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Spectrophotometric determination of platinum(IV) in alloys, complexes, environmental, and pharmaceutical samples using 4-[N,N-(diethyl)amino] benzaldehyde thiosemicarbazone.
MedLine Citation:
PMID:  20145997     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
4-[N,N-(Diethyl)amino] benzaldehyde thiosemicarbazone (DEABT) is proposed as an analytical reagent for the spectrophotometric determination of platinum(IV). The DEABT forms 1:2 yellow complex with Pt(IV), which is sparingly soluble in water and completely soluble in water-ethanol-DMF medium. The Pt(IV)-DEABT complex shows maximum absorbance at 405 nm. Beer's law is valid up to 7.80 μg cm(-3), and optimum concentration range for the determination of platinum(IV) is 0.48-7.02 μg cm(-3). The molar absorptivity and Sandell's sensitivity of the method are found to be 1.755 × 10(4) dm(3) mol(-1) cm(-1) and 0.0012 μg cm(-2), respectively. The relative error and coefficient of variation (n=6) for the method does not exceed ± 0.43% and 0.35%, respectively. Since the method tolerates a number of metal ions commonly associated with platinum, it can be employed for the determination of platinum in environmental samples, pharmaceutical samples, alloys, catalysts, and complexes. The method is rapid as the Pt(IV)-DEABT complex is soluble in water-ethanol-DMF medium and not requiring any time consuming extraction method for the complex.
Authors:
P Parameshwara Naik; J Karthikeyan; A Nityananda Shetty
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Publication Detail:
Type:  Journal Article     Date:  2010-02-10
Journal Detail:
Title:  Environmental monitoring and assessment     Volume:  171     ISSN:  1573-2959     ISO Abbreviation:  Environ Monit Assess     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-10-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8508350     Medline TA:  Environ Monit Assess     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  639-49     Citation Subset:  IM    
Affiliation:
Department of Chemistry, Sahyadri Science College, Shimoga, 577 203, India.
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