Simple and efficient method for the detection of diethylenetriaminepentaacetic acid
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Updated: Oct 17, 2026

Study of Short Peptide Adsorption on Solution Dispersed Inorganic Nanoparticles Using Depletion Method
Published on: April 11, 2020
C Weber1, M Michaelis, J U Vogel
1Institut für Pharmazeutische Technologie, Biozentrum Niederursel, Johann Wolfgang Goethe-Universität, Frankfurt a.M., Germany.
Abstract:
Diethylenetriaminepentaacetic acid (DTPA) is a commonly used chelating agent. Its antiviral, antibacterial and immunomodulatory effects are well documented. DTPA forms a highly stable complex with lead (II) with an increased absorption coefficient and a bathochromic shift of the absorption maximum compared to pure DTPA. Based on this complex a high-performance liquid chromatographic method for the quantitative detection of DTPA in biological fluids was developed. A calibration curve was prepared and linearity was shown in the concentration range between 10 mg l(-1) and 1000 mg l(-1) DTPA. The recovery in water and in human plasma showed the method to be suitable for routine use.
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