ResourceSpectroscopy
Analysis of Cu and Zn in Red Wine using Atomic Absorption Spectrometry
21 Jul 2015The quality standards are fixed in the national wine regulations such as the German “Weinverordnung”, 2002 and the European Union's new wine regulations from 2009, which includes the production process, alcohol concentrations and the maximum allowable concentrations of the elements. A meticulous quality control procedure is essential, and during each stage of the production process spectroscopic methods such as AAS-, ICP-, FTIR-, and UV-VIS spectroscopy are applied for quality assurance or for product characterisation. For the quantitative determination of copper and zink, the atomic absorption spectrometry is the method of choice. This application note describes the use of the Shimadzu flame Atomic Absorption Spectrophotometer AA- 7000F in the control of copper and zinc in wine.
Links
Tags
Atomic Absorption / Emission SpectroscopyAtomic absorption spectroscopy (AAS) and atomic emission spectroscopy (AES) — also called optical emission spectroscopy (OES) — are used to detect the elemental constituents in samples. Both techniques involve the atomization of a sample. Atomic absorption spectrometers may use a flame or furnace to create an atomic vapor of the sample before irradiation with spectral light. Optical emission spectrometers may use a flame, inductively coupled plasma (ICP), microwave plasma (MP) or spark arcs to atomize and excite the sample. At higher excitation energies, electrons can be emitted instead of photons, which can be useful for samples that can’t be atomized and for surface analysis. Explore electron spectroscopy equipment such as Auger spectrometers and photoelectron spectrometers for surface elemental analysis of samples. Find the best atomic absorption, photoelectron and optical emission spectrometers in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Food and Beverage AnalyzersFood and Beverage Analyzers are commonly used to provide information about the chemical composition, structure and physical properties of food materials.Food and Beverage ProcessingFood and Beverage Processing involves the preparation of food products for further analysis. Typical instrumentation includes blanchers, color sorters, cookers, grinders, and refrigeration. These are used to replicate the processes commonly used in the commercial preparation of food and beverages.WineElemental AnalysisElemental analysis involves determining the elemental composition of a sample, often used in environmental, pharmaceutical, and material sciences. Techniques like ICP-MS, X-ray fluorescence, and atomic absorption spectroscopy allow precise quantification of elements such as metals and nonmetals in complex matrices. Browse our peer-reviewed product directory to find the best elemental analysis tools, compare products, check reviews, and get pricing directly from manufacturers.SpectrometrySpectrometry is a technique used to measure the mass-to-charge ratio of ions. It provides valuable information about the composition, structure, and molecular weight of compounds. Used across a variety of fields, including chemistry, biology, and environmental science, spectrometry is essential for identifying substances, analyzing mixtures, and developing new products. Explore the best spectrometry tools in our peer-reviewed product directory; compare products, check reviews, and get pricing directly from manufacturers.Alcoholic BeveragesThe analysis of alcoholic beverages involves testing their composition, quality, and safety, including alcohol content, flavor compounds, and impurities. This is essential for quality control and regulatory compliance. Explore tools for alcoholic beverage testing in our peer-reviewed product directory; compare products, check reviews, and get pricing directly from manufacturers.Beverage AnalysisBeverage analysis involves testing and evaluating the composition, quality, and safety of drinks, from alcoholic beverages to soft drinks. Techniques like chromatography and spectroscopy are commonly used to analyze flavors, nutrients, contaminants, and additives. Browse our peer-reviewed product directory to find the best beverage analysis tools, compare products, check reviews, and get pricing directly from manufacturers.