产品介绍：
| Benzene | 苯 | 71-43-2 | 50 µg/mL |
| Ethylbenzene | 乙基苯 | 100-41-4 | 50 µg/mL |
| MtBE | 甲基叔丁基醚 | 1634-04-4 | 50 µg/mL |
| Naphthalene | 萘 | 91-20-3 | 50 µg/mL |
| Toluene | 甲苯 | 108-88-3 | 50 µg/mL |
| o-Xylene | 邻二甲苯 | 95-47-6 | 50 µg/mL |
| m-Xylene | 间二甲苯 | 108-38-3 | 50 µg/mL |
| p-Xylene | 对二甲苯 | 106-42-3 | 50 µg/mL |
