| 自动电位滴定法同时测定脱硫浆液中钙和钙镁总量 |
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| 引用本文： | 宋晓红,高姗.自动电位滴定法同时测定脱硫浆液中钙和钙镁总量[J].理化检验(化学分册),2012(5):538-539. |
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| 作者姓名： | 宋晓红 高姗 |
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| 作者单位： | 河北省电力研究院 |
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| 摘 要： | 采用自动电位滴定法,在pH 10的氨-氯化铵缓冲溶液中,用EDTA标准溶液作为滴定剂,同时测定脱硫浆液中钙和钙镁总量。方法用于测定脱硫浆液中钙和镁的含量,镁的回收率在98.2%～100.4%之间,相对标准偏差(n=5)为0.48%～0.64%;钙的回收率在97.6%～100.7%之间,相对标准偏差(n=5)为0.54%～0.99%。
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| 关 键 词： | 自动电位滴定法 脱硫浆液 钙 镁 |
Automatic Potentiotitrimetric Determination of Amount of Ca and Total Amount of Ca-Mg in Desulfurizing Pasty Liquor |
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| SONG Xiao-hong,GAO Shan.Automatic Potentiotitrimetric Determination of Amount of Ca and Total Amount of Ca-Mg in Desulfurizing Pasty Liquor[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2012(5):538-539. |
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| Authors: | SONG Xiao-hong GAO Shan |
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| Institution: | (Hebei Provincial Electic Power Research Institute,Shijiazhuang 050021,China) |
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| Abstract: | The content of Ca and total content of Ca-Mg in desulfurizing pasty liquor were determined by automatic potentiometric titration using EDTA standard solution as titrant in an ammoniacal buffer solution of pH 10.The proposed method was applied to the determination of Ca and Mg in samples of desulfurizing pasty liquor,giving values of recovery and RSD′s(n=5) in the ranges of 98.2%-100.4% and 0.48%-0.64% for Mg;and 97.6%-100.7% and 0.54%-0.99% for Ca respectively. |
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| Keywords: | Automatic potentiotitrimetry Desulfurizing pasty liquor Ca Mg |
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