货号 | 描述 |
48100-U | 半挥发性碱性-中性基质加标混合物 A 1000?μg/mL each component in methanol, analytical standard |
48869 | 半挥发性碱性-中性基质加标混合物 B 1000?μg/mL each component in methylene chloride, analytical standard |
48935 | 半挥发性碱性/中性替代加标混合物 1000?μg/mL each component in methylene chloride, analytical standard |
47262 | 半挥发性碱性/中性替代加标混合物 5000?μg/mL each component in methylene chloride, analytical standard |