| 两维酸碱—沉淀滴定法同时测定有机酸 |
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| 引用本文： | 朱仲良 褚建新. 两维酸碱—沉淀滴定法同时测定有机酸[J]. 分析化学, 1996, 24(6): 643-648 |
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| 作者姓名： | 朱仲良 褚建新 |
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| 作者单位： | 同济大学化学系!上海200092 |
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| 摘 要： |
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| 关 键 词： | 两维滴定 酸碱滴定法 沉淀滴定法 氯苯甲酸 |
Simultaneous Determination of Organic Acids by Two-dimensional Acid-base and Precipitation Titration |
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| Zhu Zhongliang, Chu Jianxin,Li Tonghua,Cong Peisheng. Simultaneous Determination of Organic Acids by Two-dimensional Acid-base and Precipitation Titration[J]. Chinese Journal of Analytical Chemistry, 1996, 24(6): 643-648 |
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| Authors: | Zhu Zhongliang Chu Jianxin Li Tonghua Cong Peisheng |
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| Abstract: | Based on the precipitation reaction and acid-base reaction of oranic acids, two-dimensional acid-base and precipitation titration is proposed. The mixture of acids with similar or even same ionization constants can be determined simultaneously by this method, if the solubility products are different. Principal corpponent regression is carried out to determine each component in the mixtures simultaneously. The mixtures of o-, m-, p-chlorobenzoic acid are analyzed and the results are satisfactory. The solubility product and intrinsic solubility of each component is also determined. The suitable pH range for measurement is discussed in detail. |
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| Keywords: | Two-dimensional acid-base titration precipitation titration simultaneous determination chlorobenzoic acid principal component regression |
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