Analysis of methylated humic acids from fossil fuels by size exclusion chromatography and NMR

1987 ◽  
Vol 11 (3) ◽  
pp. 139-149 ◽  
Author(s):  
Keith D. Bartle ◽  
Alan Pomfret ◽  
Amanda J. Pappin ◽  
Derek G. Mills ◽  
Hunay Evliya
1998 ◽  
Vol 161 (6) ◽  
pp. 619-625 ◽  
Author(s):  
Oleg A. Trubetskoj ◽  
Olga E. Trubetskaya ◽  
Gaida V. Afanasieva ◽  
Olga I. Reznikova ◽  
Bernardo Hermosin ◽  
...  

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