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Table 2 Regression parameters and formation constants ( K c ) for Thp/CD complexes as determined from spectra acquired in a 10% (v/v) ethanol phosphate solution

From: Inclusion complexes of trihexyphenidyl with natural and modified cyclodextrins

CD

Slope

Intercept

R 2

K (L/mol)

β-CD*

6.4 × 10-3

7.74

0.996

1200 ± 40

HP-β-CD**

5.4 × 10-3

3.78

0.992

700 ± 20

Me-β-CD**

5.0 × 10-3

3.87

0.972

770 ± 40

SBE-β-CD**

1.9 × 10-3

4.41

0.967

2300 ± 200

  1. *[CD] = 0 – 0.002 mol/L, **[CD] = 0 – 0.01 mol/L.
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