基于称量滴定的饮水快速检测系统

doi:10.19894/j.issn.1000-0518.200260

摘要/Abstract

摘要： 建立基于称量滴定法测定的饮水指标的高通量、低成本的现场快速检测系统。利用天平称量代替传统手工滴定,快速测定饮水中的总硬度、氯化物、总碱度和耗氧量(COD)。测定结果表明4项指标的检出限为0.05～10.0 mg/L,精密度为0.5%～3.1%,与传统国标测定方法相比相对误差的绝对值为0.5%～4.8%且至少快1 d,基本实现了快速检测系统的快速、准确、低成本化及小型化。

关键词: 称量滴定, 饮水, 快速检测

Abstract: A system based on weighing titration method was developed for total hardness, chlorine, total alkalinity and chemical oxygen demand (COD) determination in drinking water. The system is feasible, sensitive, precise, accurate and practical. The detection limit is between 0.05 mg/L and 10.0 mg/L, the relative standard deviation (RSD) of three levels is 0.5%~3.1%, and the detection system is faster than the conventional determination method of national standard for the same sample amount at least 1 day. The characteristic parameters of these methods are met other analytical methods, and the results are in good agreement with the data obtained by the standard measurement method with the relative deviation of 0.5%～4.8%.

Key words: Weighing titration, Drinking water, Rapid detection system

中图分类号:

O655.2

张淼, 郑磊, 丁亮. 基于称量滴定的饮水快速检测系统[J]. 应用化学, 2021, 38(4): 457-464.

ZHANG Miao, ZHENG Lei, DING Liang. Rapid Detection System Based on the Weighing Titration Method in Drinking Water[J]. Chinese Journal of Applied Chemistry, 2021, 38(4): 457-464.

