Focused microwave aqueous extraction of chlorophenols from solid matrices and their analysis by chromatographic techniques

• Published in: Journal of Chromatography A Vol. 1069; no. 2; pp. 275 - 280
• Main Authors: Ganeshjeevan, R., Chandrasekar, Raghavan, Sugumar, Ponnusamy, Kadigachalam, Parasuraman, Radhakrishnan, Ganga
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.04.2005; Elsevier
• Subjects: Analytical chemistry; Animals; Carbonates; Chemistry; Chlorophenols; Chlorophenols - isolation & purification; Chromatographic methods and physical methods associated with chromatography; Chromatography, Gas; Chromatography, Liquid; Exact sciences and technology; Focused microwave extraction; Gas chromatographic methods; Microwave aqueous extraction; Microwaves; Other chromatographic methods; Soil Pollutants - analysis; Solvent-free extraction; Textiles - analysis; Wood; Focused microwave extraction; Chlorophenols; Solvent-free extraction; Microwave aqueous extraction; Trace analysis; Electron capture detector; Solid phase extraction; Chemical analysis; Halophenols; HPLC chromatography; Microwave heating; Derivatization; Solvent extraction; Operating conditions; Chemical enrichment; Gas chromatography; Reversed phase chromatography; Ultraviolet detector; Sample preparation; Solvent free; Solid form; Acetylation; Aqueous solution; Quantitative analysis
• ISSN: 0021-9673
• DOI: 10.1016/j.chroma.2005.01.101

Open-vessel focused microwave (FMW) extraction with a purely aqueous carbonate solution was used for the extraction of chlorophenols from various solid matrices. After SPE on C 18-bonded silica, the analytes were determined as such by LC–UV or, as their acetyl derivatives, by GC–ECD. The FMW aqueous extraction is efficient and rapid and no organic solvents are used. PCP was detected in several solid samples, with recoveries of 101–115% (RSD, 2–4%) relative to Soxhlet extraction. Similar recoveries were obtained for the other chlorophenols for spiked samples.