期刊名称：Revista Eletrônica em Gestão, Educação e Tecnologia Ambiental
电子版ISSN：2236-1170
出版年度：2017
卷号：21
期号：2
页码：147-157
DOI：10.5902/2236117027766
语种：English
出版社：Federal University of Santa Maria (UFSM)
摘要：The study accomplished to analyze, identify and quantify 2,4-dichlorophenol employing high efficiency chromatography with a previously validated analytical methodology. The validation was made by using some analytical parameters: linearity, precision, accuracy, quantification limit (LOQ) and detection limit (LOD). The analytical curve was linear for the studied range of concentration (10 up to 100 mg.L -1 ) presenting a linear regression coefficient (R 2 ) above 0,99. Regarding the methodology accuracy, a repeatability analysis was performed by observing a coefficient of variance (CV) below 20% for each of the concentrations used. The LOD and LOQ were adequate for the analyzed compound, showing the values of 1.42 mg.L -1 and 4.30 mg.L -1 , respectively. The tests to verify the accuracy, by the recovery method provided values above 79%, thus resulting in specific, sensitive, precise, linear and accurate methodology in the studied concentration range. In the advanced oxidative process UV/H 2 O 2 , the compound was degraded to 88.04% under the following experimental conditions: [H 2 O 2 ] = 1016.0 mg∙L -1 in 120 minutes. Therefore, it can be affirmed that the treatment employed can be used as an alternative for industrial effluent treatment with phenolic compounds.
其他摘要：The study accomplished to analyze, identify and quantify 2,4-dichlorophenol employing high efficiency chromatography with a previously validated analytical methodology. The validation was made by using some analytical parameters: linearity, precision, accuracy, quantification limit (LOQ) and detection limit (LOD). The analytical curve was linear for the studied range of concentration (10 up to 100 mg.L -1 ) presenting a linear regression coefficient (R 2 ) above 0,99. Regarding the methodology accuracy, a repeatability analysis was performed by observing a coefficient of variance (CV) below 20% for each of the concentrations used. The LOD and LOQ were adequate for the analyzed compound, showing the values of 1.42 mg.L -1 and 4.30 mg.L -1 , respectively. The tests to verify the accuracy, by the recovery method provided values above 79%, thus resulting in specific, sensitive, precise, linear and accurate methodology in the studied concentration range. In the advanced oxidative process UV/H 2 O 2 , the compound was degraded to 88.04% under the following experimental conditions: [H 2 O 2 ] = 1016.0 mg∙L -1 in 120 minutes. Therefore, it can be affirmed that the treatment employed can be used as an alternative for industrial effluent treatment with phenolic compounds.
