| 1. | The colorimetric methods involve the bleaching of a preformed color by the fluoride ion .
比色法涉及氟离子对预先形成的颜色的消色作用。 |
| 2. | Standard test methods for fluoride ion in water
水中氟化物离子的标准测试方法 |
| 3. | Water quality - determination of fluoride ion - potentiometric method
水质.氟离子的测定.电位计法 |
| 4. | Fluoride ion standard solution
氟化物离子标准溶液 |
| 5. | Standard test method for fluoride ions in brackish water , seawater , and brines
微咸水海水和盐水中氟化物离子的标准试验方法 |
| 6. | Solid mineral fuels - determination of total fluorine by oxygen bomb combustion - fluoride ion specific electrode method
固体燃料.氧爆燃法测定总氟含量.氟离子专用电极法 |
| 7. | The presence of fluoride ion in drinking water may be beneficial or detrimental to people health depending on its concentration . drinking water with the concentration of fluoride kept within prescribed limits can reduce dental cavities and enhance the bone . however , when water supplies contain excessive fluoride concentration , it can result in dental or fluorosis , more severely it can cause crippling
氟是人体内维持骨骼正常发育必不可少的成分，但是氟的摄取量在有利和有害之间的变化范围极窄，长期饮用高氟水可导致氟斑牙，严重者导致骨骼变形、疼痛，关节僵硬，筋腱钙化，行走困难，以致瘫痪。 |
