Einstein International Journal Organization(EIJO)

Abstract  

A very simple, highly selective and non-extractive spectrophotometric method for the trace amounts of copper(II) has been developed. 2,4-Dihydroxyacetophenone acetoylhydrazone(DAAH) has been proposed as a new analytical reagent for the direct non-extractive spectrophotometric determination of copper(II). The reagent reacts with copper(II) in acidic medium(pH 4.0) to form a pale yellow coloured 1: 1 (M : L) complex. The reaction is instantaneous and the complex shows maximum absorbance at 370 nm. The molar absorptivity and Sandell’s sensitivity are found to be 1.02 x 10⁴ L mol^-1 cm^-1 and 0.623 μg cm^-2respectively. The system obeys Beer’s law in the range, 0.2- 2.0 μg/ml of copper(II). The method is highly selective for copper and successfully used for determination of copper in alloys.

[1]. Katyal M and Dutt Y , Talanta 1975; 22; 151.

[2]. Singh R B, Talanta, 1982; 29; 77.

[3]. Lakshminaryayan S. Young KS, .Sung OB and Varada Reddy A, E -Journal of Chem., 2012; 9;1288.

[4]. Sayaji Rao M, Prasad NBL and Hussain Reddy K, Indian J. Chem., 2006; 45A; 1659.

[5]. Nagarjuna Reddy D and Hussain Reddy K, J. Indian Chem. Soc., 2011; 88; 595.

[6]. Renuka M and Hussain Reddy K, J. Indian Chem. Soc., 2014; 91; 951.

[7]. Vogel AI. A Text Book of Quantitative Inorganic Analysis, 3rd edn., ELBS and Longman.1975;325.

[8]. Philips J P and Merritt L L. Journal of American Chemical Society. 1978 ; 70; 410.

[9]. Hisham E Abdellatef, Magda M Ayad and Elham A Taha. J. Pharmaceutical & BiomedicalAnalysis.1999; 18;

[10]. Omer dalman, Mehmet Tufekci, Sinan nohut, Saadeffin Guinar, Sardar Karabosek. J.Pharmaceutical&Biomedical Analysis. 2002; 27;issue 1-2; 183-189.

[11]. Profullachandra Tekale, Smruthi Tekele, Sudheer lingayat and Prabhakar PN . Science ResearchReporter.2011; 1(2); 83-87.

[12]. Ghazy SE, El-Shazy RM, El-Shahawi MS, Al-Hazmi GAA and El-Asmi AA. J.of Iranian chemical Society.2006; 3(2); 140-150.

[13] Lutfullah, Saurabh Sarma, Nafisur Rehman, Syed Najmul, Hejaz Azmi, Bashir Iqbal, Maisa Ismail, Bilal Bait Amburk and Zuweina MAsoud Hilal Al Barwani. J. of the Chinese chemical society, 2010;57; 622-631.

[14]. Asmitha S Hankare and Barhate VD. International journal of current pharmaceuticalResearch. 2014; 6; issue