Home-Made Membraneless Vaporization Gas-Liquid Separator for Colorimetric Determination of Ethanol in Alcoholic Beverages

Table 3

Ethanol concentrations and their recoveries in beverage samples by the proposed MBL-VP unit in comparison with the conventional method.

Sample			Ethanol concentration (% v/v)			Recovery (%)
No.	Type	Appearance	Declared on label	Pycnometry (n = 1)	This work ± SD, (n = 3)
1	Beer	Light brown	5.0	4.79	4.6 ± 0.6	109
2	Beer	Brown	6.5	6.45	6.3 ± 0.6	101
3	Beer	Light brown	5.5	5.76	5.6 ± 0.2	97
4	Wine	Red	7.0	7.63	8.5 ± 1.8	89
5	Wine	Red	12	12.28	13.0 ± 1.6	92
6	Spirit	Colorless	17.8	17.94	18.0 ± 2.9	97
7	Spirit	Dark brown	35	36.6	37.0 ± 1.8	96
8	Spirit	Colorless	7.0	7.47	8.1 ± 0.2	101
9	Spirit	Colorless	40	40.27	35.0 ± 0.7	89
10	Cocktail	Orange	3.8	3.78	4.1 ± 0.7	99
11	Cocktail	Light blue	5.0	5.23	5.8 ± 0.8	90
12	Cocktail	Light green	4.5	4.36	4.7 ± 0.7	101