Determination of Nickel in Alloys and Plant Leaves with Salicylaldehyde 3-Oxobutanoylhydrazone by Spectrophotometry

A simple and highly sensitive reagent of salicylaldehyde 3-oxobutanoylhydrazone (salicylaldehyde acetoacetic acid hydrazone, SAAH) was synthesized and studied for the spectrophotometric determination of nickel in detail. In the pH range 6, which greatly increased the selectivity, nickel reacted with...

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Bibliographic Details
Published in:Analytical Sciences 2004, Vol.20(6), pp.951-953
Main Authors: KUMAR, Suresh K., RAO, Prabhakara S., KRISHNAIAH, L., JAYARAJ, B., CHIRANJEEVI, P.
Format: Article
Language:English
Subjects:
Aldehydes - chemistry
Alloys
Alloys - chemistry
Coefficient of variation
Hydrazones - chemistry
Leaves
Nickel
Nickel - analysis
Plant Leaves - chemistry
Sensitivity and Specificity
Spectrophotometry
Spectrophotometry - methods
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Summary:A simple and highly sensitive reagent of salicylaldehyde 3-oxobutanoylhydrazone (salicylaldehyde acetoacetic acid hydrazone, SAAH) was synthesized and studied for the spectrophotometric determination of nickel in detail. In the pH range 6, which greatly increased the selectivity, nickel reacted with SAAH to form a 1:1 yellow complex, having a sensitive absorption peak at 405 nm. Under the optimal conditions, Beer’s law was obeyed over the range from 0.0117 to 0.1174 µg cm-3. The apparent molar absorptivity was 3.025 × 105 dm3 mol-1 cm-1. The detection limit and the variation coefficient were found to be 1.752 ng cm-3 and 1.0%, respectively. The method has been applied to the quantitative determination of nickel in different alloys and leaves.
ISSN:0910-6340
1348-2246
DOI:10.2116/analsci.20.951