基于碘化钾显色反应测定水质高锰酸盐指数

引用本文: 李必冬, 叶紫淇, 黄才宝, 周凤谊, 容玉瑶, 刘长宇, 李玉瑛, 徐晓龙, 郏建波, 刘敏超. 基于碘化钾显色反应测定水质高锰酸盐指数[J]. 分析化学, 2021, 49(6): 1044-1052. doi: 10.19756/j.issn.0253-3820.211221 shu

Citation: LI Bi-Dong, YE Zi-Qi, HUANG Cai-Bao, ZHOU Feng-Yi, RONG Yu-Yao, LIU Chang-Yu, LI Yu-Ying, XU Xiao-Long, JIA Jian-Bo, LIU Min-Chao. Permanganate Index Measuring Method Based on Chromogenic Reaction of Potassium Iodide[J]. Chinese Journal of Analytical Chemistry, 2021, 49(6): 1044-1052. doi: 10.19756/j.issn.0253-3820.211221 shu

基于碘化钾显色反应测定水质高锰酸盐指数

李必冬 ^1, ,
叶紫淇 ^1, ,
黄才宝 ^1, ,
周凤谊 ^2, ,
容玉瑶 ^3, ,
刘长宇 ^{1,
,} ,
李玉瑛 ^1, ,
徐晓龙 ^1, ,
郏建波 ^1, ,
刘敏超 ^{1,
,}

1.
五邑大学生物科技与大健康学院, 江门 529020;
2.
江门市农业环境监测站, 江门 529000;
3.
江门市农产品质量监督检验测试中心, 江门 529200

通讯作者: 刘长宇,E-mail:wyuchemcyliu@126.com; 刘敏超,E-mail:wyuchemlmc@126.com

基金项目:
国家自然科学基金项目（No.21974097）、广东省普通高校重点实验室项目（No.2020KSYS004）、广东省普通高校重点领域专项（No.2020ZDZX2015）和江门市科技局项目（No.2020030102730008711）资助。

摘要: 高锰酸盐指数（COD_Mn）是评价地表水有机物污染程度的重要指标之一。本研究以KMnO₄处理水样，以碘化钾还原处理后水样中剩余的KMnO₄，建立了一种简单、快速、低消耗的水质COD_Mn测定方法。在反应温度为105℃、消解时间为20 min、KMnO₄溶液浓度为0.0040 mol/L、H₂SO₄溶液浓度为1∶4（V/V）的条件下，产物I₃^-溶液吸光度与COD_Mn有良好的线性关系，方法检出限为0.2 mg/L，测定下限为0.5 mg/L，测定上限高达9.0 mg/L。在实际水样测试中，加标回收率在100.0%~108.0%之间。与国标方法相比，扩大了检测范围，简化了反应过程，实现了批量测量，具有良好的重现性和稳定性，适合发展为在线监测方法。

关键词:

English

Permanganate Index Measuring Method Based on Chromogenic Reaction of Potassium Iodide

1.
School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China;
2.
Jiangmen Agricultural Environment Monitoring Station, Jiangmen 529000, China;
3.
Jiangmen Agricultural Product Quality Supervision Inspection and Test Center, Jiangmen 529200, China

Corresponding author: LIU Chang-Yu, ; LIU Min-Chao,

Received Date: 18 March 2021
Revised Date: 30 April 2021
Fund Project:
Supported by the National Natural Science Foundation of China (No..21974097), the Key Laboratory Project of Guangdong Regular Higher Education Institutions (No.2020KSYS004), the Major Project of Guangdong Regular Higher Education Institutions (No.2020ZDZX2015) and the Jiangmen Municipal Science and Technology Bureau (No.2020030102730008711).

