Interference elimination studies during the determination of trace elements in cow liver using differential pulse polarography

Ümmihan T. YILMAZ; Güler SOMER

Makale detayları

Interference elimination studies during the determination of trace elements in cow liver using differential pulse polarography

Yazarlar:

Ümmihan T. YILMAZ | Güler SOMER

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2010 Vol.34 Issue 1, pp.135-146

Belge Tipi:

Makale

Yayın Tarihi:

12/2009

Belge Dili:

Türkçe

Document ID (Org No.):

2000728161

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

The liver is known to accumulate many trace elements; thus  it is very important to determine their level in a sensitive way.  The  objective of this study was to develop a simple method for the  simultaneous determination of trace elements in cow liver in which the  elimination of interference can be accomplished.  It was observed that  Cd, Pb, Zn, and Cu ions could not be determined correctly in the  presence of Se(IV), because of interference of Se.  It was shown that  this interference could be eliminated by using pH 8.5 NaAc  electrolyte.  In this medium first Cd and Zn were determined; then,  after addition of EDTA, Pb and Cu ions were determined by standard  addition.  Since Ti(IV), Mo(VI), Cr(III), and Fe(III) had no  interference with Se(IV) they could be determined at appropriate  electrolyte conditions.  Selenite, on the other hand, was determined  using its hydrogen catalytic peak.  The results obtained under 2  conditions, where interference was eliminated and not eliminated, were  compared.  It was found that the quantities for Cu, Cd, Pb, and Zn  were larger in medium where interference does not take place.

 

The liver is known to accumulate many trace elements; thus  it is very important to determine their level in a sensitive way.  The  objective of this study was to develop a simple method for the  simultaneous determination of trace elements in cow liver in which the  elimination of interference can be accomplished.  It was observed that  Cd, Pb, Zn, and Cu ions could not be determined correctly in the  presence of Se(IV), because of interference of Se.  It was shown that  this interference could be eliminated by using pH 8.5 NaAc  electrolyte.  In this medium first Cd and Zn were determined; then,  after addition of EDTA, Pb and Cu ions were determined by standard  addition.  Since Ti(IV), Mo(VI), Cr(III), and Fe(III) had no  interference with Se(IV) they could be determined at appropriate  electrolyte conditions.  Selenite, on the other hand, was determined  using its hydrogen catalytic peak.  The results obtained under 2  conditions, where interference was eliminated and not eliminated, were  compared.  It was found that the quantities for Cu, Cd, Pb, and Zn  were larger in medium where interference does not take place.

Makale detayları

Interference elimination studies during the determination of trace elements in cow liver using differential pulse polarography

Yazarlar: Ümmihan T. YILMAZ | Güler SOMER

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2010 Vol.34 Issue 1, pp.135-146

Belge Tipi: Makale

Yayın Tarihi: 12/2009

Belge Dili: Türkçe

Document ID (Org No.): 2000728161

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Ümmihan T. YILMAZ | Güler SOMER

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2010 Vol.34 Issue 1, pp.135-146

Belge Tipi:

Makale

Yayın Tarihi:

12/2009

Belge Dili:

Türkçe

Document ID (Org No.):

2000728161

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527