On-line concentration of triazine herbicides in microemulsion electrokinetic chromatography by electrokinetic injection assisted micelle to cyclodextrin stacking.
Electrokinetic injection
Micelle to cyclodextrin stacking
Microemulsion electrokinetic chromatography
Triazine herbicides
Journal
Journal of chromatography. A
ISSN: 1873-3778
Titre abrégé: J Chromatogr A
Pays: Netherlands
ID NLM: 9318488
Informations de publication
Date de publication:
27 Sep 2020
27 Sep 2020
Historique:
received:
09
06
2020
revised:
27
07
2020
accepted:
28
07
2020
pubmed:
22
8
2020
medline:
21
10
2020
entrez:
22
8
2020
Statut:
ppublish
Résumé
A fast, simple, environmentally friendly and sensitive on-line concentration method using microemulsion system as background solution (BGS) was developed for the trace detection of propazine, atrazine, simazine in food samples. The electrokinetic injection assisted micelle to cyclodextrin stacking (MCDS) was designed for the enrichment of target compounds. The factors affected enrichment performance, such as the kind of CDs, the amount of CDs, the concentration of methanol in BGS, the concentration of micelle in sample matrix, the concentration of phosphoric acid in BGS and the sample injection time were optimized. The optimized electrophoretic condition was obtained as following: 50 mM α-CD, 20 mM SDS in sample matrix., 80 mM PA and 20% MeOH (v/v) in BGS, sample solution by electrokinetic injection at -10 kV for 80 s. Under the optimized conditions described above, the linear range was 0.1-20 ug/mL with a good linear relationship with a correlation coefficient (r) ≥ 0.9985. The SEFs for the propazine, atrazine, simazine were found to be 123, 85 and 62 respectively. The proposed MCDS-MEEKC method provided an efficient method for trace analysis of triazine herbicides in honey and dendrobium officinale samples.
Identifiants
pubmed: 32822978
pii: S0021-9673(20)30714-7
doi: 10.1016/j.chroma.2020.461438
pii:
doi:
Substances chimiques
Cyclodextrins
0
Herbicides
0
Micelles
0
Phosphoric Acids
0
Triazines
0
phosphoric acid
E4GA8884NN
Atrazine
QJA9M5H4IM
Simazine
SG0C34SMY3
propazine
UYP5U99Q5T
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
461438Informations de copyright
Copyright © 2020. Published by Elsevier B.V.
Déclaration de conflit d'intérêts
Declaration of Competing Interest We declare that we have no financial and personal relationships with other people or organizations that can inappropriately influence our work, there is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construed as influencing the position presented in, or the review of, the manuscript entitled, “On-line concentration of triazine herbicides in microemulsion electrokinetic chromatography by electrokinetic injection assisted micelle to cyclodextrin stacking”.