Abstract: Permanganate index (COD_Mn) is one of the important indicators in evaluating the pollution level of ground water. In this study, KMnO₄ was used to treat water samples and the residual KMnO₄ in water samples was treated by KI. On the basis of this, a simple, fast and low consumption method for determination of COD_Mn was established by way of chromogenic reaction. Under the optimum experiment conditions such as reaction temperature at 105 ℃, digestion for 20 min, 0.0040 mol/L KMnO₄, and H₂SO₄ solution (1∶4, V/V), there was a good linear relationship between the absorbance of I₃^- solution and the concentration of COD_Mn. The detection limit ranged from 0.5 to 9.0 mg/L and the limit of detection was 0.2 mg/L. In the real water samples test, the adding standard recovery ranged from 100.0% to 108.0%. Compared with the national standard method, this method expanded the range of detection, simplified the reaction process, and admitted batch measurement. This method confirmed a good reproducibility, and was suitable for developing online monitoring method.

Key words:

1. [1]
  MA J. Trends Environ. Anal. Chem., 2017, 14: 37-43.
2. [2]
  DHANJA I, SINHA A, ZHAO H M, CHEN J P, MUGO S M. Encyclopedia of Analytical Science (Third Edition), Oxford: Academic Press, 2019: 258-270.
3. [3]
  LI J, LUO G B, HE L J, XU J, LYU J. Crit. Rev. Anal. Chem., 2018, 48(1): 47-65.
4. [4]
  HENG W X, ZHANG W, ZHANG Q H, WANG H Z, LI Y G. RSC Adv., 2016, 6(55): 49824-49830.
5. [5]
  MA Y J, TIE Z Z, ZHOU M, WANG N, GAO X J, XIE Y. Anal. Methods, 2016, 8(18): 3839-3846.
6. [6]
  GB/T11892-89. Water Quality-Determination of Permanganate Index. National Standards of the People's Republic of China. 水质高锰酸盐指数的测定. 中华人民共和国国家标准. GB/T11892-89.
7. [7]
  ISO 8467-1993. Water Quality-Determination of Permanganate Index. International Standard.
8. [8]
  TIAN J J, HU Y G, ZHANG J J. Environ. Sci. (Beijing, China), 2008, 20(2): 252-256.
9. [9]
  HUE D T K, HASHIMOTO S, NISHIKAWA H, MAEDA Y, TAKENAKA N. Anal. Sci., 2017, 33(8): 931-938.
10. [10]
  FENG Li, ZHANG Xin-Shen, LENG Geng, LI Shao-Bo, DAN De-Zhong. Chin. J. Anal. Chem., 2012, 40(4): 630-633. 冯丽, 张新申, 冷庚, 李绍波, 但德忠. 分析化学, 2012, 40(4): 630-633.
11. [11]
  DAN D Z, SANDFORD R C, WORSFOLD P J. Analyst, 2005, 130(2): 227-232.
12. [12]
  YU Jing-Xiang, LIU Guo-Hong, REN Li-Jun, LIU Meng, HUANG Zhi-Ping, LI Jian, LI Dan-Ping, XIAO Yan-Hua. Chin. J. Anal. Chem., 2020, 48(7): 962-968. 于竞翔, 刘国宏, 任丽君, 刘萌, 黄志平, 李建, 李丹萍, 肖艳华. 分析化学, 2020, 48(7): 962-968.
13. [13]
  ZHU Xiao-Ting, ZHU Zhe-Xin, YE Mei-Ying. Chin. J. Anal. Chem., 2019, 47(1): 106-111. 朱晓婷, 朱哲欣, 叶美英. 分析化学, 2019, 47(1): 106-111.
14. [14]
  WANG Zhong-Rong, WEI Fu-Xiang, WANG Pan-Pan, HE Li, CUI Jian-Sheng. Chin. J. Anal. Chem., 2016, 44(9): 1328-1334. 王中荣, 魏福祥, 王盼盼, 何礼, 崔建升. 分析化学, 2016, 44(9): 1328-1334.
