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https://repositorio.ufba.br/handle/ri/7625
metadata.dc.type: | Artigo de Periódico |
Title: | Effects of ultrasonic irradiation on the spectrophotometric determination of nickel with dimethylglyoxime |
Other Titles: | Analytica Chimica Acta |
Authors: | Sousa, Clarivaldo Santos de Korn, Mauro |
metadata.dc.creator: | Sousa, Clarivaldo Santos de Korn, Mauro |
Abstract: | Influence of ultrasonic waves in the spectrophotometric determination of nickel with dimethylglyoxime (DMG) was investigated and interferences from foreign species such as Co2+, Fe2+ and Cu2+ were studied. A 1.5-fold sensitivity enhancement in relation to the conventional method involving nickel oxidation with persulfate was attained. In addition, operator handling and reagent consumption were lessened. The analytical curve was linear from 0.15 to 1.5 mg l−1 Ni and detection limit was estimated as 13 μg l−1 Ni. The procedure was applied to the analysis of alloys, containing Co, Fe and Cu in different proportion, and accuracy was assessed by using certified reference materials. |
Keywords: | Ultrasonic waves Reagent generation Nickel determination Alloys Spectrophotometry |
URI: | http://www.repositorio.ufba.br/ri/handle/ri/7625 |
Issue Date: | 2001 |
Appears in Collections: | Artigo Publicado em Periódico (Química) |
Files in This Item:
File | Description | Size | Format | |
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1-s2.0-S0003267001012077-main.pdf Restricted Access | 84,24 kB | Adobe PDF | View/Open Request a copy |
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