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  4. Closer to Zero: High Temperature Digestion of Baby Food and Infant Formula for Accurate Analysis of Arsenic

Closer to Zero: High Temperature Digestion of Baby Food and Infant Formula for Accurate Analysis of Arsenic

Summary:

Baby food and infant formula are rigorously examined for trace metal contamination that may occur during cultivation or processing. It is crucial to accurately analyze low ppb levels of inorganic contaminants such as arsenic (As), cadmium (Cd), lead (Pb), mercury (Hg), and others using ICP-MS. The US FDA EAM 4.7 method outlines two sample digestion methodologies  and this webinar will discuss the criteria for choosing between rotor based and cavity styled digestors. Additionally, it will cover how digesting samples at temperatures up to 250°C can enhance digestion efficiency. Application examples with spiked baby food matrices will be provided, with particular focus on the accurate determination of arsenic, which can be affected by residual carbon in ICP-MS analysis. Lastly, the webinar will highlight other valuable resources for trace metal analysts.

Key Learning Objectives:

•    Challenges and solutions in acid digestion of food samples for ICP-MS analysis
•    FDA EAM method 4.7: the two procedures for microwave digestion
•    How to choose the suitable microwave system
•    The arsenic enhancement effect in ICP-MS analysis and how to overcome it

Who Should Attend:

•    Lab chemists doing trace metal analysis of food samples in R&D, QC, or analytical service labs
•    Food chemists in state or municipal laboratories
•    Laboratory managers of ICP and trace metal labs

Mr. Peter Kettisch (语言: English)

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