同时测定钡离子和锶离子的智能手机辅助纸质比色分析平台

IF 2.2 4区 化学 Q3 CHEMISTRY, MULTIDISCIPLINARY
H. Ezoji, J. Neshati, N. Esmaeili
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引用次数: 0

摘要

重金属污染,尤其是水介质中的重金属污染,已成为人类健康和环境面临的一个重要风险。因此,由于钡(Ba2+)和锶(Sr2+)离子在环境中的广泛分布以及它们对人类健康的各种有害影响,开发精确和选择性测定它们的有效系统就显得尤为重要。为了开发一种易于使用的护理点传感装置,我们设计了一种基于纸张的比色传感装置,根据玫棕酸钠(SR)在不同浓度的目标分析物存在下的颜色变化来同时测量 Ba2+ 和 Sr2+ 离子。使用智能手机对这些颜色变化进行拍照,然后用 Photoshop 2022 软件进行分析,利用颜色强度的平均变化(RGB(红、绿、蓝)模型)绘制校准曲线。在单一溶液中定量识别 Ba2+ 和 Sr2+ 离子的方法是在某一时刻屏蔽其中一个离子。在 5-300 ppm 和 5-350 ppm 的范围内,平均颜色强度(G)与被分析物的浓度呈线性关系,Ba2+ 和 Sr2+ 离子的检测限(LOD)分别为 3.64 和 4.75 ppm。此外,还对拟议分析装置的选择性进行了评估;SR 对目标分析物具有选择性,而对其他离子则会引起相当大的颜色变化。此外,还研究了这种比色装置的实际应用,其在实际样品中的优异表现表明它具有现场应用的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Smartphone-assisted paper-based colorimetric analytical platform for simultaneous determination of barium and strontium ions

Smartphone-assisted paper-based colorimetric analytical platform for simultaneous determination of barium and strontium ions

Heavy metal contamination especially in aqueous media has become an important risk to human health and environment. Therefore, due to the broad distribution of barium (Ba2+) and strontium (Sr2+) ions in the environment and wide variety of their harmful health effects for human, development of efficacious systems for their accurate and selective determination is of great importance. Aiming to develop a point-of-care and easy-to-use sensing device, a paper-based colorimetric sensing device was designed for simultaneous measurement of Ba2+ and Sr2+ ions standing on the basis of the color change of sodium rhodizonate (SR) in the presence of various concentrations of the target analytes. These color changes were photographed using a smartphone, and after analyzing with Photoshop 2022 software, the average variations in the intensities of colors (RGB (red, green, blue) model) were used to draw the calibration curves. The quantitative identification of Ba2+ and Sr2+ ions in a single solution was carried out by masking one of them at a moment. The average color intensities (G) displayed a linear relationship with the concentration of the analytes in the ranges of 5––300 ppm and 5–350 ppm with the limit of detection (LOD) values of 3.64 and 4.75 ppm for Ba2+ and Sr2+ ions, respectively. Moreover, the selectivity of the proposed analytical device was assessed; SR was selective for the target analytes versus the other ions causing a considerable color change. Furthermore, the practical application of this colorimetric device was investigated by the excellent performance in real samples indicating its potential for field applications.

Graphical abstract

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来源期刊
CiteScore
4.40
自引率
8.30%
发文量
230
审稿时长
5.6 months
期刊介绍: JICS is an international journal covering general fields of chemistry. JICS welcomes high quality original papers in English dealing with experimental, theoretical and applied research related to all branches of chemistry. These include the fields of analytical, inorganic, organic and physical chemistry as well as the chemical biology area. Review articles discussing specific areas of chemistry of current chemical or biological importance are also published. JICS ensures visibility of your research results to a worldwide audience in science. You are kindly invited to submit your manuscript to the Editor-in-Chief or Regional Editor. All contributions in the form of original papers or short communications will be peer reviewed and published free of charge after acceptance.
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