Abstract
Sorption of some high molecular weight bis-quaternary ammonium salts (QAS) on silica gel and cellulose was investigated. It was shown that QAS were not washed practically from the sorbents surface at pH = 1 – 9. Sorption of bismuth tetraiodide and iron (III) thiocyanate complexes and anionic dye — picric acid (Picr) onto silica gel modified with QAS was studied. The solid-phase reagents for bismuth(III) and iron (III) spectroscopic and visual test determination in natural water were worked out. Detection limits of Bi (III) and Fe (III) determination were 3 and 2 μg.l−1, respectively. Indicator paper for Fe(III) determination in different types of water was obtained. Silica gel modified with QAS and Picrate was used for determination of anionic surfactants in natural and waste waters using spectrophotometric and visual test methods. The detection limit was 0.05 μg.l−1
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Environmental Analytical Chemistry
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
