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. Author manuscript; available in PMC: 2015 Aug 8.
Published in final edited form as: J Chromatogr A. 2014 May 28;1354:65–74. doi: 10.1016/j.chroma.2014.05.056

Table 2.

Partial molar enthalpies of retention for methylparaben through butylparaben obtained from slopes of the van‘t Hoff plots(Fig. S1). Chromatographic conditions can be found in section 3.2.2.

Solute −ΔH0/R (K) Error Intercept Error
Methylparaben 1999 11 −5.09 0.03
Ethylparaben 2219 15 −4.87 0.05
Propylparaben 2566 21 −4.98 0.07
Butylparaben 2961 26 −5.24 0.08