. Author manuscript; available in PMC: 2021 Mar 1.

Published in final edited form as: J Chromatogr B Analyt Technol Biomed Life Sci. 2018 Mar 2;1083:86–92. doi: 10.1016/j.jchromb.2018.02.043

Table 3.

Physicochemical properties of analytes of interest.³⁰

Analytes	Strongest basic pK_a	Strongest acidic pK_a	logP	logS^† (at pH =1.7)
HDA	10.51	-	0.04	2.16
IPDA	10.54	-	0.96	1.05
BMAA	9.86	1.96	−3.77	2.70
TMAO	4.66	-	−0.93	2.58

^†

S = Aqueous solubility measured in mol/L. LogS value for pH =1.7 is reported because it is the closest pH reported in reference 30 that is equivalent to the pH of the mobile phase (pH = 2).