Improvement of the analysis of dansylated derivatives of polyamines and their conjugates by high-performance liquid chromatography.
The paper described a method for improving the hydrolysis of conjugated polyamines in PH fraction, isolated from the lichen Evernia prunastri, as well as the optimization of dansylation procedure of these polyamines on the basis of the pH value to which derivatization is achieved. Dansylated polyamines have been later separated by high-performance liquid chromatography (HPLC) using a gradient elution. Hydrolysis of conjugates requires acid treatment at room temperature rather than at 110 degrees C, as usually described. Dansylation is improved at high pH values, whereas removal of phenolics (mainly evernic acid), from the conjugates requires low pH values.
Fontaniella
B
B
Department of Plant Physiology, Faculty of Biology, Complutense University, Madrid, Spain.
Mateos
J L
JL
Vicente
C
C
Legaz
M E
ME
D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D003619:Dansyl Compounds / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D011073:Polyamines / Q000032:analysis* / Q000737:chemistry
D003619:Dansyl Compounds; D011073:Polyamines