Análise de BTEX em água: comparação entre duas colunas cromatográficas/Analysis of BTEX in water: comparison between two chromatographic columns
This study aimed to implement and validate the GC-FID methodology to determine benzene, toluene, ethylbenzene and xylenes, or "BTEX," as contamination indicators in drinking water. The methodology included four steps: the first was to adequately separate analytes from the matrix by compari...
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| Veröffentlicht in: | Revista ambiente & água 2014-01, Vol.9 (1), p.149 |
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| creator | Carvalho, Danielle de Almeida de Oliveira, Rosália Maria da Silva, Célia Regina Sousa Martinhon, Priscila Tamiasso da Silva, Sérgio Alves |
| description | This study aimed to implement and validate the GC-FID methodology to determine benzene, toluene, ethylbenzene and xylenes, or "BTEX," as contamination indicators in drinking water. The methodology included four steps: the first was to adequately separate analytes from the matrix by comparing two different chromatography columns (Supelcowax(TM) 10 e HP-5); the second step was the extraction of six compounds of (BTEX) using various types of solvents, extraction times and speeds; the third step statistically analyzed the resulting data; and the final step validated the methodology. Column Supelcowax(TM)10 had better results in BTEX separation. The most effective recovery was achieved by using liquid-liquid micro-extraction with isooctane as solvent, which resulted in a recovery percentage of 57.8 to 89.8%. Linearity was observed for all compounds studied in the work range. [PUBLICATION ABSTRACT] |
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| fulltext | fulltext |
| identifier | EISSN: 1980-993X |
| ispartof | Revista ambiente & água, 2014-01, Vol.9 (1), p.149 |
| issn | 1980-993X |
| language | por |
| recordid | cdi_proquest_journals_1513203778 |
| source | DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Contamination Drinking water Environmental testing Pollutants Validation studies Water pollution |
| title | Análise de BTEX em água: comparação entre duas colunas cromatográficas/Analysis of BTEX in water: comparison between two chromatographic columns |
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