正己烷中4种有机氯(4种六六六)混合溶液标准物质  Reference material for mixed solution of 4 organochlorines (4 kinds of BHC) in n-hexane  1.2mL  

正己烷中4种有机氯(4种六六六)混合溶液标准物质  Reference material for mixed solution of 4 organochlorines (4 kinds of BHC) in n-hexane  1.2mL  

正己烷中8种有机氯(六六六、滴滴涕混合溶液)混合溶液标准物质  Standard substance for mixed solution of 8 organochlorines (BHC, DDT mixed solution) in n-hexane  1.2mL  

正己烷中8种有机氯(六六六、滴滴涕混合溶液)混合溶液标准物质  Standard substance for mixed solution of 8 organochlorines (BHC, DDT mixed solution) in n-hexane  1.2mL  

正己烷中8种有机氯(六六六、滴滴涕混合溶液)混合溶液标准物质  Standard substance for mixed solution of 8 organochlorines (BHC, DDT mixed solution) in n-hexane  1.2mL  

正己烷中外环氧七氯B溶液标准物质  N-hexane heptachloride B solution reference material  1.2mL  

正己烷中内环氧七氯A溶液标准物质  The standard material for the solution of heptachloride A in n-hexane  1.2mL  

正己烷中氯硝胺(阿丽散)溶液标准物质  Klonitramine (Alisan) solution reference material in n-hexane  1.2mL  

正己烷中氯硝胺溶液标准物质  Klonitramine solution reference material in n-hexane  1.2mL  

甲醇中甲基咪草烟溶液标准物质  Standard substance for imidopyrum solution in methanol  2mL