SPME-GC-FID method development for analyzing cyclohexanone hydrogenation products

Abstract

Este trabalho apresenta o desenvolvimento de um método simples, rápido e preciso para análise dos produtos da hidrogenação eletrocatalítica da ciclohexanona com a técnica de microextração em fase sólida, usando cromatografia a gás com detector de ionização por chama. A otimização preliminar do método foi realizada através de ferramentas quimiométricas. Os resultados de LOD e LOQ foram 0,50% de conversão ou 0,78 mg L -1 e 1,20% de conversão ou 1,86 mg L -1 , respectivamente. A curva analítica demonstra boa linearidade (R 2 = 0,9936).This work presents a method development for analyzing electrocatalytic hydrogenation products of cyclohexanone with the simple, fast and accurate SPME, coupled with classic gas chromatographic methods using flame ionization detection. Preliminar method optimization was made using chemometric tools. LOD and LOQ obtained were 0.50% conversion or 0.78 mg L -1 and 1.20% conversion or 1.86 mg L -1 respectively. The analytical curve obtained displays good linearity (R 2 = 0.9936).

Comparative Study of Trace Level of Extracted Mercury in Different Water Samples with Aided Multivariate Statistical Analysis

“…One of the most applied techniques in analytical methods is solid phase microextraction, which is simple, fast and solvent free. This technique is a combination of pre concentrate, derivatization, extraction and clean up steps into a single device [9][10][11].…”

Use of a Natural Sorbent as Alternative Solid-Phase Microextraction Coating for the Determination of Polycyclic Aromatic Hydrocarbons in Water Samples by Gas Chromatography-Mass Spectrometry

“…It also allows easy coupling with chromatographic systems, reuse of the fiber and automation of the sample preparation step. 1,16,17 SPME is based on the distribution of the analytes between the sample matrix and the extraction phase (fiber), combining sampling, isolation and enrichment in a single step. 18,19 One important factor in relation to achieving high extraction efficiency in SPME is the fiber coating.…”