International Journal of Analytical Chemistry / 2020 / Article / Tab 1

Research Article

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

Table 1

Comparison between spectrophotometric and HPLC methods in terms of standard deviation, recovery%, and RSD%.

MethodGlyoxylic acid concentration in the mixture MDetermined glyoxylic acid in the mixture MStandard deviation ± MRecovery (%)RSD (%)

Spectrophotometric0.350.3540.001321010.37
0.500.5040.001101090.22

HPLC0.350.3610.004661031.29
0.500.5080.004571020.90

Samples diluted 25 times in the spectrophotometric determination only. RSD: relative standard deviation.

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