15. [15]
  ZHU Hong-Qiu, ZHOU Tao, LI Yong-Gang, CHEN Jun-Ming. Chin. J. Anal. Chem., 2019, 47(4): 576-582. 朱红求, 周涛, 李勇刚, 陈俊名. 分析化学, 2019, 47(4): 576-582.
16. [16]
  ZHOU Feng-Bo, LI Yong-Gang, ZHU Hong-Qiu. Chin. J. Anal. Chem., 2019, 47(8): 1243-1248. 周风波, 李勇刚, 朱红求. 分析化学, 2019, 47(8): 1243-1248.
17. [17]
  ZHAO J, ZHANG W, SUN M J, WEI X S. Progress In Environmental Science And Engineering, Pts 1-4, Stafa-Zurich:Trans Tech Publications Ltd, 2013: 610-613, 1103-1108.
18. [18]
  MCBEATH S T, WILKINSON D P, GRAHAM N J D. Chemosphere, 2020, 251: 126626.
19. [19]
  PANG Z J, CAI Y J, XIONG W H, XIAO J Y, ZOU J. Chemosphere, 2021, 266: 128936.
20. [20]
  HAN Bing-Yan, YAN Qin, XIN Ze, YAN Qi-Fang, JIANG Jing-Mei. Chin. J. Anal. Chem., 2020, 48(8): 1025-1032. 韩冰雁, 闫琴, 辛泽, 燕琪芳, 姜静美. 分析化学, 2020, 48(8): 1025-1032.
21. [21]
  LUO Z Y, STROUSE M, JIANG J Q, SHARMA V K J. Environ. Sci. Health, Part A: Toxic/Hzzard. Subst. Environ. Eng., 2011, 46(5): 453-460.
22. [22]
  SHAO Lei, PAN Shu, CHU Yan-Long, TANG Xiao-Yan.Chem. Anal. Meterage, 2018, 27(1): 99-102. 邵磊, 潘淑, 褚衍龙, 唐小燕. 化学分析计量, 2018, 27(1): 99-102.
23. [23]
  WEI Yong-Ju, LIU Cui-Ge, MO Li-Ping. Spectrosc. Spectral Anal., 2005, 25(1): 86-88. 魏永巨, 刘翠格, 默丽萍. 光谱学与光谱分析, 2005, 25(1): 86-88.
24. [24]
  LI W, CHENG L, LV H, GAO K, LUO X K. IOP Conference Series-Earthand Environmental Science, Bristol:Iop Publishing Ltd, 2019: 344.
25. [25]
  TIAN Li, QIAO Guang-Jian. City Town Water Supply, 2007, (5): 50-53. 田莉, 乔光建. 城镇供水, 2007, (5): 50-53.
26. [26]
  HUANG Feng-Mei, Fujian Anal. Test., 2011, 20(3): 22-24. 黄凤妹. 福建分析测试, 2011, 20(3): 22-24.
27. [27]
  HJ 377-2019. Technical Specifications and Test Procedures for Water Quality On-Line Automatic Monitoring Equipment of Chemical Oxygen Demand (COD_Cr). National Environmental Protection Standards of the People's Republic of China. 化学需氧量(COD_Cr)水质在线自动监测仪技术要求及检测方法. 中华人民共和国国家环境保护标准, HJ 377-2019.
28. [28]
  HJ 915-2017. Technical Specifications for Automatic Monitoring of Surface Water. National Environmental Protection Standards of the People's Republic of China. 地表水自动监测技术规范. 中华人民共和国国家环境保护标准. HJ 915-2017.

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基于碘化钾显色反应测定水质高锰酸盐指数

通讯作者: 刘长宇,E-mail:wyuchemcyliu@126.com; 刘敏超,E-mail:wyuchemlmc@126.com

English

Permanganate Index Measuring Method Based on Chromogenic Reaction of Potassium Iodide

Corresponding author: LIU Chang-Yu, ; LIU Min-Chao,

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

基于碘化钾显色反应测定水质高锰酸盐指数

通讯作者: 刘长宇,E-mail:wyuchemcyliu@126.com; 刘敏超,E-mail:wyuchemlmc@126.com

English

Permanganate Index Measuring Method Based on Chromogenic Reaction of Potassium Iodide

Corresponding author: LIU Chang-Yu, ; LIU Min-Chao,

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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