Development of an azo-naphthol-based probe for detecting hypochlorite (ClO−) via color change in aqueous solution

Chang Joo Rha; Hangyul Lee; Cheal Kim

doi:10.1016/j.inoche.2020.108244

Development of an azo-naphthol-based probe for detecting hypochlorite (ClO⁻) via color change in aqueous solution

Chang Joo Rha, Hangyul Lee, Cheal Kim

Dept. of Fine Chemistry

Seoul National University of Science and Technology (SNUST)

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

9 Scopus citations

Abstract

A novel azo-naphthol-based colorimetric probe APBN (sodium 4-((E)-(4-(((E)-(2-hydroxynaphthalen-1-yl)methylene)amino)phenyl)diazenyl)benzenesulfonate) was synthesized and applied for detecting hypochlorite (ClO⁻) in aqueous solution. It showed a good selectivity toward ClO⁻ by color change from yellow to colorless via the cleavage of C[dbnd]N bond. Detection limit for ClO⁻ was determined as 0.47 μM. APBN can be used to determine ClO⁻ in real water sample, and also successfully detect ClO⁻ using test kit coated with APBN. The sensing mechanism of APBN to ClO⁻ was illustrated by theoretical calculation.

Original language	English
Article number	108244
Journal	Inorganic Chemistry Communications
Volume	121
DOIs	https://doi.org/10.1016/j.inoche.2020.108244
State	Published - Nov 2020

Keywords

Azo dyes
Colorimetric sensor
Hypochlorite
Naphthol group
Test kit

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10.1016/j.inoche.2020.108244

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title = "Development of an azo-naphthol-based probe for detecting hypochlorite (ClO−) via color change in aqueous solution",

abstract = "A novel azo-naphthol-based colorimetric probe APBN (sodium 4-((E)-(4-(((E)-(2-hydroxynaphthalen-1-yl)methylene)amino)phenyl)diazenyl)benzenesulfonate) was synthesized and applied for detecting hypochlorite (ClO−) in aqueous solution. It showed a good selectivity toward ClO− by color change from yellow to colorless via the cleavage of C[dbnd]N bond. Detection limit for ClO− was determined as 0.47 μM. APBN can be used to determine ClO− in real water sample, and also successfully detect ClO− using test kit coated with APBN. The sensing mechanism of APBN to ClO− was illustrated by theoretical calculation.",

keywords = "Azo dyes, Colorimetric sensor, Hypochlorite, Naphthol group, Test kit",

author = "Rha, \{Chang Joo\} and Hangyul Lee and Cheal Kim",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

month = nov,

doi = "10.1016/j.inoche.2020.108244",

language = "English",

volume = "121",

journal = "Inorganic Chemistry Communications",

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T1 - Development of an azo-naphthol-based probe for detecting hypochlorite (ClO−) via color change in aqueous solution

AU - Rha, Chang Joo

AU - Lee, Hangyul

AU - Kim, Cheal

PY - 2020/11

Y1 - 2020/11

N2 - A novel azo-naphthol-based colorimetric probe APBN (sodium 4-((E)-(4-(((E)-(2-hydroxynaphthalen-1-yl)methylene)amino)phenyl)diazenyl)benzenesulfonate) was synthesized and applied for detecting hypochlorite (ClO−) in aqueous solution. It showed a good selectivity toward ClO− by color change from yellow to colorless via the cleavage of C[dbnd]N bond. Detection limit for ClO− was determined as 0.47 μM. APBN can be used to determine ClO− in real water sample, and also successfully detect ClO− using test kit coated with APBN. The sensing mechanism of APBN to ClO− was illustrated by theoretical calculation.

AB - A novel azo-naphthol-based colorimetric probe APBN (sodium 4-((E)-(4-(((E)-(2-hydroxynaphthalen-1-yl)methylene)amino)phenyl)diazenyl)benzenesulfonate) was synthesized and applied for detecting hypochlorite (ClO−) in aqueous solution. It showed a good selectivity toward ClO− by color change from yellow to colorless via the cleavage of C[dbnd]N bond. Detection limit for ClO− was determined as 0.47 μM. APBN can be used to determine ClO− in real water sample, and also successfully detect ClO− using test kit coated with APBN. The sensing mechanism of APBN to ClO− was illustrated by theoretical calculation.

KW - Azo dyes

KW - Colorimetric sensor

KW - Hypochlorite

KW - Naphthol group

KW - Test kit

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DO - 10.1016/j.inoche.2020.108244

M3 - Article

AN - SCOPUS:85091251937

SN - 1387-7003

VL - 121

JO - Inorganic Chemistry Communications

JF - Inorganic Chemistry Communications

M1 - 108244

ER -

Development of an azo-naphthol-based probe for detecting hypochlorite (ClO⁻) via color change in aqueous solution

Abstract

Keywords

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