Calcium content in sparkling wines may not exceed 80 mg/L due to the risk of aggregation with alginate capsules. The high calcium content usually found in wine and must emphasizes the need to develop alternative and appropriate techniques faster and cleaner than atomic absorption spectrometry (AAS). To obtain a robust model to predict calcium content, FT-NIR spectroscopy was used in 98 base white wine samples and 60 must samples from an Alentejo winery. The reference method for calcium determination was AAS technique, with a dry ashing sample procedure, as a prior treatment.

Results confirmed the ability of FT-NIR as an alternative technique to AAS, to predict calcium content in grape must and base wine. Advance knowledge of the calcium content in the grape must will help avoid obtaining a mixture of musts with a high calcium content in the same container.

起泡酒中的钙含量可能不超过80 mg / L，这是因为藻酸盐胶囊有聚集的危险。葡萄酒中通常含有很高的钙，必须强调比原子吸收光谱法（AAS）更快速，更清洁地开发替代和适当技术的需求。为了获得一个可靠的模型来预测钙含量，FT-NIR光谱法被用于来自阿连特茹酒庄的98个基本白葡萄酒样品和60个必须采样的样品中。钙测定的参考方法是AAS技术，采用干灰化样品程序作为先前处理。

结果证实了FT-NIR作为AAS替代技术的能力，可以预测葡萄汁和基础酒中的钙含量。对葡萄汁中钙含量的预先了解将有助于避免在同一容器中获得高钙含量的葡萄汁混合物。