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首页> 外文期刊>Analytical and bioanalytical chemistry >Direct determination of total sulfur in wine using a continuum-source atomic-absorption spectrometer and an air-acetylene flame
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Direct determination of total sulfur in wine using a continuum-source atomic-absorption spectrometer and an air-acetylene flame

机译：使用连续源原子吸收光谱仪和空气乙炔火焰直接测定葡萄酒中的总硫

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摘要

Determination of sulfur in wine is an important analytical task, particularly with regard to food safety legislation, wine trade, and oenology. Hitherto existing methods for sulfur determination all have specific drawbacks, for example high cost and time consumption, poor precision or selectivity, or matrix effects. In this paper a new method, with low running costs, is introduced for direct, reliable, rapid, and accurate determination of the total sulfur content of wine samples. The method is based on measurement of the molecular absorption of carbon monosulfide (CS) in an ordinary air-acetylene flame by using a high-resolution continuum-source atomic-absorption spectrometer including a novel high-intensity short-arc xenon lamp. First results for total sulfur concentrations in different wine samples were compared with data from comparative ICP-MS measurements. Very good agreement within a few percent was obtained.
机译：葡萄酒中硫的测定是一项重要的分析任务，尤其是在食品安全法规，葡萄酒贸易和酿酒学方面。迄今为止，用于硫测定的现有方法均具有特定的缺点，例如高成本和时间消耗，精密度或选择性差或基质效应。本文介绍了一种运行成本低的新方法，用于直接，可靠，快速，准确地测定葡萄酒样品中的总硫含量。该方法基于通过使用包括新型高强度短弧氙灯的高分辨率连续谱源原子吸收光谱仪测量普通空气乙炔火焰中单硫化碳（CS）的分子吸收的方法。将不同葡萄酒样品中总硫浓度的最初结果与比较ICP-MS测量数据进行比较。在百分之几之内获得了非常好的协议。

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