参考文献

[1] 展惠英, 景茜, 汪雅娟. 水样总碱度的测定[J]. 云南化工, 2018, 45(9): 89-90.
ZHAN H Y, JING Q, WANG Y J. Determination of total alkalinity of water samples[J]. Yunnan Chem Technol, 2018, 45(9): 89-90.
[2] 袁辉. 应用自动电位滴定仪测定水中总硬度方法研究[J]. 甘肃水利水电技术, 2016, 52(10): 21-23.
YUAN H. A method for the determination of total hardness in water by automatic potentiometric titration[J]. Gansu Water Resour Hydropower Technol, 2016, 52(10): 21-23.
[3] 田渭花, 王舒婷, 窦蓓蕾, 等. 自动电位滴定法测定水中总硬度的应用研究[J]. 安徽农学通报, 2015, 21(22): 25-26.
TIAN W H, WANG S T, CHEN G G, et al. Study on the application of the determination of total hardness in the water with antomatic potentiometric titration[J]. Anhui Agric Sci Bull, 2015, 21(22): 25-26.
[4] 徐丹. 离子色谱法测定水中总硬度[J]. 现代农业科技, 2019(14):170-171.
XU D. Determination of total hardness in water by ion chromatography[J]. XianDai NongYe KeJi, 2019 (14): 170-171.
[5] KIM H, JUNG Y, DOH I J, et al. Smartphone-based low light detection for bioluminescence application[J]. Sci Rep, 2017, 7: 40203.
[6] HOSSAIN M N, ISHIDA R, HATTORI M, et al. Bioluminescent ratiometric indicator for analysis of water hardness in household water[J]. Sensors, 2020, 20(11): 3164.
[7] SIMON G D, KIRSTY B, ANDREW M W, et al. The effect of water hardness on surfactant deposition after washing and subsequent skin irritation in atopic dermatitis patients and healthy control subjects[J]. J Invest Dermatol, 2018, 138(1): 68-77.
[8] RIAZ M, SAEED M, SAQLIAIN M, et al. Impact of water hardness in instinctive laundry system based on fuzzy logic controller[J]. J Math, 2019, 51(4): 73-84.
[9] 李娟利. 水中总碱及酚酞碱度测定方法的改进[J]. 中国化工贸易, 2018, 10(29): 140, 143.
LI J L. Improvement of determination method of alkalinity and phenolphthalein in water[J]. China Chem Trade, 2018, 10(29): 140, 143.
[10] 秦玉华, 王东兵, 张海燕, 等. 基于图像识别技术的总碱度自动测定方法[J]. 仪器仪表学报, 2011, 32(11): 2585-2589.
QIN Y H, WANG D B, ZHANG H Y, et al. Automatic determination of total alkalinity based on image identification technology[J]. Chinese J Sci Instrum, 2011, 32(11): 2585-2589.
[11] 李珍. 自动电位滴定仪测定水中总碱度方法的研究[J]. 石油化工应用, 2013, 32(6): 89-92.
LI Z. Study of measure method for the total alkalinity in water by automatic potentiometric titration [J]. Petrochem Ind Appl, 2013, 32(6): 89-92.
[12] 孙媚华, 陈迁. 离子色谱法和离子选择电极法测定水中氯化物的比较[J]. 广东工业大学学报, 2017, 34(4): 36-40.
SUN M H, CHEN Q. A comparison of ion chromatography method with ion selective electrode method in the detection of chlorides in water[J]. J Guangdong Univ Technol, 2017, 34(4): 36-40.
[13] 朱建丰, 陈军, 封蓉芳. 连续流动分析法测定包装饮用水中耗氧量[J]. 食品工业, 2018, 39(1): 1-3.
ZHU J F, CHEN J, FENG R F. Determination of oxygen consumption in bottled water by continuous flow analysis[J]. Food Ind, 2018, 39(1): 1-3.
[14] 裴赛峰, 蔡萍, 张昀. 电位滴定法与酸性高锰酸钾滴定法测定饮用水中耗氧量的比较分析[J]. 环境与职业医学, 2019, 36(12): 1156-1160.
PEI S F, CAI P, ZHANG Y. Comparison of potentiometric titration method and acidic potassium permanganate method for determination of oxygen consumption in drinking water[J]. J Environ Occup Med, 2019, 36(12): 1156-1160.
[15] 张立辉, 王梦婷, 霍宗利. 智能分析仪测定生活饮用水耗氧量的可行性研究[J]. 江苏预防医学, 2019, 30(6): 598-600, 625.
ZHANG L H, WANG M T, HUO Z L. Feasibility study on measuring chemical oxygen demand in drinking water by intelligent analyzer[J]. Jiangsu J Prevent Med, 2019, 30(6): 598-600, 625.
[16] 刘汉祥. 生活饮用水耗氧量检测方法实际应用优化[J]. 广东化工, 2019, 46(13): 47-48.
LIU H X. Practical application optimization of oxygen consumption test method for drinking water[J]. Guangdong Chem Ind, 2019, 46(13): 47-48.
[17] 莫国莉, 康军, 杨文慧, 等. 基于二氧化钛纳米锥阵列的光电化学传感器检测水中的化学耗氧量[J]. 内蒙古石油化工, 2019, 45(5): 7-12.
MO G L, KANG J, YANG W H, et al. Photoelectrochemical sensor based on TiO₂ nanocone arrays for determination of chemical oxygen demand in water[J]. Inner Mongolia Petrochem Ind, 2019, 45(5): 7-12.
[18] 张琳昀, 陈国松. 基于NPsNi-Nafion-GO修饰平面电极和3D薄层流通池的水体化学耗氧量快速检测系统[J]. 江苏预防医学, 2019, 30(3): 262-265, 275.
ZHANG L Y, CHEN G S. Establishment of a rapid detection system for chemical oxygen demand based on NPsNi-Nafion-GO modified planar electrode and 3D thin-layer flow cell[J]. Jiangsu J Prevent Med,.2019, 30(3): 262-265, 275.
[19] 赵文杰, 马明, 张珂, 等. 自动电位滴定仪应用于地下水六项指标的连续滴定[J]. 岩矿测试, 2018, 37(5): 580-585.
ZHAO W J, MA M, ZHANG K, et al. Application of automatic potentiometric titrator in continuous titration of six indices in groundwater[J]. Rock Miner Anal, 2018, 37(5): 580-585.
[20] ELMAHADI OMER H, HAFEZ B, SIROOR ALSHAM M, et al. Online novel techniques for selective simultaneous determination of alkalinity/bicarbonate and hardness in drinking water by Skalar San⁺⁺ segmented flow analysis[J]. Mor J Chem, 2020, 8(1): 124-146.