One-pot preparation of an acryloyled ß-cyclodextrin-silica hybrid monolithic column and its application for determination of carbendazim and carbaryl.
Food Chem
; 269: 181-186, 2018 Dec 15.
Article
in En
| MEDLINE
| ID: mdl-30100422
ABSTRACT
This work describes, for the first time, an acryloyled ß-cyclodextrin hybrid monolith column was synthesized, under aqueous-phase conditions, and used for solid-phase microextraction of carbendazim and carbaryl. The monolithic column was characterized using scanning electron microscopy, nitrogen adsorption-desorption, thermogravimetric analysis and Fourier transform infrared spectroscopy, and used as the adsorbent for solid phase microextraction (SPME) of carbendazim and carbaryl. After optimization of the SPME conditions, a simple and sensitive SPME-HPLC method was developed for the determination of carbendazim and carbaryl in leafy vegetables. The method exhibited a good liner response in the range 5-400⯵g/kg (R2â¯=â¯0.9994) for carbendazim and 10-400⯵g/kg (R2â¯=â¯0.9996) for carbaryl, respectively. The limits of detection were 1.0 and 1.5⯵g/kg for carbendazim and carbaryl, respectively, in leafy vegetables. Recoveries ranged from 92.6% to 110.1%, and the relative standard deviations were less than 6.1%.
Key words
2,2-Azobisisobutyronitrile (PubChem CID: 6547); 3-Methacryloxypropyltrimethoxysilane (PubChem CID: 17318); Acetone (PubChem CID: 180); Acryloyled ß-CD-silica hybrid monolithic column; Acrylyl chloride (PubChem CID: 13528); Aqueous-phase synthesis; Carbaryl; Carbaryl (PubChem CID: 6129); Carbendazim; Carbendazim (PubChem CID: 25429); Ethylene Glycol Dimethacrylate (PubChem CID: 7355); Methyltrimethoxysilane (PubChem CID: 14456); N,N-Dimethylformamide (PubChem CID: 6228); Solid phase microextraction; ß-CD (PubChem CID: 4440410)
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Benzimidazoles
/
Carbamates
/
Carbaryl
/
Beta-Cyclodextrins
Language:
En
Journal:
Food Chem
Year:
2018
Document type:
Article
Affiliation country:
China