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A comparison by warburg respirometry and die‐away studies of the degradability of select nonionic surface‐active agents
Author(s) -
Garrison L. J.,
Matson R. D.
Publication year - 1964
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02663960
Subject(s) - respirometry , pulmonary surfactant , respirometer , chemistry , surface tension , biodegradation , oxygen , die (integrated circuit) , chemical engineering , chromatography , organic chemistry , materials science , nanotechnology , biochemistry , thermodynamics , physics , engineering
The relative biodegradability of several classes of nonionic surfactants have been determined by Shake Flask, Die‐Away and Warburg Respirometer tests. Analytical techniques used to follow the degradation processes involved the measurement of loss of surfactant properties (surface tension or foamability), colorimetric determinations and oxygen uptake studies. Nonionic products prepared from naturally occurring or synthesized straight chain hydrophobes were shown to exhibit based upon branched chain materials. A good correlation of data by the various analytical techniques was obtained on the straight chain based products.