Publications by authors named "Jhon Jairo Rios-Acevedo"
Article Synopsis
- Developing sensitive and selective measurement techniques for detecting trace compounds, particularly organochlorine pesticides in water, is crucial in analytical chemistry while adhering to green chemistry principles.
- The study utilized a solid-phase microextraction (SPME) method with an innovative clay thin film sorbent coated on nickel-titanium wire, successfully extracting multiple pesticides with high efficiency and low detection limits.
- This eco-friendly method shows potential for improving analytical practices in environmental monitoring, offering high recovery rates and reproducibility, which could positively impact public health.
A new sorbent material based on modified clay with ionic liquid immobilized into an agarose film was developed as part of this study. It was applied to determine organochlorine pollutants, like disinfection byproducts, through headspace solid-phase microextraction-gas chromatography-electron capture detection (HS-SPME-GC-ECD). The disinfection byproducts determined in this study were used as model molecules because they were volatile compounds, with proven severe effects on human health.
View Article and Find Full Text PDFThe following work presents the development of the solid phase extraction technique with rotary disk (RDSE) in which the analysis for seven triazines in surface waters was first implemented. All the variables involved in extraction have been studied and optimized using a solid phase of octadecyl (C18) deposited on surface of the disk. Triazines were analyzed quantitatively by gas chromatography with simple quadruple mass detector, recoveries obtained for seven triazines were between 80% and 120%, accuracy expressed as RSD was between 3.
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