亚铈试纸的设计与制作

doi:10.11944/j.issn.1000-0518.2020.09.200026

摘要/Abstract

摘要： 以中速定量滤纸作为基纸,依次用作为基纸改性剂的十六烷基三甲基溴化铵(质量分数0.5%)和作为显色剂的二甲酚橙(质量分数0.2%)浸泡、晾干,制成亚铈试纸。用1.000×10^-5~1.000 mol/L的Ce³⁺标准溶液分别浸泡该试纸,制成11种颜色的标准比色卡。建立了强酸性Ce⁴⁺/Ce³⁺混合液中Ce³⁺浓度的半定量试纸测定法。将本法应用于再生电解液和模拟有机合成液中Ce³⁺浓度的测定,表明只需用质量分数20%的六次甲基四胺缓冲溶液将试液调整至pH值5.0~6.0,结果准确度良好,共存的Ce⁴⁺、对苯二酚、对羟基苯甲醛、1,10-二羟基蒽醌等组分均不产生干扰。该试纸具有制作方法简单、廉价易得、检测快速、易操作等优点,可应用于生产流程中Ce³⁺浓度的快速检测。

关键词: 中速定量滤纸, 基纸改性, 二甲酚橙, Ce(III)试纸

Abstract: Ce(III) test paper was prepared for the detection of Ce³⁺ concentration using medium-speed quantitative filter paper as the base paper, 0.5% mass fraction cetyltrimethylammonium bromide as a modifier for base paper and 0.2% mass fraction xylenol orange as the color reagent adsorbed on base paper sequentially. A standard color chart including 11 colors was made by soaking the test paper in a series of Ce³⁺ standard solution in the concentration range of 1.000?0^-5 to 1.000 mol/L. A semi-quantitative method was established for detection of Ce³⁺ concentration in the mixed solution of Ce⁴⁺/Ce³⁺. The method was used for detection of Ce³⁺ in an electrolyte or organic reaction fluid containing Ce⁴⁺, hydroquinone, p-hydroxybenzaldehyde and 1,10-dihydroxyanthraquinone in the buffer solution of hexamethylenetetramine at pH 5.0~6.0. The results show that the method has a good accuracy and those coexisting components do not interfere with the determination. The test paper has advantages of simple manufacturing, cheapness, fast detection speed and easy operation. It is applied to the rapid monitoring of Ce³⁺ concentration in the production process.

Key words: medium-speed quantitative filter paper, modified base paper, xylenol orange, Ce(III) test paper

崔媛, 周靓, 赫春香. 亚铈试纸的设计与制作[J]. 应用化学, 2020, 37(9): 1087-1092.

CUI Yuang, ZHOU Liang, HE Chunxiang. Design and Manufacture of Cerium Test Paper[J]. Chinese Journal of Applied Chemistry, 2020, 37(9): 1087-1092.

参考文献

[1] HU Ruisheng,LIU Xin,GU Dengping,et al. Indirect Synthesis of p-Sethoxybenzaldehyde Using Cr₂O^2-₇/Cr³⁺ and Ce⁴⁺/Ce³⁺ as Electrolytic Medium[J]. J Chem Eng Chinese Univ,2009,19(1):134-138(in Chinese).
胡瑞省,刘欣,顾登平,等. Cr₂O^2-₇/Cr³⁺和Ce⁴⁺/Ce³⁺电解液作媒质间接合成对甲氧基苯甲醛[J]. 高等学校工程学报,2009,19(1):134-138.
[2] TANG Xinjun,OU Lihui,YI Jianlong,et al. Kinetics Study on Oxidation Reaction of Anethole to Anisaldehyde by Ceric Saufate[J]. Chem Res Appl,2006,18(6):554-556(in Chinese).
唐新军,欧利辉,易建龙,等. 硫酸高铈氧化茴香脑合成茴香醛的反应动力学研究[J]. 化学研究与应用,2006,18(6):554-556.
[3] XU Chunhong,CHEN Riyao,ZHENG Xi,et al. Electro-catalytic Synthesis of Benzaldehyde Using Electro-oxidation Nano MnO₂ as Mediator[J]. J Mol Catal,2007,21(3):229-232(in Chinese).
许春红,陈日耀,郑曦,等. 电催化氧化制备苯甲醛的研究[J]. 分子催化,2007,21(3):229-232.
[4] ZHANG Shaohua,LIU Chunsheng,LUO Genxiang. Study on the Catalytic Oxidation Performance of Ce(NO₃)₃·6H₂O for the Conversion of Cyclohexanol to Cyclohexanone[J]. Contemp Chem Ind,2002,31(4):190-192(in Chinese).
张少华,刘春生,罗根祥. 硝酸亚铈催化氧化环己醇制环己酮的研究[J]. 当代化工,2002,31(4):190-192.
[5] WU Changzeng. Synthesis of Butyl Butyrate with Ceric Sulfate as Catalysts[J]. Chem Res Appl,2002,14(5):599-600(in Chinese).
吴长增. 硫酸铈(IV)催化合成丁酸丁酯[J]. 化学研究与应用,2002,14(5):599-600.
[6] CAO Xiaoqun,LIU Xincheng,YUE Shan. Study on Synthesis of 1,4-Naphthoquinone[J]. Fine Spec Chem,2006,14(12):18-20(in Chinese).
曹晓群, 刘欣程,岳山. 1,4-萘醌的合成研究[J]. 精细与专用化学品,2006,14(12):18-20.
[7] Kreysa G,Medin H. Indirect Electrosynthesis of p-Methoxybenzaldehyde[J]. J Appl Electrochem,1986,16(5):757-767.
[8] LI Zhaohua,CHU Youqun,MA Chun′an. Indirect Electrochemical Synthesis of 1,4-Naphthoquinone Mediated by Ce³⁺/Ce⁴⁺[J]. CIESC J L,2013,64(1):334-339(in Chinese).
李照华,褚有群,马淳安. 以Ce³⁺/Ce⁴⁺为媒质间接电合成1,4-萘醌[J]. 化工学报,2013,64(1):334-339.
[9] LOU Dawei,YANG Yingjie,TAN Naidi,et al. Technological Study on Indirect Electrochemical Synthesis of 1,4-Naphthoquinone[J]. J Jinlin Inst Chem Technol,2001,18(3):31-33(in Chinese).
娄大伟,杨英杰,谭乃迪,等. 间接电氧化合成1,4-萘醌的工艺研究[J]. 吉林化工学院学报,2001,18(3):31-33.
[10] CHENG Mingyan,LIU Helian,WU Weiming,et al. Review on the Standards for Rare Earth Analysis and Testing Methods[J]. Nonferrous Met Sci Eng,2012,3(4):108-114(in Chinese).
程明焱,刘和连,吴伟明,等. 稀土分析检测方法标准评述[J]. 有色金属科学与工程,2012,3(4):108-114.
[11] YIN Yongjia. College Chemistry Handbook[M]. Ji′nan:Shandong Science and Technology Press,1985,1rd,280(in Chinese).
印永嘉主编. 大学化学手册[M]. 济南:山东科学技术出版社,1985年2月第1版,280.
[12] Teaching and Research Office of Analytical Chemistry, Department of Chemistry, Hangzhou University. Handbook of Analytical Chemistry[M]. Beijing:Chemical Industry Press,1997,2rd,457-496(in Chinese).
杭州大学化学系分析化学教研室主编. 分析化学手册(第二分册)[M]. 北京:化学工业出版社,1997年12月第2版,457-496.