Determination of Zinc in Aerosol Samples by Discrete Nebulization Flame Atomic Absorption Spectrometry

Deniz Yurtsever SARICA

Makale detayları

Determination of Zinc in Aerosol Samples by Discrete Nebulization Flame Atomic Absorption Spectrometry

Yazarlar:

Deniz Yurtsever SARICA

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2002 Vol.26 Issue 2, pp.263-270

Belge Tipi:

Makale

Yayın Tarihi:

1/2002

Belge Dili:

Türkçe

Document ID (Org No.):

2000729968

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

A well-known analytical method, discrete nebulization'', which is  suitable for samples having a limited amount like body fluids, high  solid content or salt solutions, and less volatile metals, has been  further developed for zinc determination in aerosol samples.  The effects of injection volume and nebulizer aspiration rate on  absorbance and precision were studied.  A calibration graph was  obtained linearly up to 1.75 mg/L Zn with a 0.9988 correlation  coefficient and 3.09% RSD using 50 m L injection volume, values  comparable to conventional continuous nebulization.  The detection  limit (3S) achieved by the method was calculated to be 1.09 ng or  0.020 mg/L for 50 m L injection volume.  A hydrophobic PTFE micro  sampling cup was used.  Aerosol samples were collected between January 1996 and December 1998 in   Mersin, Turkey, using polycarbonate filters. Collected samples were digested   in the presence of HNO3 and HF. Digested samples were analyzed for zinc   using discrete nebulization flame atomic absorption spectrometry (FAAS).  The validity of the proposed method was established by evaluating the  accuracy of analyses of BCSS-1 (Marine Sediment Reference Materials  for Trace Metals and Other Constituents) CANADA. For the given true  value of 119.0 ±  12 mg/Kg zinc, a value of 118.98 ±  0.26  mg/Kg zinc was found with a precision of 0.22% RSD. As a further  check on accuracy, recoveries from aerosol samples were examined and  found to be 94-102% , again testifying to the reliability of the  proposed method.

 

A well-known analytical method, discrete nebulization'', which is  suitable for samples having a limited amount like body fluids, high  solid content or salt solutions, and less volatile metals, has been  further developed for zinc determination in aerosol samples.  The effects of injection volume and nebulizer aspiration rate on  absorbance and precision were studied.  A calibration graph was  obtained linearly up to 1.75 mg/L Zn with a 0.9988 correlation  coefficient and 3.09% RSD using 50 m L injection volume, values  comparable to conventional continuous nebulization.  The detection  limit (3S) achieved by the method was calculated to be 1.09 ng or  0.020 mg/L for 50 m L injection volume.  A hydrophobic PTFE micro  sampling cup was used.  Aerosol samples were collected between January 1996 and December 1998 in   Mersin, Turkey, using polycarbonate filters. Collected samples were digested   in the presence of HNO3 and HF. Digested samples were analyzed for zinc   using discrete nebulization flame atomic absorption spectrometry (FAAS).  The validity of the proposed method was established by evaluating the  accuracy of analyses of BCSS-1 (Marine Sediment Reference Materials  for Trace Metals and Other Constituents) CANADA. For the given true  value of 119.0 ±  12 mg/Kg zinc, a value of 118.98 ±  0.26  mg/Kg zinc was found with a precision of 0.22% RSD. As a further  check on accuracy, recoveries from aerosol samples were examined and  found to be 94-102% , again testifying to the reliability of the  proposed method.

Makale detayları

Determination of Zinc in Aerosol Samples by Discrete Nebulization Flame Atomic Absorption Spectrometry

Yazarlar: Deniz Yurtsever SARICA

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2002 Vol.26 Issue 2, pp.263-270

Belge Tipi: Makale

Yayın Tarihi: 1/2002

Belge Dili: Türkçe

Document ID (Org No.): 2000729968

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Deniz Yurtsever SARICA

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2002 Vol.26 Issue 2, pp.263-270

Belge Tipi:

Makale

Yayın Tarihi:

1/2002

Belge Dili:

Türkçe

Document ID (Org No.):

2000729968

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527