pressurized fluid extraction
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Author(s):  
Jessica Maria Ferreira de Almeida-Couto ◽  
Karen Keli Barbosa Abrantes ◽  
Natália Stevanato ◽  
Wenes Ramos da Silva ◽  
Alberto Wisniewski ◽  
...  




2017 ◽  
Vol 17 (3) ◽  
pp. 394 ◽  
Author(s):  
Rinawati Rinawati ◽  
Hideshige Takada

In this study, the distribution and source identification of sedimentary PAHs from 13 rivers running through Jakarta City were investigated. Freeze-dried sediment samples were extracted by pressurized fluid extraction and purified by two-step of column chromatography. PAHs were identified and quantified by gas chromatography-mass spectrometry (GC-MS). High concentrations of PAHs, ranging from 1992 to 17635 ng/g-dw, were observed at all sampling locations. Ratios of alkylated PAHs to parent PAHs exhibited both petrogenic and pyrogenic signatures with predominantly petrogenic inputs. High hopanne concentrations (4238-40375 ng/g dry sediment) supported the petrogenic input to Jakarta’s rivers. The high concentration of PAHs is indicator for organic micropollutant in the aquatic urban environment in Jakarta that may have the potential to cause adverse effect to the environment.



2017 ◽  
pp. 721-748
Author(s):  
Marleny D.A. Saldaña ◽  
Idaresit Ekaette ◽  
Carla S. Valdivieso Ramirez ◽  
Jane S. dos Reis Coimbra ◽  
Lucio Cardozo-Filho


2016 ◽  
Vol 37 ◽  
pp. 145-152 ◽  
Author(s):  
Veronica Belandria ◽  
Paola Maressa Aparecida de Oliveira ◽  
Agnes Chartier ◽  
José A. Rabi ◽  
Alessandra Lopes de Oliveira ◽  
...  


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