| 磷酸氢钙中氟化物检查方法改进 |
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| 引用本文： | 王小兵,郑静,刘明洁. 磷酸氢钙中氟化物检查方法改进[J]. 齐鲁药事, 2011, 30(6): 333-334 |
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| 作者姓名： | 王小兵 郑静 刘明洁 |
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| 作者单位： | 山东省药品检验所,山东,济南,250101 |
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| 摘 要： | 目的改进磷酸氢钙中氟化物的检查方法。方法采用银-氯化银电极为参比电极,氟离子选择电极法测定磷酸氢钙中氟化物的含量。结果氟离子浓度在10~1 000 ng.mL-1时,电位值差值(△mv)与氟离子浓度(ng.mL-1)的对数值呈良好线性关系。结论该法操作简便、结果准确可靠,重现性良好。
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| 关 键 词： | 磷酸氢钙 氟离子选择电极 氟化物检查 |
Improvement of determination method of fluoride limit in Calcium Hydrogen Phosphate |
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| WANG Xiao-bing,ZHENG Jing,LIU Ming-jie. Improvement of determination method of fluoride limit in Calcium Hydrogen Phosphate[J]. qilu pharmaceutical affairs, 2011, 30(6): 333-334 |
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| Authors: | WANG Xiao-bing ZHENG Jing LIU Ming-jie |
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| Affiliation: | WANG Xiao-bing,ZHENG Jing,LIU Ming-jie(Shandong Institute for Drug Control,Jinan 250101,China) |
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| Abstract: | Objective To improve the test method fluoride limit in Calcium Hydrogen Phosphate.Methods Using Ag/AgCl electrode as reference electrode,fluorine content was determined by the method of fluoride ion selective electrode.Results There was a good linear relationship between the difference of the potential value（△mv） and the fluoride concentration（ng·mL-1）in the range of 10～1 000 ng·mL-1.Conclusion The method was simple,accurate,reliable with good reproducibility. |
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| Keywords: | Calcium Hydrogen Phosphate fluoride ion selective electrode limit test for fluoride |
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