Inclusion Complex of O-phthalaldehyde-Buprofezin with Dimethyl-β-Cyclodextrin Using Thermochemically-Induced Fluorescence Derivatization (TIFD) Method and its Analytical Application in Waters.
Journal
Journal of fluorescence
ISSN: 1573-4994
Titre abrégé: J Fluoresc
Pays: Netherlands
ID NLM: 9201341
Informations de publication
Date de publication:
May 2019
May 2019
Historique:
received:
26
01
2019
accepted:
06
05
2019
pubmed:
6
6
2019
medline:
6
6
2019
entrez:
6
6
2019
Statut:
ppublish
Résumé
Improvement of the TIFD method to determine buprofezin (BUP) founded on the O-phthalaldehyde (OPA)-thermoproduct complex of buprofezin (OPA-BUP) with dimethyl-β-cyclodextrin (DMβCD) was investigated at 25 °C. The TIFD method developed in DMβCD medium, was optimized with respect to the reaction time, DMβCD concentration and pH. Based on the inclusion reaction, the OPA-BUP: DMβCD inclusion complex was developed in two aqueous media pH 7 and pH 13. A 1:1 stoichiometric ratio of OPA-BUP: DMβCD complex was obtained. The binding constants (K) and Gibbs energy (ΔG°) values increasing and decreasing with pH, respectively, show the spontaneous and thermodynamically favorable at 25 °C of the inclusion complexes formation. Normalized TIFD spectra were measured at 425 nm for emission and at 345 nm for excitation. Limits of detection (LOD) and quantification (LOQ) obtained, according to the pH, were in the ranges 0.05-0.1 ng mL
Identifiants
pubmed: 31165311
doi: 10.1007/s10895-019-02386-0
pii: 10.1007/s10895-019-02386-0
doi:
Types de publication
Journal Article
Langues
eng
Pagination
515-522Subventions
Organisme : We thank the service of Cooperation and Cultural Action of the Embassy of France in Senegal (763818C) who has funded this work
ID : 763818C
Organisme : We thank the service of Cooperation and Cultural Action of the Embassy of France in Senegal (763818C) who has funded this work
ID : 763818C
Organisme : We thank the service of Cooperation and Cultural Action of the Embassy of France in Senegal (763818C) who has funded this work
ID : 763818C
Organisme : We thank the service of Cooperation and Cultural Action of the Embassy of France in Senegal (763818C) who has funded this work
ID : 763818C
Organisme : We thank the service of Cooperation and Cultural Action of the Embassy of France in Senegal (763818C) who has funded this work
ID : 763818C
Organisme : We thank the service of Cooperation and Cultural Action of the Embassy of France in Senegal (763818C) who has funded this work
ID : 763818C
Organisme : We thank the service of Cooperation and Cultural Action of the Embassy of France in Senegal (763818C) who has funded this work
ID : 763818C
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