ABSTRACT
A pilot study was conducted to differentiate various brands of alcoholic beverages commonly sold in Hyderabad city (Andhra Pradesh, India). Various brands of liquor were scanned up to parts per billion (PPB) level for more than 72 elements using the following method – Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES). The results obtained showed significant difference in the elemental profiles of various brands of liquor. Absence of some elements such as copper showed marker parameter for the liquor brands. This survey shows that trace elemental profiling could be a reliable method for differentiating various brands of liquor.
ABSTRACT
An electrolyte cathode atmospheric glow discharge atomic emission spectroscopy(ELCAD-AES) has been developed to determine the hardness of water. By the standard curves of Mg and Ca, the concentration curves of Mg and Ca measurement were obtained. The limits of detection of Mg and Ca were 0.2 and 0.8 mg/L, respectively. The precision and recovery were experimentally elucidated, which indicated that the homemade ELCAD-AES system has a good performance. Finally, practical water samples such as tap water, boiled tap water, ground water, boiled ground water and lake water were analyzed by the method. The results were in agreement with those by the EDTA titration. This demonstrates that ELCAD-AES has the capacity for on-line determination of water hardness.