Thermodynamic and Extrathermodynamic Studies of Enantioseparation of Imidazolinone Herbicides on Chiralcel OJ Column

Table 7

Linear correlation relationship of Δ(Δ𝐻^∘_𝑒)_𝑖−𝑗 versus Δ(Δ𝑆^∘_𝑒)_𝑖−𝑗 in a single mobile phase across all ten functionary substitutions within the homolog.

2-propanol concentration	𝑆(−)			𝑅(+)
	Slope 𝑚𝑒	Intercept 𝑛𝑒	𝑟^2	Slope 𝑚𝑒	Intercept 𝑛𝑒	𝑟^2
15%	0.211	−0.45	0.694	0.261	0.274	0.71
20%	0.228	−0.441	0.737	0.276	0.19	0.758
25%	0.243	−0.417	0.775	0.285	0.133	0.805
30%	0.254	−0.393	0.806	0.296	0.087	0.845
35%	0.267	−0.316	0.894	0.295	0.086	0.905