Wine is mainly composed of water and ethanol, but also contains various nutritional elements. The sources of trace elements in wine are mainly raw materials for winemaking, water for syruping, storage containers, and water for degradation. Studies have found that pottery jar materials contain trace elements such as potassium, aluminum, iron, copper, lead, manganese, nickel, and cadmium, which are continuously incorporated during the storage of wine. In addition, the more trace elements related to the organoleptic properties of the wine, such as potassium, copper, iron, and manganese, the better the quality of the wine. It is important to note that trace elements play different roles in the wine. Among the trace elements, potassium is related to the taste quality of the wine. Copper, iron, and manganese are reductive and promote the aging of the wine. Some countries have restrictions on the maximum metal content of wine, which must be met before the wine can be exported to these consumer markets.
The exact trace elements in each wine may vary depending on the variety, fermentation process, and aging process, etc. Lifeasible offers professional wine nutritional elements testing solutions to analyze over 14 beneficial elements and heavy metals in wine, such as sodium, potassium, calcium, iron, magnesium, zinc, lead, etc. Our labs will perform tests according to strict international standards and provide reliable analytical results. Depending on the specific trace elements you are interested in, we can help select the right method based on the customer's testing needs and basic testing information.
Below are our analytical methods for determining metal content in wine samples.
| Metal Elements Testing Items in Wine | Metal Elements Testing Methods in Wine |
| Na, K, Mg, Ca, Fe, Cu | Flame Atomic Absorption Spectrometry (FAAS) |
| Al, Cr, Cd, Pb, Cd, Se, As, Cd, Cr, Pb | Electrothermal Atomic Absorption Spectrometry (ETAAS) |
| Sb | Hydride Generation-Atomic Absorption Spectrometry (HG-AAS) |
| Cd | Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) |
| Mn, Fe, Ni, Cu, Zn, Sn, Ce, Pb, As, Li, Mg, Al, Co, Cd, Hg, Ti | Inductively Coupled Plasma Mass Spectrometry (ICP-MS) |
| Cd, Pb, Cu | Electrochemical Stripping Methods of Anodic Stripping Voltammetry (ASV) and Stripping Potentiometry (PSA) |
| Li, Na, K, Mg, Ca, Mn | Ion Chromatography (IC) and Capillary Zone Electrophoresis (CZE) |
Lifeasible offers comprehensive trace metal analysis to determine trace contamination, monitor the levels of nutritional trace elements added to certain wines during processing to ensure authenticity, and determine the contribution of metals to flavor and wine quality. Our international level of testing has earned us the trust of many clients. If you are interested in our solutions, please contact us for a technical consultation and quotation.
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