Publications by authors named "Juan J Lozada-Castro"
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.
In this article we can observe the scanning by the literature for the pretreatment of steam explosion applied to lignocellulose biomass. A comparison of the chemical and physical characterization of potato peel as a lignocellulose biomass. Besides, the innovative design of a continuous reactor for the potato peel steam explosion process is shown, with specific temperature and pressure conditions on a pilot scale, detailing its parts.
View Article and Find Full Text PDFA 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 PDFBackground: The aim of this study was to develop an efficient method for cholesterol oxide product (COP) determination in irradiated and non-irradiated ready-to-eat foods with high water content by gas chromatography-flame ionisation detector after accelerated solvent extraction (ASE), and derivatisation with a silylating reagent.
Results: The ASE solvent was an 85:15 v/v petroleum ether/chloroform mixture at 40 °C and 1500 psi followed by solid phase extraction. The ASE method was compared with the established lixiviation method, proving an advantageous alternative which reduces analysis time by a factor of 15 and solvent volume by 50%, and minimises the use of chlorinated solvents.