A Simple Spectrophotometric Method for Determination of Glyoxylic Acid in Its Synthesis Mixture

Table 2

Statistical comparison between spectrophotometric and HPLC methods.

Method	Linear regression equation	Correlation coefficient R^2	LOD (M)	LOQ (M)
Spectrophotometric	y = 56.737x + 0.016	0.998	0.001905	0.005773
HPLC	y = 24337025.58x + 219631.2716	0.997	0.052893	0.160282

LOD: limit of detection. LOQ: limit of quantitation.