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C B A C 0 C' 10 20 30 40 Retention Time (minute) Figure 2 Reverse phase C18 HPLC chromatogram of surface active material from silica gel liquid chromatography. Fraction C was identified as the most active compound.
Sharma, M. M. & Georgiou, G.Microbial enhanced oil recovery research. Annex 5, Summary annual report, 1991--1992,
report,
December 31, 1992;
Austin, Texas.
(https://digital.library.unt.edu/ark:/67531/metadc1314592/m1/11/:
accessed July 16, 2024),
University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu;
crediting UNT Libraries Government Documents Department.