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. Author manuscript; available in PMC: 2014 Jan 4.
Published in final edited form as: J Chromatogr A. 2012 Nov 19;1271(1):71–85. doi: 10.1016/j.chroma.2012.11.024

Fig. 16.

Fig. 16

Separations of four catecholamines and one related compound by the affinity HSCCC without (A) and with 1.5% DEHPA in the organic stationary phase (B). Experimental conditions: Apparatus and column: see Fig. 10 caption; solvent system: methyl tert.-butyl ether–water, ammonium acetate (0.1 M) in the organic stationary phase and HCl (0.05 M) in the aqueous mobile phase (A) and 1.5% DEHPA added to the organic stationary phase (B); sample: 5 mg each of three catecholamines and two related compounds indicated in the chromatogram; flow rate: 3.3 ml/min; elution mode: head to tail; detection: 280 nm; revolution: 800 rpm.