A fluorescent probe for Hg2+ sensing in solutions and living cells with a wide working pH range

Han, Zhixiang; Zhu, Bo-Song; Wu, Tong-Liang; Yang, Qingqing; Xue, Yan; Zhang, Zhen; Wu, Xiangyang

doi:10.1016/j.cclet.2013.10.027

Cited by 24 publications

(2 citation statements)

References 23 publications

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“…Therefore, it is especially important to study the efficient detection of cadmium ion concentration. The current detection methods are: atomic emission spectroscopy, mass spectrometry, fluorescence analysis (Georgiev et al, 2014;Ghasemi, 2009), electrochemical analysis method (Han, 2013), spectrophotometry (Mohanty et al, 2018), atomic absorption spectrometry ( Han et al, 2014;HJ-763, 2015). Atomic absorption spectroscopy (Huang et al, 2013;Huang et al, 2012) overcomes the shortcomings of the traditional method, which has the advantages of low detection line, easy operation, and fast analysis speed (Kai, 2015) However, the range of atomic absorption bands is narrow, and it is difficult to analyze complex samples.…”

Section: Introductionmentioning

confidence: 99%

Development of a Measuring Instrument for Rapid Detection of Cadmium Ions in Water Environment

Yang¹

2019

Appl. Ecol. Env. Res.

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In this study, heavy metal cadmium ions (Cd 2+ ) in water environment were studied, and the existing Cd 2+ colorimetric system was simplified. Based on colorimetry and spectroscopy, a portable analyzer for rapid detection of Cd 2+ was developed. This study simplifies the tedious and complex preprocessing and completes the colorimetric experiment. The measuring instrument is mainly divided into an optical path module and a circuit module. The optical path module converts the concentration of cadmium ions into an optical signal, and the circuit module realizes functions of converting, amplifying, data processing, viewing management data, and uploading data of the optical signal. After the detector was completed, several system performance analyses were performed, and low power consumption, antiinterference, and repeatability tests were taken to verify the accuracy of the measurement. The experimental results show that the determination coefficient of the model and the chemical value of the colorimetric reaction is R 2 = 0.934, the detection limit is 0.1047 mg/L, the detection range is 0.1~1 mg/L, and the variation coefficient of cadmium content index is less than 1.0%. The test results show that the tester has good accuracy and repeatability. At the same time, compared with other related instruments, the meter also has the advantages of multiple functions, small size, portability, convenient use, and low power consumption.

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Section: Introductionmentioning

confidence: 99%

Development of a Measuring Instrument for Rapid Detection of Cadmium Ions in Water Environment

Yang¹

2019

Appl. Ecol. Env. Res.

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“…This sensing approach clearly is a promising one as to development of commercial Hg 2+ indicators, such as paper test strips that can be assessed visually [17,18]. Such optical sensors are a promising line of research in development of measurement and monitoring methods for various objects [19][20][21]. All of these methods require the preconcentration procedure [22][23][24] including the use of structured polymers [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

A Simple Method for Colorimetric and Naked-Eye Detection of Mercury in Fish Products

Saranchina

Dudkina

Gavrilenko

et al. 2019

MSF

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A new colorimetric optode has been developed for preconcentration and visual determination of mercury ions in fish products. This optode is based on the color reaction of copper diethyldithiocarbamate with Hg2+ in the body of polymethylmethacrylate matrix. The optode exhibited sensitivity through the change of color from brown to colorless, which could be easily detected by naked-eye or spectrophotometric method. The influence of acidity, contact time and interference of foreign metal ions has been studied. The optode revealed good linearity in the range of 20-360 μg·L-1, with a limit of detection of 8 μg·L-1 Hg2+ at pH 5.2 and response time of 10 min.

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A Rational Designed Dual‐channel Chemosensor for Mercury Ions Based on Hydrolysis of Schiff Base

Shi

et al. 2014

Chin. J. Chem.

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A bilateral Schiff base is reported for the colorimetric and fluorometric dual-channel sensing of Hg 2＋ ions by taking advantage of the hydrolysis of carbon-nitrogen double bond, altering an ICT state mechanism and then Hg 2＋ ions coordinating with amino moieties of 1,5-DAN and leading to the aggregation of 1,5-DAN. Meanwhile, it formed a stable neutral complex of amino-Hg-amino. In addition, test strips based on L were fabricated, which also exhibited a good selectivity to Hg 2＋ as in solution. This work provides a novel approach for the selective recognition of mercury ions. Notably, the color changes are very significant and all the recognition processes can be observed by the naked eyes. We believe the test strips can act as a convenient and efficient Hg 2＋ test kit.

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A fluorescent probe for Hg2+ sensing in solutions and living cells with a wide working pH range

Cited by 24 publications

References 23 publications

Development of a Measuring Instrument for Rapid Detection of Cadmium Ions in Water Environment

Development of a Measuring Instrument for Rapid Detection of Cadmium Ions in Water Environment

A Simple Method for Colorimetric and Naked-Eye Detection of Mercury in Fish Products

A Rational Designed Dual‐channel Chemosensor for Mercury Ions Based on Hydrolysis of Schiff Base

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