title: Qualitative study of organic compounds in wastewaters of a swine slaughterhouse.
abstract: The main purpose of this work was the preliminary qualitative study of organic compounds in wastewaters of swine slaughterhouses. The samples were collected in a local abattoir and submitted to Liquid-Liquid Extraction (LLE) and Solid-phase Extraction (SPE) with XAD-4 resin as stationary phase. The instrumental analysis was performed by Gas Chromatography with Mass Spectrometer Detector (GC/MSD). The compounds present in the LLE and SPE extracts were identified by the GC/MSD library (Wiley). The results pointed out that SPE and LLE can extract practically the same classes of compounds at the same amounts. LLE works well for the extraction of polar organic compounds, with acidified samples, while SPE presents a better performance for the extraction of less polar organic compounds. Aldehydes were main class of the compounds extracted by SPE and LLE and decenal was the major aldehyde identified. Fatty alcohols and carboxylic acids were also identified but in minor proportions.
authors.affiliation: Chemistry Department, Universidade Regional Integrada do Alto Uruguai e das Missões, Campus de Erechim, Av. Sete de Setembro, 1621, 99700-000, Erechim-RS, Brazil.
authors.forename: Camila Pedott
authors.initials: CP
authors.lastname: Aguilar
authors.forename: Marcieli
authors.initials: M
authors.lastname: Peruzzolo
authors.forename: Marco
authors.initials: M
authors.lastname: Di Luccio
authors.forename: Rogério Marcos
authors.initials: RM
authors.lastname: Dallago
authors.forename: Irajá Do Nascimento
authors.initials: Ido N
authors.lastname: Filho
mesh_terms: D000003:Abattoirs; D000818:Animals; D002849:Chromatography, Gas; D013058:Mass Spectrometry; D009930:Organic Chemicals / Q000032:analysis* / Q000737:chemistry; D052616:Solid Phase Extraction; D013552:Swine; D014865:Waste Disposal, Fluid
chemical_list: D009930:Organic Chemicals