A spectrophotometric method for the determination of nickel

Brake, L.D.; McNabb, Wallace M.; Hazel, J. Fred

doi:10.1016/s0003-2670(00)88116-7

Cited by 12 publications

(5 citation statements)

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“…3 ) [26]. The complex is stable at pH 7.5 and 25 o C. The best reaction parameters for obtaining higher absorbance values were determined using a 2 4 factorial design.…”

Section: Resultsmentioning

confidence: 99%

“…The following contents were found (mass percentage, %): 69. 4 The results were compared to those obtained with AAS and ICP-AES, two very widely used methodologies, and the results showed that the spectrophometric method was able to quantify Ni(II) in alloys, including the Co-Cr alloy, which presents high levels of the cobalt. The results indicated that the other elements that comprise the alloys did not interfere to a great extent in the determination of Ni(II).…”

Section: Resultsmentioning

confidence: 99%

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Determination of Ni(ii) in Alloys Using a New Reagent Derived From L-Dopa

et al. 2017

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A simple and sensitive UV-Vis spectrophotometric method was developed using a new chromogenic reagent, L-dopasemiquinone, for the quantification of Ni(II) in metallic alloys: Inox, Co-Cr, and Ni-Ti. The complex [Ni(II)(L1-)3]1- presents an intense band at 591 nm, ε = 2.4 x 103 L mol-1 cm-1. Beer’s law is obeyed from 4.02 x 10-5 to 2.01 x 10-4 mol L-1 with limits of detection and quantification of 4.15 x 10-5 mol L-1 and 5.02 x 10-5 mol L-1, respectively. The method was compared with atomic absorption spectrophotometry and inductively coupled plasma atomic emission spectroscopy obtaining good results. Cobalt and Titanium cause low interference in the method.

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“…3 ) [26]. The complex is stable at pH 7.5 and 25 o C. The best reaction parameters for obtaining higher absorbance values were determined using a 2 4 factorial design.…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Determination of Ni(ii) in Alloys Using a New Reagent Derived From L-Dopa

et al. 2017

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“…The results of the experiments using the 2 4 factorial design showed that the temperature does not have a significant influence on the From the regression Equation 1, the optimal conditions for the reaction between Ni(II) and chromogenic reagent were: wavelength 590 nm, temperature 25 °C, reaction time 45 min and pH 7.5.…”

Section: The Optimization Parameters Of the Complexation Reactionmentioning

confidence: 99%

“…To optimize the conditions of the complexation reaction of Ni(II) and the dopa-semiquinone, a 2 4 factorial design was carried out with a central point. The factors were; pH (6,7,8) …”

Section: Complexation Reaction Of Ni(ii) and Chromogenic Reagentmentioning

confidence: 99%

“…3 The method using Titriplex ® III gives a coloured complex utilized for determination of nickel by spectrophotometric observation of the band at 1000 nm. 4 The 2,2'-Furil dioxime forms with nickel a yellow, water insoluble complex which is extractable with chloroform and it can be utilized for photometric determination. 5 The method utilizing dithiooxamide is very sensitive (limit of detection about 0.01 μg nickel) but copper and cobalt interfere seriously in the method.…”

Section: Introductionmentioning

confidence: 99%

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Determination of Ni(II) in metal alloys by spectrophotometry UV-Vis using dopasemiquinone

Barreto

Scarmínio

et al. 2010

Quím. Nova

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Recebido em 12/2/09; aceito em 10/7/09; publicado na web em 13/11/09 A spectrophotometric method was proposed for Ni(II) determination in alloys using a dopa-semiquinone (L. The optimal conditions for the determination were: wavelength 590 nm, temperature 25 °C, reaction time 45 min and pH 7.5. The Beer's law was obeyed for nickel from 3.33 x 10 -5 to 1.78 x 10 -4 mol L -1. The method was applied to complex samples, such as inox, nickel-titanium and cobalt-chromium alloys. A study of the potential interferents revealed that Mn was the major interferent. The limit of detection and quantification were 2.88 x 10 -5 mol L -1 and 3.06 x 10 -5 mol L -1 , respectively.

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Analyse von Gemischen aus metallischem Nickel und Oxidhydraten des zwei‐ und höherwertigen Nickels

Gann¹

1971

Angewandte Chemie

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A spectrophotometric method for the determination of nickel

Cited by 12 publications

References 1 publication

Determination of Ni(ii) in Alloys Using a New Reagent Derived From L-Dopa

Determination of Ni(ii) in Alloys Using a New Reagent Derived From L-Dopa

Determination of Ni(II) in metal alloys by spectrophotometry UV-Vis using dopasemiquinone

Analyse von Gemischen aus metallischem Nickel und Oxidhydraten des zwei‐ und höherwertigen Nickels

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