基于 1,10-菲罗啉-过氧化氢反应的用于化学发光检测铜 (II) 的 PMMA 微反应器。

IF 2.6 3区 农林科学 Q2 FOOD SCIENCE & TECHNOLOGY
Xueye Chen, Jienan Shen, Tiechuan Li
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引用次数: 0

摘要

本文介绍了一种用于水样中铜(II)化学发光检测的微反应器,其原理是测量过氧化氢在碱性水溶液中催化 1,10-菲罗啉氧化时铜(II)发出的光。选用聚甲基丙烯酸甲酯(PMMA)作为材料,用碾磨和热粘合方法制造微反应器。优化试剂条件为 6.3 × 10(-5)mol/L 1,10-菲罗啉、1.5 × 10(-3)mol/L 过氧化氢、7.0 × 10(-2)mol/L 氢氧化钠和 2.4 × 10(-5)mol/L 十六烷基三甲基溴化铵(CTMAB)。在连续流动进样模式下,该系统可进行全自动检测,每次试剂消耗量仅为 3.5 μL。Cu (II) 离子浓度的线性范围为 1.5 × 10(-8) mol/L 至 1.0 × 10(-4) mol/L,检出限为 9.4 × 10(-9)mol/L ,信噪比为 4;2.0 × 10(-6) mol/L Cu (II) 离子的相对标准偏差为 3.0 %(n = 10)。该检测方法最明显的特点是简单、快速和易于制造微反应器。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
PMMA microreactor for chemiluminescence detection of Cu (II) based on 1,10-Phenanthroline-hydrogen peroxide reaction.

A microreactor for the chemiluminescence detection of copper (II) in water samples, based on the measurement of light emitted from the copper (II) catalysed oxidation of 1,10-phenanthroline by hydrogen peroxide in basic aqueous solution, is presented. Polymethyl methacrylate (PMMA) was chose as material for fabricating the microreactor with mill and hot bonding method. Optimized reagents conditions were found to be 6.3 × 10(-5)mol/L 1,10-phenanthroline, 1.5 × 10(-3)mol/L hydrogen peroxide, 7.0 × 10(-2)mol/L sodium hydroxide and 2.4 × 10(-5)mol/L Hexadecyl trimethyl ammonium Bromide (CTMAB). In the continuous flow injection mode the system can perform fully automated detection with a reagent consumption of only 3.5 μL each time. The linear range of the Cu (II) ions concentration was 1.5 × 10(-8) mol/L to 1.0 × 10(-4) mol/L, and the detection limit was 9.4 × 10(-9)mol/L with the S/N ratio of 4. The relative standard deviation was 3.0 % for 2.0 × 10(-6) mol/L Cu (II) ions (n = 10). The most obvious features of the detection method are simplicity, rapidity and easy fabrication of the microreactor.

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来源期刊
CiteScore
7.70
自引率
0.00%
发文量
274
审稿时长
11 months
期刊介绍: The Journal of Food Science and Technology (JFST) is the official publication of the Association of Food Scientists and Technologists of India (AFSTI). This monthly publishes peer-reviewed research papers and reviews in all branches of science, technology, packaging and engineering of foods and food products. Special emphasis is given to fundamental and applied research findings that have potential for enhancing product quality, extend shelf life of fresh and processed food products and improve process efficiency. Critical reviews on new perspectives in food handling and processing, innovative and emerging technologies and trends and future research in food products and food industry byproducts are also welcome. The journal also publishes book reviews relevant to all aspects of food science, technology and engineering.
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