A simple method for the determination of benzoic acid based on room temperature phosphorescence of 1-bromopyrene/γ-cyclodextrin complex in water.
Talanta
; 162: 423-427, 2017 Jan 01.
Article
en En
| MEDLINE
| ID: mdl-27837851
ABSTRACT
The addition of benzoic acid (BA) to an aqueous solution of 1-bromopyrene (1-BrPy) and γ-cyclodextrin (γ-CD) was found to form a ternary 1-BrPy/γ-CD/BA inclusion complex that exhibited strong and stable room temperature phosphorescence (RTP) without deoxygenation. The effects of several different factors on the RTP emission from the inclusion complex were subsequently investigated. A good linear relationship between the RTP intensity and the concentration of BA over the range of 0-0.70mM was identified (R2=0.9917), and the detection limit was determined to be 0.68µm. Application of the new method was successfully proved for the detection of BA in various beverages with satisfactory results.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Pirenos
/
Ácido Benzoico
/
Gamma-Ciclodextrinas
/
Mediciones Luminiscentes
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Talanta
Año:
2017
Tipo del documento:
Article
País de afiliación:
China