Fluorescent Quenching Method for the Detection of 2,4,6-Trinitrophenol Using Riboflavin

doi:10.11944/j.issn.1000-0518.2016.05.150367

Chinese Journal of Applied Chemistry ›› 2016, Vol. 33 ›› Issue (5): 606-610.DOI: 10.11944/j.issn.1000-0518.2016.05.150367

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Fluorescent Quenching Method for the Detection of 2,4,6-Trinitrophenol Using Riboflavin

HUANG Xiaomei(),DENG Xiang

Sichuan Key Laboratory of Characteristic Plant Development Research,Department of Chemistry and Chemical Engineering,Sichuan University of Arts and Science,Dazhou,Sichuan 635000,China

Received:2015-10-19 Accepted:2016-01-12 Published:2016-04-29 Online:2016-04-29
Contact: HUANG Xiaomei
Supported by:
Supported by the Fund of Sichuan Provincial Science and Technology Department(No.2015JY0033), the Key Project of Sichuan Provincial Education Department(No.13ZA0101), the Project of “Characteristic Plant Development Research” Key Laboratory of Sichuan Province(No.sctz201305), the Key Project of Sichuan University of Arts and Science (No.2014Z007Z)

Abstract

Abstract:

A novel method for the determination of 2,4,6-trinitrophenol has been developed based on fluorescent quenching of riboflavin by 2,4,6-trinitrophenol(TNP) in aqueous solutions. The proposed fluorescent quenching method for TNP detection at pH=6.2 using 0.2 mol/L phosphate(NaH₂PO₄-Na₂HPO₄) as buffer solution responses within 1 min and with a broad linear relationship from 2.5 to 1000 μmol/L(r=0.9938). The limit of detection for TNP is 0.55 μmol/L. When 5.00 and 20.00 μmol/L TNP is added to different water samples, the recovery ranges from 98.2% to 103.5%. Furthermore, this method is simple, selective, and with wide linear range. Therefore, it can be applied in the determination of 2,4,6-trinitrophenol in real samples.

Key words: riboflavin, trinitrophenol(TNP), fluorescent quenching method

HUANG Xiaomei, DENG Xiang. Fluorescent Quenching Method for the Detection of 2,4,6-Trinitrophenol Using Riboflavin[J]. Chinese Journal of Applied Chemistry, 2016, 33(5): 606-610.

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Fluorescent Quenching Method for the Detection of 2,4,6-Trinitrophenol Using Riboflavin

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