NDLI: An environmentally friendly analytical procedure for nickel determination by atomic and molecular spectrometry after cloud point extraction in different samples

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An environmentally friendly analytical procedure for nickel determination by atomic and molecular spectrometry after cloud point extraction in different samples

Content Provider	Semantic Scholar
Author	Garcia, Samara Galbeiro, Rafaela Silva, Sidnei Gonçalves Da Nomura, Cassiana Seimi Rocha, Fábio R. P. Gaubeur, Ivanise
Copyright Year	2012
Abstract	Cloud point extraction (CPE) was employed for separation and preconcentration prior to the determination of nickel by graphite furnace atomic absorption spectrometry (GFAAS), flame atomic absorption spectrometry (FAAS) or UV-Vis spectrophotometry. Di-2-pyridyl ketone salicyloylhydrazone (DPKSH) was used for the first time as a complexing agent in CPE. The nickel complex was extracted from the aqueous phase using the Triton X-114 surfactant. Under optimized conditions, limits of detection obtained with GFAAS, FAAS and UV-Vis spectrophotometry were 0.14, 0.76 and 1.5 μg L−1, respectively. The extraction was quantitative and the enrichment factor was estimated to be 27. The method was applied to natural waters, hemodialysis concentrates, urine and honey samples. Accuracy was evaluated by analysis of the NIST 1643e Water standard reference material.
Starting Page	2429
Ending Page	2434
Page Count	6
File Format	PDF HTM / HTML
DOI	10.1039/C2AY25236H
Volume Number	4
Alternate Webpage(s)	https://core.ac.uk/download/pdf/37509979.pdf
Alternate Webpage(s)	https://doi.org/10.1039/C2AY25236H
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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