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Trace element determination of Cr, Fe, Cu and Zn in gelatin

Gelatin is a flavorless foodstuff, derived from collagen obtained from various animal by-products. It is commonly used in food, pharmaceuticals, photography, and cosmetics manufacturing. In these highly regulated industries gelatin is required to meet stringent quality standards. The United States, European, and Japanese pharmacopeias all have monographs requiring testing for heavy metals such as Cr, Zn and Fe. In the food industry the Food Chemical Codex and the European Regulation No. 853/2004 stipulate the residue limits for a number of elements including Cu, Cr, Zn and Fe. This work demonstrates the capabilities of the Epsilon 1 to meet these residue limits.

Measurements were performed using an Epsilon 1 energy dispersive X-ray fluorescence spectrometer, equipped with a 50 kV silver-anode X-ray tube, 6 filters and a high-resolution silicon drift detector. The data was automatically processed by the Epsilon 1 software.

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