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Quantitative Determination of Tetraacetylethylenediamine in Laundry Powder by FTIR Spectrometry Using Partial Least Squares Algorithm

Quantitative Bestimmung von Tetraacetylethylendiamin in Waschpulver durch FTIR-Spektrometrie mittels Partial Least Squares-Algorithmus
M. Khanmohammadi , M. Shanehsaz , A. Bagheri Garmarudi and K. Kargosha

Abstract

Attenuated total reflectance Fourier transform infrared spectrometry was applied for determination of tetraacetylethylenediamine (TAED) in commercial laundry powder samples. Investigating different spectral regions, 1724–1670 cm−1 was selected as the best region. Spectroscopic data were compared with gas chromatography results, demonstrating reliability of the proposed method, higher accuracy and precision. Standard error of estimation (SEE), standard error of prediction (SEP), correlation coefficient (R2) and root mean square error of prediction (RMSEP) was 0.022, 0.031, 0.998 and 0.138 in the selected spectral region, respectively.

Kurzfassung

Die abgeschwächte Totalreflexion wurde in Verbindung mit der Fourier-Transform-Infrarotspektrometrie zur Bestimmung von Tetraacetylethylendiamin (TAED) in kommerziellen Waschmittelproben angewendet. Von den untersuchten Spektralbereichen wurde der Bereich 1724–1670 cm−1 als günstigster ausgewählt. Die spektroskopischen Messwerte wurden mit denen der Gaschromatographie verglichen, um die Reliabilität der vorgeschlagenen Methode mit höherer Genauigkeit und Präzision zu demonstrieren. Der Standardschätzfehler (SEE), der Standardvorhersagefehler (SEP), der Korrelationskoeffizient (R2) und die Wurzel der mittleren quadratischen Abweichung der Vorhersage (RMSEP) betrug 0,022, 0,031, 0,998 und 0,138 im jeweiligen ausgewählten Spektralbereich.


Mohammadreza Khanmohammadi, Chemistry Department, Faculty of Science, IKIU, P. O. Box: 288, Qazvin, Iran, Tel.-Fax: +982813780040. E-Mail:

Dr. Mohammadreza Khanmohammadi (PhD) is an associate professor of analytical chemistry at Chemistry Department, IKIU, Qazvin, Iran. In parallel he holds the head position of the R & D department at TOLYPERS detergent manufacturing Co., Qazvin, Iran. Surfactant-Detergent analysis and synthesis of novel Surfactant-Detergent raw materials are his main research interests in this filed; in addition with high technology spectroscopy-chemometrics based researches. He is also a member of managing council of ALBORZ-BALK Co., producer of a wide range of chemicals. He has been selected as the best researcher during the last decade for several times. He is also in collaboration with department of analytical chemistry, University of Valencia, Spain and University of Delhi, India. He is a member of American Chemical Society.

Maryam Shanehsaz (MSc), has been graduated in analytical chemistry in Dr Khanmohammadi's research team, IKIU, Qazvin, Iran. Her thesis was in field of (Application of FTIR spectrometry in detergent industry). She is now a researcher at Iran Petroleum Research Institute.

Amir Bagheri Garmarudi has been graduated in analytical chemistry during 2007 and is going to start the PhD program in Dr Khanmohammadi's research team. He is also researcher and technical administrator in Department of Chemistry & Polymer Laboratories, Engineering Research Institute (ERI), Tehran, Iran.

Dr. Kazem Kargosha (PhD), is an academic member of Chemistry & Chemical Engineering Institute of Iran. He is associate professor of analytical chemistry. He has published several scientific papers in ISI indexed journals in addition with analytical chemistry books. He is a member of managing council of Iranian Chemical Society. He has been the supervisor or advisor of several MSc and PhD thesis.


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Received: 2008-01-02
Published Online: 2013-04-02
Published in Print: 2008-05-01

© 2008, Carl Hanser Publisher, Munich

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