1.2mL  

甲醇中5种多环芳烃内标混合溶液标准物质  Five kinds of polycyclic aromatic hydrocarbons in methanol  1.2mL  

甲醇中11种挥发性有机物混合溶液标准物质  11 volatile organic compounds in methanol  2mL  

二氯甲烷中2种内标同位素混合溶液标准物质  Reference material for mixed solution of two internal standard isotopes in methylene chloride  1.2mL  

二氯甲烷中2种内标同位素混合溶液标准物质  Reference material for mixed solution of two internal standard isotopes in methylene chloride  1.2mL