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Study of spectrophotometric characteristics of the charge transfer complexation of epsilon aminocaproic acid with bromanil

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Title Statement Study of spectrophotometric characteristics of the charge transfer complexation of epsilon aminocaproic acid with bromanil
 
Added Entry - Uncontrolled Name Tian, Fang ; Department of Chemistry, Taiyuan Normal University, Jinzhong, Shanxi 030619, China
Li, Sheng Yun ; Department of Chemistry, Taiyuan Normal University, Jinzhong, Shanxi 030619, China
This work was financial supported by the National Natural Science Foundation of China (No. 20776004) and Shanxi Natural Science Funding (No. 2014011014-8).
 
Uncontrolled Index Term term1. analytical chemistry; term2. spectroscopy; term 3. pharmaceutical analysis
Bromanil, Charge transfer complex, Epsilon aminocaproic acid, Spectrophotometry
 
Summary, etc. <p class="p" style="text-align: justify;"><a name="OLE_LINK17"><span lang="EN-GB">A spectrophotometric method has been studied for the determination of epsilon aminocaproic acid (EACA) through </span></a><a name="OLE_LINK13"><span lang="EN-GB">charge transfer (CT) </span></a><a name="OLE_LINK75"><span lang="EN-GB">complexation</span></a><span lang="EN-GB"> with <a name="OLE_LINK21">bromanil</a> (TBBQ)</span><span lang="EN-GB">. <a name="OLE_LINK19">The CT</a> reaction has been carried out at 70</span><span lang="EN-GB"> °C</span><span lang="EN-GB"> of the water bath for 30 min in the borax buffer solution. The <a name="OLE_LINK55">spectrum</a> obtained for</span><span lang="EN-GB"> </span><span lang="EN-GB">EACA/TBBQ system <a name="OLE_LINK12">show</a>s the maximum absorption band at wavelength of 352 nm. The CT complex is also confirmed by both FTIR and <sup>1</sup>H NMR measurements. The stoichiometry of the CT complex is found to be 1:1 ratio by Job and straight line methods between the donor and the acceptor. At the optimum reaction conditions, Beer’s law is obeyed in a concentration limit of 2</span><span lang="EN-US">～</span><span lang="EN-GB">8</span><span lang="EN-GB"> µg mL</span><sup><span lang="EN-GB">−</span><span lang="EN-GB">1</span></sup><span lang="EN-GB">. The relative standard deviation is less than 1.5%. The apparent molar absorptivity is determined to be 1.16×10<sup>4 </sup>L mol</span><sup><span lang="EN-GB">−</span><span lang="EN-GB">1 </span></sup><span lang="EN-GB">cm</span><sup><span lang="EN-GB">−</span><span lang="EN-GB">1</span></sup><span lang="EN-GB"> at 352 nm. The thermodynamic properties and reaction mechanism of the CT <a name="OLE_LINK91">complexation</a> have been discussed. The developed method could be applied successfully for the determination of the studied compound in its pharmaceutical dosage form with a good precision and accuracy compared to official method as revealed by <em>t</em>- and <em>F</em>-tests.</span></p>
 
Publication, Distribution, Etc. Indian Journal of Chemistry -Section A (IJCA)
2020-11-05 10:09:35
 
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http://op.niscair.res.in/index.php/IJCA/article/view/31651
 
Data Source Entry Indian Journal of Chemistry -Section A (IJCA); ##issue.vol## 59, ##issue.no## 11 (2020): INDIAN JOURNAL OF CHEMISTRY - SECTION A
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJCA/article/download/31651/465497359
http://op.niscair.res.in/index.php/IJCA/article/download/31651/465497360
http://op.niscair.res.in/index.php/IJCA/article/download/31651/465497361
http://op.niscair.res.in/index.php/IJCA/article/download/31651/465497362
http://op.niscair.res.in/index.php/IJCA/article/download/31651/465497363
http://op.niscair.res.in/index.php/IJCA/article/download/31651/465497364
http://op.niscair.res.in/index.php/IJCA/article/download/31651/465497365
http://op.niscair.res.in/index.php/IJCA/article/download/31651/465497366
 
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