Research Article

The Development and Application of Novel IR and NMR-Based Model for the Evaluation of Carminative Effect of Artemisia judaica L. Essential Oil

Figure 2

(a) Linearity study for the effect of A. judaica oil and thymol on the response of IR carbonyl stretching of CO2; samples of concentrations within the range of 0-1.0 mg/mL showed a linear behavior (). (b) Linearity study of CO2 solution treated with several concentrations of A. judaica oil and thymol versus the consumed amount of NaOH needed to neutralize them (). The close similarity between slopes of curves (a) and (b) implies the accuracy of IR method in quantifying CO2 content.
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