顶空气相色谱法测定碳酸化过程中沉淀碳酸钙的碳酸化速率。

IF 3.8 2区化学 Q1 BIOCHEMICAL RESEARCH METHODS Journal of Chromatography A Pub Date : 2025-01-25 DOI:10.1016/j.chroma.2024.465616

Hongyue Zhu , Han Zheng , Tinghui Zhang , Qiyu He , Huan Li , Tingliang Yang , Baoshan Yue , Yingchun Luo , Xu Wang , Jiao Xie , Yi Dai

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引用次数: 0

摘要

本文报道了一种基于顶空气相色谱法测定沉淀碳酸钙（PCC）碳酸化过程中碳酸化速率（CR）的方法。该方法是通过同时检测二氧化碳和氧气的信号值来实现的。然后根据新的数学模型，用二氧化碳与氧气的比值（γ）来计算碳酸钙在碳化过程中的碳化速率。结果表明，在最佳平衡温度和平衡时间（60℃，10 min）下，该方法具有良好的精密度（相对标准偏差< 5%）和准确度。该方法操作简单，测量范围大，可作为测定PCC碳酸化过程中碳酸化速率的可靠工具。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Determination of carbonation rate of precipitated calcium carbonate in carbonation process based on headspace gas chromatography

This paper reports a method for determining the carbonation rate (CR) of precipitated calcium carbonate (PCC) during carbonation process based on headspace gas chromatography technique. The method was carried out by simultaneously detecting the signal values of carbon dioxide and oxygen. Then the carbonation rate of precipitated calcium carbonate in the carbonation process can be calculated by the ratio (γ) of carbon dioxide to oxygen based on a new mathematical model. The results showed that the employed method has good precision (the relative standard deviation < 5 %) and accuracy under the optimized equilibrium temperature and time (60 °C and 10 min). The method is simple and has a large measurable range, which can be an reliable tool for determining the carbonation rate in the carbonation process of PCC.

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来源期刊

Journal of Chromatography A 化学-分析化学

CiteScore

7.90

自引率

14.60%

发文量

742

审稿时长

45 days

期刊介绍： The Journal of Chromatography A provides a forum for the publication of original research and critical reviews on all aspects of fundamental and applied separation science. The scope of the journal includes chromatography and related techniques, electromigration techniques (e.g. electrophoresis, electrochromatography), hyphenated and other multi-dimensional techniques, sample preparation, and detection methods such as mass spectrometry. Contributions consist mainly of research papers dealing with the theory of separation methods, instrumental developments and analytical and preparative applications of general interest.