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. 2016 Oct 20;6:35764. doi: 10.1038/srep35764

Table 3. Association constant (Ka) and thermodynamic parameters ΔHo and ΔSo of different vitamin-β-cyclodextrin inclusion complexes.

  Temp/Ka Ka × 10−3/M−1b ΔHo/kJ mol−1b ΔSo/J mol−1K−1b
Nicotinic acid 288.15 1.62 −20.59 −9.96
293.15 1.39
298.15 1.25
303.15 1.07
308.15 0.92
313.15 0.82
Ascorbic acid 288.15 4.19 −21.67 −5.87
293.15 3.58
298.15 3.10
303.15 2.68
308.15 2.33
313.15 2.03

aStandard uncertainties in temperature u are: u(T) = ±0.01 K.

bMean errors in Ka = ±0.02 × 10−3 M−1; ΔHo = ±0.01 kJ mol−1; ΔSo = ±0.01 J mol−1K−1.