Extraction-Spectrophotometric Determination of Trace Amounts of Barium and Strontium by 18-Crown-6 and Rose Bengal Using Partial Least Squares

Jahanbakhsh GHASEMI

Makale detayları

Extraction-Spectrophotometric Determination of Trace Amounts of Barium and Strontium by 18-Crown-6 and Rose Bengal Using Partial Least Squares

Yazarlar:

Jahanbakhsh GHASEMI

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2005 Vol.29 Issue 6, pp.669-678

Belge Tipi:

Makale

Yayın Tarihi:

5/2005

Belge Dili:

Türkçe

Document ID (Org No.):

2000729011

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

Partial least squares modeling is a powerful multivariate  statistical tool applied to extraction-spectrophotometric simultaneous  determination of mixtures of barium and strontium.  The method is  based on the formation of the ternary complexes with 18C6 and rose  bengal with barium and strontium.  The 18C6-Ba-RB and 18C6-Sr-RB  ternary complexes are quantitatively extracted into dichloromethane  and the resolution of the mixtures is accomplished by partial least  squares (PLS).  In this study, the calibration model is based on  absorption spectra in the 500-600 nm range for 25 different mixtures  of barium and strontium.  Calibration matrice's ranges were 0.05-5.50  and 0.03-4.50 m g mL-1 and detection limits were 0.036 and 0.017  m g mL-1 for barium and strontium, respectively.  A series of  synthetic solutions containing different concentrations of barium and  strontium was used to check the prediction ability of the PLS model.   The RMSEP for barium and strontium was 0.1323 and 0.0327,  respectively.  The method was successfully applied to the analysis of  spiked water (natural, tap and waste waters) samples.

 

Partial least squares modeling is a powerful multivariate  statistical tool applied to extraction-spectrophotometric simultaneous  determination of mixtures of barium and strontium.  The method is  based on the formation of the ternary complexes with 18C6 and rose  bengal with barium and strontium.  The 18C6-Ba-RB and 18C6-Sr-RB  ternary complexes are quantitatively extracted into dichloromethane  and the resolution of the mixtures is accomplished by partial least  squares (PLS).  In this study, the calibration model is based on  absorption spectra in the 500-600 nm range for 25 different mixtures  of barium and strontium.  Calibration matrice's ranges were 0.05-5.50  and 0.03-4.50 m g mL-1 and detection limits were 0.036 and 0.017  m g mL-1 for barium and strontium, respectively.  A series of  synthetic solutions containing different concentrations of barium and  strontium was used to check the prediction ability of the PLS model.   The RMSEP for barium and strontium was 0.1323 and 0.0327,  respectively.  The method was successfully applied to the analysis of  spiked water (natural, tap and waste waters) samples.

Makale detayları

Extraction-Spectrophotometric Determination of Trace Amounts of Barium and Strontium by 18-Crown-6 and Rose Bengal Using Partial Least Squares

Yazarlar: Jahanbakhsh GHASEMI

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2005 Vol.29 Issue 6, pp.669-678

Belge Tipi: Makale

Yayın Tarihi: 5/2005

Belge Dili: Türkçe

Document ID (Org No.): 2000729011

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Jahanbakhsh GHASEMI

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2005 Vol.29 Issue 6, pp.669-678

Belge Tipi:

Makale

Yayın Tarihi:

5/2005

Belge Dili:

Türkçe

Document ID (Org No.):

2000729011

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527