A simple colorimetric chemosensor for relay detection of Cu2+ and S2− in aqueous solution

Min Seon Kim; Jae Min Jung; Hye Mi Ahn; Cheal Kim

doi:10.1080/00958972.2017.1420787

A simple colorimetric chemosensor for relay detection of Cu²⁺ and S²⁻ in aqueous solution

Min Seon Kim, Jae Min Jung, Hye Mi Ahn, Cheal Kim

Dept. of Fine Chemistry

Seoul National University of Science and Technology (SNUST)

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

A simple colorimetric chemosensor 1 was developed for the sequential detection of Cu²⁺ and S²⁻. Sensor 1 could rapidly detect Cu²⁺ by an obvious color change from colorless to yellow. The binding mode of 1 to Cu²⁺ was determined to be a 1:1 complexation stoichiometry through Job plot and ESI-mass spectrometry analyses. The sensing mechanism of Cu²⁺ by 1 was proposed by theoretical calculations. Importantly, the detection limit for Cu²⁺ was found to be 0.12 μM, which was much lower than the recommended value (31.5 μM) of the World Health Organization (WHO). Additionally, 1 could detect and quantify Cu²⁺ in real water samples. Moreover, the resulting 1-Cu²⁺ complex could be used as a highly selective colorimetric sensor for S²⁻ in the presence of various anions without any interference. The detection limit for S²⁻ was determined to be 1.66 μM, which was much lower than the guideline (14.8 μM) recommended by WHO in fresh water.

Original language	English
Pages (from-to)	355-370
Number of pages	16
Journal	Journal of Coordination Chemistry
Volume	71
Issue number	2
DOIs	https://doi.org/10.1080/00958972.2017.1420787
State	Published - 17 Jan 2018

Keywords

colorimetric sensor
Copper
relay detection
sulfide
theoretical calculations

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title = "A simple colorimetric chemosensor for relay detection of Cu2+ and S2− in aqueous solution",

abstract = "A simple colorimetric chemosensor 1 was developed for the sequential detection of Cu2+ and S2−. Sensor 1 could rapidly detect Cu2+ by an obvious color change from colorless to yellow. The binding mode of 1 to Cu2+ was determined to be a 1:1 complexation stoichiometry through Job plot and ESI-mass spectrometry analyses. The sensing mechanism of Cu2+ by 1 was proposed by theoretical calculations. Importantly, the detection limit for Cu2+ was found to be 0.12 μM, which was much lower than the recommended value (31.5 μM) of the World Health Organization (WHO). Additionally, 1 could detect and quantify Cu2+ in real water samples. Moreover, the resulting 1-Cu2+ complex could be used as a highly selective colorimetric sensor for S2− in the presence of various anions without any interference. The detection limit for S2− was determined to be 1.66 μM, which was much lower than the guideline (14.8 μM) recommended by WHO in fresh water.",

keywords = "colorimetric sensor, Copper, relay detection, sulfide, theoretical calculations",

author = "Kim, \{Min Seon\} and Jung, \{Jae Min\} and Ahn, \{Hye Mi\} and Cheal Kim",

note = "Publisher Copyright: {\textcopyright} 2017 Informa UK Limited, trading as Taylor \& Francis Group.",

year = "2018",

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doi = "10.1080/00958972.2017.1420787",

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T1 - A simple colorimetric chemosensor for relay detection of Cu2+ and S2− in aqueous solution

AU - Kim, Min Seon

AU - Jung, Jae Min

AU - Ahn, Hye Mi

AU - Kim, Cheal

PY - 2018/1/17

Y1 - 2018/1/17

N2 - A simple colorimetric chemosensor 1 was developed for the sequential detection of Cu2+ and S2−. Sensor 1 could rapidly detect Cu2+ by an obvious color change from colorless to yellow. The binding mode of 1 to Cu2+ was determined to be a 1:1 complexation stoichiometry through Job plot and ESI-mass spectrometry analyses. The sensing mechanism of Cu2+ by 1 was proposed by theoretical calculations. Importantly, the detection limit for Cu2+ was found to be 0.12 μM, which was much lower than the recommended value (31.5 μM) of the World Health Organization (WHO). Additionally, 1 could detect and quantify Cu2+ in real water samples. Moreover, the resulting 1-Cu2+ complex could be used as a highly selective colorimetric sensor for S2− in the presence of various anions without any interference. The detection limit for S2− was determined to be 1.66 μM, which was much lower than the guideline (14.8 μM) recommended by WHO in fresh water.

AB - A simple colorimetric chemosensor 1 was developed for the sequential detection of Cu2+ and S2−. Sensor 1 could rapidly detect Cu2+ by an obvious color change from colorless to yellow. The binding mode of 1 to Cu2+ was determined to be a 1:1 complexation stoichiometry through Job plot and ESI-mass spectrometry analyses. The sensing mechanism of Cu2+ by 1 was proposed by theoretical calculations. Importantly, the detection limit for Cu2+ was found to be 0.12 μM, which was much lower than the recommended value (31.5 μM) of the World Health Organization (WHO). Additionally, 1 could detect and quantify Cu2+ in real water samples. Moreover, the resulting 1-Cu2+ complex could be used as a highly selective colorimetric sensor for S2− in the presence of various anions without any interference. The detection limit for S2− was determined to be 1.66 μM, which was much lower than the guideline (14.8 μM) recommended by WHO in fresh water.

KW - colorimetric sensor

KW - Copper

KW - relay detection

KW - sulfide

KW - theoretical calculations

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JO - Journal of Coordination Chemistry

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ER -

A simple colorimetric chemosensor for relay detection of Cu²⁺ and S²⁻ in aqueous solution

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Keywords

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