Analytical development of phenol derivatives in water using liquid chromatography
A high-performance liquid chromatographic analytical method has been developed for the determination of chlorine and nitrophenols at trace level (µg/L) in water, using a reversed-phase elution gradient and an ultraviolet (UV) detector. A Solid Phase Extraction (SPE) method was employed, which involv...
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Formato: | Online |
| Lenguaje: | spa |
| Publicado: |
Universidad Autónoma de Baja California
2021
|
| Acceso en línea: | https://recit.uabc.mx/index.php/revista/article/view/93 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| Sumario: | A high-performance liquid chromatographic analytical method has been developed for the determination of chlorine and nitrophenols at trace level (µg/L) in water, using a reversed-phase elution gradient and an ultraviolet (UV) detector. A Solid Phase Extraction (SPE) method was employed, which involved the design of a two-dimensional pre-column system coupled with high-performance liquid chromatography (HPLC) in order to preconcentrate, purify and isolate the solutes in environmental aqueous matrices. These phenolic compounds are considered priority pollutants by the United States Environmental Protection Agency (USEPA); the compounds are 4,6-dinitro-2-methyl phenol, 2,4-dimethylphenol, 4-chloro-3-methyl phenol, 2,4-dichlorophenol, 2,4,6-trichlorophenol, and pentachlorophenol. The developed method is simple, fast, accurate, and precise. Recoveries greater than 90 % were obtained for the phenols 4,6-dinitro-2-methyl phenol, 2,4-dichlorophenol and 2,4,6-trichlorophenol, approximately 80 % for pentachlorophenol and 52 % for 2,4-dimethylphenol. In addition, an acceptable precision (CV ˂ 5 %) was obtained for all solutes at these concentration levels. |
|---|
@UABCInstitucional
UABC_Oficial
@UABC_Oficial
Tel: +52 686 551 82 00
cienciaabierta@uabc.edu.mx