Arsenic removal from water/wastewater using nanoparticle-assisted hollow fiber solid-phase microextraction combined with hydride generation–atomic fluorescence spectroscopy

2014 ◽  
Vol 11 (5) ◽  
pp. 1421-1428 ◽  
Author(s):  
Zarrin Es’haghi ◽  
Shakiba Taghizade ◽  
Alireza Mazloomi-Bajestani
2005 ◽  
Vol 150 (1) ◽  
pp. 9-14 ◽  
Author(s):  
María Milagros Gómez ◽  
Monika Kövecs ◽  
María Antonia Palacios ◽  
Isabel Pizarro ◽  
Carmen Cámara

2013 ◽  
Vol 2013 ◽  
pp. 1-15 ◽  
Author(s):  
Mirna Daye ◽  
Baghdad Ouddane ◽  
Jalal Halwani ◽  
Mariam Hamzeh

8-Hydroxyquinoline (8-HQ) was chosen as a powerful ligand for Hg solid phase extraction. Among several chelating resins based on 8-HQ, 5-phenylazo-8-hydroxyquinoline (5Ph8HQ) is used for mercury extraction in which the adsorption dynamics were fully studied. It has been shown that Hg(II) is totally absorbed by 5Ph8HQ within the first 30 minutes of contact time witht1/25 minutes, following Langmuir adsorption model. At pH 4, the affinity of mercury is unchallenged by other metals except, for Cu(II), which have shown higher Kd value. With these latter characteristics, 5Ph8HQ was examined for the preconcentration of trace levels of Hg(II). The developed method showed quantitative recoveries of Hg(II) with LOD = 0.21 pg mL−1and RSD = 3–6% using cold vapor atomic fluorescence spectroscopy (CV-AFS) with a preconcentration factor greater than 250.


1998 ◽  
Vol 13 (12) ◽  
pp. 1355-1360 ◽  
Author(s):  
Alison M. Featherstone ◽  
Edward C. V. Butler ◽  
Barry V. O'Grady ◽  
Pierre Michel

2019 ◽  
Vol 42 (14) ◽  
pp. 2398-2406 ◽  
Author(s):  
Xiangping Ji ◽  
Min Sun ◽  
Chunying Li ◽  
Sen Han ◽  
Xiuqin Wang ◽  
...  

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