A novel method for iodate determination using cadmium sulfide quantum dots as fluorescence probes

Chun Ran Tang; Zhong Hua Su; Bao Gang Lin; Hao Wen Huang; Yun Long Zeng; Shuang Li; He Huang; Ya Jing Wang; Chun Xiang Li; Guo Li Shen; Ru Qin Yu

doi:10.1016/j.aca.2010.08.034

A novel method for iodate determination using cadmium sulfide quantum dots as fluorescence probes

Chun Ran Tang, Zhong Hua Su, Bao Gang Lin, Hao Wen Huang, Yun Long Zeng, Shuang Li, He Huang, Ya Jing Wang, Chun Xiang Li, Guo Li Shen, Ru Qin Yu

COLLEGE OF BIOTECHNOLOGY AND PHARMACEUTICAL ENGINEERING

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

54 Scopus citations

Abstract

We have developed a novel method for the determination of iodate based on the carboxymethyl cellulose-capped CdS quantum dots (QDs). Factors affecting the iodate detection were investigated, and the optimum conditions were determined. Under the optimum conditions, the relative fluorescence intensity of CdS quantum dots was linearly proportional to IO ₃ ^- over a concentration range from 1.0×10 ^-8 to 1.0×10 ^-5molL ^-1 with a correlation coefficient of 0.9987 and a detection limit of 6.0nmolL ^-1. Iodide, being oxidized by bromine to form iodate, was detected indirectly. The method was successfully applied to the determination of iodate and total amount of iodine in table salt samples. The related mechanism was also discussed.

Original language	English
Pages (from-to)	203-207
Number of pages	5
Journal	Analytica Chimica Acta
Volume	678
Issue number	2
DOIs	https://doi.org/10.1016/j.aca.2010.08.034
State	Published - 30 Sep 2010

Keywords

Carboxymethyl cellulose
CdS quantum dots
Determination
Fluorescence quenching
Iodate
Iodide

Access to Document

10.1016/j.aca.2010.08.034

Cite this

@article{faf1d3ae720d4f7c817b9c58d7c2ea06,

title = "A novel method for iodate determination using cadmium sulfide quantum dots as fluorescence probes",

abstract = "We have developed a novel method for the determination of iodate based on the carboxymethyl cellulose-capped CdS quantum dots (QDs). Factors affecting the iodate detection were investigated, and the optimum conditions were determined. Under the optimum conditions, the relative fluorescence intensity of CdS quantum dots was linearly proportional to IO 3 - over a concentration range from 1.0×10 -8 to 1.0×10 -5molL -1 with a correlation coefficient of 0.9987 and a detection limit of 6.0nmolL -1. Iodide, being oxidized by bromine to form iodate, was detected indirectly. The method was successfully applied to the determination of iodate and total amount of iodine in table salt samples. The related mechanism was also discussed.",

keywords = "Carboxymethyl cellulose, CdS quantum dots, Determination, Fluorescence quenching, Iodate, Iodide",

author = "Tang, {Chun Ran} and Su, {Zhong Hua} and Lin, {Bao Gang} and Huang, {Hao Wen} and Zeng, {Yun Long} and Shuang Li and He Huang and Wang, {Ya Jing} and Li, {Chun Xiang} and Shen, {Guo Li} and Yu, {Ru Qin}",

year = "2010",

month = sep,

day = "30",

doi = "10.1016/j.aca.2010.08.034",

language = "英语",

volume = "678",

pages = "203--207",

journal = "Analytica Chimica Acta",

issn = "0003-2670",

publisher = "Elsevier B.V.",

number = "2",

}

TY - JOUR

T1 - A novel method for iodate determination using cadmium sulfide quantum dots as fluorescence probes

AU - Tang, Chun Ran

AU - Su, Zhong Hua

AU - Lin, Bao Gang

AU - Huang, Hao Wen

AU - Zeng, Yun Long

AU - Li, Shuang

AU - Huang, He

AU - Wang, Ya Jing

AU - Li, Chun Xiang

AU - Shen, Guo Li

AU - Yu, Ru Qin

PY - 2010/9/30

Y1 - 2010/9/30

N2 - We have developed a novel method for the determination of iodate based on the carboxymethyl cellulose-capped CdS quantum dots (QDs). Factors affecting the iodate detection were investigated, and the optimum conditions were determined. Under the optimum conditions, the relative fluorescence intensity of CdS quantum dots was linearly proportional to IO 3 - over a concentration range from 1.0×10 -8 to 1.0×10 -5molL -1 with a correlation coefficient of 0.9987 and a detection limit of 6.0nmolL -1. Iodide, being oxidized by bromine to form iodate, was detected indirectly. The method was successfully applied to the determination of iodate and total amount of iodine in table salt samples. The related mechanism was also discussed.

AB - We have developed a novel method for the determination of iodate based on the carboxymethyl cellulose-capped CdS quantum dots (QDs). Factors affecting the iodate detection were investigated, and the optimum conditions were determined. Under the optimum conditions, the relative fluorescence intensity of CdS quantum dots was linearly proportional to IO 3 - over a concentration range from 1.0×10 -8 to 1.0×10 -5molL -1 with a correlation coefficient of 0.9987 and a detection limit of 6.0nmolL -1. Iodide, being oxidized by bromine to form iodate, was detected indirectly. The method was successfully applied to the determination of iodate and total amount of iodine in table salt samples. The related mechanism was also discussed.

KW - Carboxymethyl cellulose

KW - CdS quantum dots

KW - Determination

KW - Fluorescence quenching

KW - Iodate

KW - Iodide

UR - http://www.scopus.com/inward/record.url?scp=77957282026&partnerID=8YFLogxK

U2 - 10.1016/j.aca.2010.08.034

DO - 10.1016/j.aca.2010.08.034

M3 - 文章

C2 - 20888453

AN - SCOPUS:77957282026

SN - 0003-2670

VL - 678

SP - 203

EP - 207

JO - Analytica Chimica Acta

JF - Analytica Chimica Acta

IS - 2

ER -

A novel method for iodate determination using cadmium sulfide quantum dots as fluorescence probes

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this