Abstract.
New membranes containing a few micrograms of various complexing reagents in a Nafion® matrix were produced on the surface of quartz glasses (reflectors). The reflectors were immersed in standard water solutions containing various, very low concentrations of lead salts (1–50 ng mL−1). The reflectors were left in 5–500 mL solutions for many hours; when the equilibration stage was complete, they were cleaned with ultrapure water and left to dry. The stability (adhesion) of the membranes was tested. Analysis of the samples was performed by Total Reflection X-Ray Fluorescence and cross-evaluated by Atomic Absorption Spectrometry. A few ng mL−1 of the lead were determined. The effect of various experimental parameters (complexing agent, membrane composition, equilibrium time, sample volume etc.) was examined.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Koulouridakis, P., Domazos, E., Galani-Nikolakaki, S. et al. Low Level Lead Determination After Membrane Complexation and TXRF Analysis. Microchim. Acta 146, 245–250 (2004). https://doi.org/10.1007/s00604-004-0205-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00604-004-0205-7