Identification of alkylpolyoxyethylene glycols in the residues after biodegradation of their mixtures by CGC and previous derivatization.
This study deals with the identification of individual n-alkylpolyoxyethylene glycols among the products of oxyethylenation of n-nonyl- and n-decylalcohol and with the identification of these compounds in the reaction mixture after their biodegradation. The individual glycols were identified by their retention indices for the column temperature programmed linearly, by the correlation of the retention indices with the number of oxyethylene groups in the molecule and by increments of retention indices for the incoming oxyethylene group or methylene group. The biodegradation process of oxyethylenation products of reaction of one mole of n-nonylalcohol and n-decylalcohol, respectively, with three moles of ethylene oxide was studied. n-Alkylpolyoxyethylene glycols in oxyethylenation products or their residues isolated from the aqueous solution after their biodegradation processes were derivatized into acetates, trifluoroacetates and trimethylsilyl derivatives before carrying out their identification and determination.
Richter
P
P
Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Czech Republic.
Komárek
K
K
Reznícková
I
I
D000085:Acetates / Q000032:analysis; D001419:Bacteria / Q000378:metabolism; D001673:Biodegradation, Environmental; D002849:Chromatography, Gas; D017077:Culture Media, Conditioned / Q000032:analysis*; D005027:Ethylene Oxide / Q000032:analysis; D011092:Polyethylene Glycols / Q000032:analysis* / Q000302:isolation & purification*; D012722:Sewage / Q000382:microbiology; D014269:Trifluoroacetic Acid / Q000032:analysis; D014297:Trimethylsilyl Compounds / Q000032:analysis
D000085:Acetates; D017077:Culture Media, Conditioned; D012722:Sewage; D014297:Trimethylsilyl Compounds; D011092:Polyethylene Glycols; D014269:Trifluoroacetic Acid; D005027:Ethylene Oxide