Determination of Methanol, Acetaldehyde, and Ethyl Acetate in Thousand Folds of Ethanol Sample by Headspace Gas Chromatography with Mass Spectrometry

Table 6

Linear regression of acetaldehyde, ethyl acetate, methanol, and ethanol.

Compound	Concentration range (mg/L)	Linear regression	Linear relationship (r^2)
Acetaldehyde	5–240	y = (0.01360 ± 0.00093)x + (0.00501 ± 0.00036)	0.9999
Ethyl acetate	5–240	y = (0.0790 ± 0.00568)x − (0.02641 ± 0.00053)	0.9998
Methanol	5–240	y = (0.00125 ± 0.00006)x − (0.00043 ± 0.00011)	0.9998
Ethanol	50–2400	y = (0.00363 ± 0.00015)x − (0.01855 ± 0.00053)	0.9999