The role of size exclusion chromatography-flame atomic absorption spectrometry in the treatment chemistry of potable water.
The percentage composition of Al13, [AlO4Al12(OH)24(H2O)12]7+, in water treatment coagulants is an important criterion in the development and use of polymeric coagulants. Polymeric coagulants are generally used in cold climates or with highly turbid waters. Size exclusion chromatography flame atomic absorption spectrometry (SEC-FAAS) can separate Al13 and monomeric Al within 6 min. The percentage composition of Al13 and monomeric Al is determined by solving two simultaneous equations. Due to overlapping peaks, a 10% error is associated with this method of quantification. This method can be used on coagulants of varying "r values" (r=[OH-]/[Al3+]), or on mixtures of those coagulants and monomeric aluminium.
Koether
Marina C
MC
Department of Chemistry and Biochemistry, Kennesaw State University, GA 30144, USA.
D002138:Calibration; D002845:Chromatography / Q000379:methods*; D004784:Environmental Monitoring; D011108:Polymers / Q000032:analysis / Q000737:chemistry; D013054:Spectrophotometry, Atomic / Q000379:methods*; D014873:Water Pollutants / Q000032:analysis*; D014881:Water Supply
D011108:Polymers; D014873:Water Pollutants