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DEVELOPMENT OF SPECTROPHOTOMETRIC DETERMINATION METHOD OF GOLD BY OXIDATIVE COUPLING

Year 2012, Volume: 13 Issue: 1, 47 - 60, 01.06.2012

Abstract

 In this study, m- and p-phenylenediamine’s reactions which were in the presence of
Cu(II) and Au(III) ions were investigated using spectrophotometric and potentiometric
method. The results of the reactions between Cu(II) and Au(III) and m- and pphenylenediamine
mixtures it was found out that, there is an oxidation by means of
complexation. And as a result of oxidation, a diazo compound occured from amines and
Cu(II) were reduced to elementel form, Au(III) was reduced to Au(I). Also the formation
conditions of the reactions of these metals with amines were investigated, the pH range that
the reactions takes place, time needed for the formation of the reactions and the mol ratios
needed for the complete reaction of the metals with amines. Mole ratios are calculated as:
Cu(II) / (m+p)phenylenediamine = 1 / 2; Au(III) / (m+p)phenylenediamine = 1/2
As a result of these spectrophotometric and potentiometric experiments, the basis of a
new and easy determination method for Au(III) brought up. 

ALTIN İÇİN Cu(II) KULLANILARAK OKSİDATİF KENETLENMEYE DAYAYAN SPETROFOTOMETRİK BİR TAYİN YÖNTEMİNİN GELİŞTİRİLMESİ

Year 2012, Volume: 13 Issue: 1, 47 - 60, 01.06.2012

Abstract

Bu çalışmada m- ve p-fenilendiaminlerin Cu(II) ve Au(III) ile verdiği
reaksiyonlar spektrofotometrik ve potansiyometrik olarak incelenerek bir tayin yönteminin
geliştirilmesi amaçlanmıştır. m- ve p-fenilendiamin karışımları ile Cu(II) ve Au(III)’ün
verdiği reaksiyonlar sonucunda kompleksleşme üzerinden giden bir oksidasyon olduğu, bu
oksidasyon sonucunda aminler arasında bir diazo bileşiği oluşurken Cu(II)’nin elementel hale
Au(III) ün ise Au(I) basamağına indirgendiği görülmüştür. Ayrıca Cu(II) ile aminlerin
verdikleri reaksiyonların oluşum koşulları incelenerek, reaksiyonun meydana geldiği pH
aralığı, reaksiyonların oluşum süreleri ve bu metallerle aminlerin tam olarak reaksiyona
girebilmesi için gerekli olan mol oranları bulunmuştur. Deneylerden elde edilen sonuçlardan
Cu(II) ve Au(III)’ün aminlerle oluşturdukları oksidatif bağlanma ürünlerinin mol oranları;
Cu(II)/(m+p)fenilendiamin = 1 / 2 ; Au(III) / (m+p)fenilendiamin= 1 / 2 olarak bulunmuştur.
Spektrofotometrik ve potansiyometrik olarak yapılan bu deneyler sonucunda yeni basit bir
spektrofotometrik tayin yönteminin temelleri ortaya konmuştur.

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Details

Journal Section Research Article/Araştırma Makalesi
Authors

Gülbin Erdoğan This is me

Emre Dölen This is me

Hilmi İbar This is me

Publication Date June 1, 2012
Submission Date August 21, 2014
Published in Issue Year 2012 Volume: 13 Issue: 1

Cite

APA Erdoğan, G., Dölen, E., & İbar, H. (2012). DEVELOPMENT OF SPECTROPHOTOMETRIC DETERMINATION METHOD OF GOLD BY OXIDATIVE COUPLING. Trakya University Journal of Natural Sciences, 13(1), 47-60.
AMA Erdoğan G, Dölen E, İbar H. DEVELOPMENT OF SPECTROPHOTOMETRIC DETERMINATION METHOD OF GOLD BY OXIDATIVE COUPLING. Trakya Univ J Nat Sci. June 2012;13(1):47-60.
Chicago Erdoğan, Gülbin, Emre Dölen, and Hilmi İbar. “DEVELOPMENT OF SPECTROPHOTOMETRIC DETERMINATION METHOD OF GOLD BY OXIDATIVE COUPLING”. Trakya University Journal of Natural Sciences 13, no. 1 (June 2012): 47-60.
EndNote Erdoğan G, Dölen E, İbar H (June 1, 2012) DEVELOPMENT OF SPECTROPHOTOMETRIC DETERMINATION METHOD OF GOLD BY OXIDATIVE COUPLING. Trakya University Journal of Natural Sciences 13 1 47–60.
IEEE G. Erdoğan, E. Dölen, and H. İbar, “DEVELOPMENT OF SPECTROPHOTOMETRIC DETERMINATION METHOD OF GOLD BY OXIDATIVE COUPLING”, Trakya Univ J Nat Sci, vol. 13, no. 1, pp. 47–60, 2012.
ISNAD Erdoğan, Gülbin et al. “DEVELOPMENT OF SPECTROPHOTOMETRIC DETERMINATION METHOD OF GOLD BY OXIDATIVE COUPLING”. Trakya University Journal of Natural Sciences 13/1 (June 2012), 47-60.
JAMA Erdoğan G, Dölen E, İbar H. DEVELOPMENT OF SPECTROPHOTOMETRIC DETERMINATION METHOD OF GOLD BY OXIDATIVE COUPLING. Trakya Univ J Nat Sci. 2012;13:47–60.
MLA Erdoğan, Gülbin et al. “DEVELOPMENT OF SPECTROPHOTOMETRIC DETERMINATION METHOD OF GOLD BY OXIDATIVE COUPLING”. Trakya University Journal of Natural Sciences, vol. 13, no. 1, 2012, pp. 47-60.
Vancouver Erdoğan G, Dölen E, İbar H. DEVELOPMENT OF SPECTROPHOTOMETRIC DETERMINATION METHOD OF GOLD BY OXIDATIVE COUPLING. Trakya Univ J Nat Sci. 2012;13(1):47-60.

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