PVC-Membrane Electrodes Based on 18-Crown-6 and Dibenzo-18-Crown-6 Ethers for Determination of Silver

Mohsen Mousa ZAREH; Magda A. AKL; Ahmd Khlil GOHNEIM And; Mohmed Hussin ABD EL-AZIZ

Makale detayları

PVC-Membrane Electrodes Based on 18-Crown-6 and Dibenzo-18-Crown-6 Ethers for Determination of Silver

Yazarlar:

Mohsen Mousa ZAREH | Magda A. AKL | Ahmd Khlil GOHNEIM And | Mohmed Hussin ABD EL-AZIZ

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2007 Vol.31 Issue 4, pp.449-456

Belge Tipi:

Makale

Yayın Tarihi:

3/2007

Belge Dili:

Türkçe

Document ID (Org No.):

2000728674

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

PVC-membrane electrodes for Ag+ based on either 18-crown-6  (I) or di-benzo-18-crown-6 ether (II) were applied for the first time.   The effect of solvent mediator on the electrode performance was  discussed.  Nernstian slope values were 59 and 58.9 mV/decade for both  I and II electrode types, respectively.  The linear concentration  range was 10-5-10-1M. The detection limit was 7.9 \times 10-6  M. The working pH ranges were 5-9 or 4-9, depending on the  concentration of Ag+ ion.  The electrodes showed good selectivity  towards most of the common alkali, alkaline earths, and transition  metal cations.  The electrodes were applied successfully for the  determination of silver in photographic wastewater and alloys that are  part of railway engines.  The recovery range was 96%-100%, and the  relative standard deviation was (0.95-2.7) for n = 4.  The obtained  results were compared to those of an atomic absorption  spectrophotometric method.

 

PVC-membrane electrodes for Ag+ based on either 18-crown-6  (I) or di-benzo-18-crown-6 ether (II) were applied for the first time.   The effect of solvent mediator on the electrode performance was  discussed.  Nernstian slope values were 59 and 58.9 mV/decade for both  I and II electrode types, respectively.  The linear concentration  range was 10-5-10-1M. The detection limit was 7.9 \times 10-6  M. The working pH ranges were 5-9 or 4-9, depending on the  concentration of Ag+ ion.  The electrodes showed good selectivity  towards most of the common alkali, alkaline earths, and transition  metal cations.  The electrodes were applied successfully for the  determination of silver in photographic wastewater and alloys that are  part of railway engines.  The recovery range was 96%-100%, and the  relative standard deviation was (0.95-2.7) for n = 4.  The obtained  results were compared to those of an atomic absorption  spectrophotometric method.

Makale detayları

PVC-Membrane Electrodes Based on 18-Crown-6 and Dibenzo-18-Crown-6 Ethers for Determination of Silver

Yazarlar: Mohsen Mousa ZAREH | Magda A. AKL | Ahmd Khlil GOHNEIM And | Mohmed Hussin ABD EL-AZIZ

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2007 Vol.31 Issue 4, pp.449-456

Belge Tipi: Makale

Yayın Tarihi: 3/2007

Belge Dili: Türkçe

Document ID (Org No.): 2000728674

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Mohsen Mousa ZAREH | Magda A. AKL | Ahmd Khlil GOHNEIM And | Mohmed Hussin ABD EL-AZIZ

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2007 Vol.31 Issue 4, pp.449-456

Belge Tipi:

Makale

Yayın Tarihi:

3/2007

Belge Dili:

Türkçe

Document ID (Org No.):

2000728674

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527