Optimization of a cloud point extraction procedure with response surface methodology for the quantification of dissolved iron in produced water from the petroleum industry using FAAS
Absorption spectroscopy
; Atomic absorption spectrometry
; Chemicals removal (water treatment)
; Extraction
; Iron
; Iron compounds
; Petroleum industry
; Box-Behnken design
; Cloud point extractions
; Cloud-point extraction
; Extraction parameters
; FAAS
; Flame atomic absorption spectrometry
; Inorganic elements
; Response surface methodology
; Produced Water
; iron
; petroleum
; triton x 114
; water
; iron
; macrogol derivative
; Nonidet P-40
; surfactant
; waste water
; atomic absorption spectroscopy
; experimental study
; extraction method
; iron
; oil industry
; optimization
; response surface methodology
; surfactant
; Article
; atomic absorption spectrometry
; Brazil
; extraction
; limit of detection
; limit of quantitation
; measurement accuracy
; measurement repeatability
; oil industry
; petrochemical industry
; process optimization
; quantitative analysis
; response surface method
; atomic absorption spectrometry
; chemistry
; isolation and purification
; pH
; procedures
; reproducibility
; standards
; waste water
; water management
; Brazil
; Hydrogen-Ion Concentration
; Iron
; Limit of Detection
; Oil and Gas Industry
; Polyethylene Glycols
; Reproducibility of Results
; Spectrophotometry, Atomic
; Surface-Active Agents
; Waste Water
; Water Purification
Scopus学科分类:
Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要:
The characterization of inorganic elements in the produced water (PW) samples is a difficult task because of the complexity of the matrix. This work deals with a study of a methodology for dissolved Fe quantification in PW from oil industry by flame atomic absorption spectrometry (FAAS) after cloud point extraction (CPE). The procedure is based on the CPE using PAN as complexing agent and Triton X-114 as surfactant. The best conditions for Fe extraction parameters were studied using a Box-Behnken design. The proposed method presented a LOQ of 0.010�μg�mL−�1and LOD of 0.003�μg�mL−�1. The precision of the method was evaluated in terms of repeatability, obtaining a coefficient of variation of 2.54%. The accuracy of the method was assessed by recovery experiments of Fe spiked that presented recovery of 103.28%. The method was applied with satisfactory performance to determine Fe by FAAS in PW samples. � 2016 Elsevier Ltd
Laborat�rio de Estudos em Qu�mica Aplicada, Departamento de Qu�mica Anal�tica e F�sico-Qu�mica, Universidade Federal do Cear�, Campus do Pici, Fortaleza, CE, Brazil; Universidade da Integra��o Internacional da Lusofonia Afro-brasileira, Campus dos Palmares, Km 51, Acarape, CE, Brazil
Recommended Citation:
Gondim T.A.,Guedes J.A.C.,Ribeiro L.P.D.,et al. Optimization of a cloud point extraction procedure with response surface methodology for the quantification of dissolved iron in produced water from the petroleum industry using FAAS[J]. Marine Pollution Bulletin,2017-01-01,114(2)