Analysis of Halogens in Foods - Application Report

Halogens are a group of reactive elements that play an important biochemical role in living organisms as there are some forms of elements such as Cl and I that are essential for humans, while others such as Br could be toxic and cause cell damage. This is the main reason why this group of elements has been extensively studied in food and biological materials.

The sample preparation step and subsequent determination of halogens by ICP is a challenging analytical task with problems related to analyte losses and contamination plus interference caused by residual carbon in digested solutions.

Analytix公司的Milestone UltraWAVE微波消化系统克服了上述所有问题，可以使用过氧化氢和碱性溶液的混合物完成食物样品的完全矿化。试验表明，达到250°C消化温度的能力对于获得适当的消化质量至关重要，并确保了卤素的可靠分析，特别是碘。该方法的其他重要优点是可以形成水作为消化的产物，并通过消化的最终溶液的碱性pH值使ICP中分析的记忆效应最小。

The system also offers a much simpler approach than other sample preparation techniques commonly used for this type of analysis and allows digestion of different samples with different sample weights using different media all in the same run so there is no need to batch samples of the same type into separate runs

Contact Analytix for a copy of the application report.