Determination of Alcohol Content in Alcoholic Beverages Using 45 MHz Benchtop NMR Spectrometer

Table 2

Percent alcohol content of alcoholic beverages using 45 and 400 MHz NMR spectrometers. Standard errors were calculated for 5 determinations performed for the 45 MHz instrument. HOAc = glacial acetic acid; ACN = acetonitrile; IS = internal standard; SA = standard addition method.

Alcoholic beverages	% alcohol; on label	% alcohol; 400 MHz; HOAc IS	% alcohol; 45 MHz; HOAc IS	% alcohol; 45 MHz; ACN IS	% alcohol; 45 MHz; HOAc SA	% alcohol; 45 MHz; ACN SA
Banana liqueur	49.5	46.80	49.03 0.24	53.69 0.19	54.56 0.46	56.46 0.58
Black Magic rum	47	46.07	48.81 0.19	49.71 0.34	41.40 0.48	47.41 0.35
Fleischmann’s vodka	40	37.07	39.15 1.13	40.04 2.07	44.56 0.28	44.62 1.42
Smirnoff vodka	40	37.83	43.39 0.15	42.21 0.25	42.05 0.78	44.50 0.49
Stolichnaya vodka	37.5	37.33	37.84 0.90	38.99 0.04	44.81 0.86	44.61 0.51
Three Olives vodka	30	28.05	33.54 0.26	32.39 0.62	30.04 0.59	34.05 0.42
Dr. McGillicuddy’s root beer liqueur	21	22.15	20.51 1.10	21.47 0.60	22.26 0.35	22.25 0.56
Cruzan Key Lime rum	21	20.50	26.33 0.21	20.34 0.45	22.94 0.25	23.96 0.31
Merlot red wine	13	11.30	13.36 0.09	13.41 0.15	15.89 0.32	15.32 0.31
Pinot Noir	11.5	10.13	11.47 0.07	11.25 0.11	10.22 0.37	11.58 0.39
Canadian ice wine	11	10.23	11.87 0.10	11.38 0.04	9.10 0.53	12.46 0.30
Tour de Soleil Rosé	11	11.50	9.94 0.28	11.51 0.43	13.51 0.20	14.49 0.76
Beringer White Zinfandel	10	10.56	9.26 0.32	13.10 0.24	10.92 0.21	13.13 0.22
Moscato white wine	9	7.69	9.09 0.28	9.69 0.06	10.62 1.50	10.40 0.90