Rapid and Simple Method for the Determination of Vanadium in Beer by ICP AES with Ultrasonic Nebulization

An accurate and reproducible method for the direct determination of vanadium in beer using inductively coupled plasma atomic emission spectrometry (ICP AES) with an ultrasonic nebulization system is described. The analytical conditions were optimized in order to achieve the appropriate sensitivity. Samples were digested with a 1 : 1 nitric acid–perchloric mixture. The analytical detection limit was 0.4 g/L, and the relative standard deviation was 2.8% at the 10 ng/mL V levels. The method was applied to determine vanadium (15.9–244.3 g/L) in 11 different samples of beer widely consumed in the Argentine Republic.