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AN43175: The Migration of Elements from Toys and Speciation of Chromium (VI) in Toy Material Using a IC-ICP-MS Solution

Instrument Type: IC

Speciation determinations of ionic compounds are important to determine the concentration of the more toxic form in the total elemental composition. Chromium compounds have brilliant hues and consequently are often used in dyes and inks however, chromium compounds are toxic. Chromium VI species is very toxic so it is monitored as an extractable in children’s toys. This method determines extractable Chromium VI (SOP EN 71-3:2012) in an ink sample separated by ion chromatography (IC) on IonPac AG7 guard column and detected by Inductively Coupled Plasma Mass Spectrometry (ICP-MS) at ng/L.

AN1079: Simultaneous Determination of Trivalent Chromium and Hexavalent Chromium Using Accelerated Solvent Extraction and Ion Chromatography

Instrument Type: IC

Chromium mainly occurs in trivalent chromium (Cr(III)) and hexavalent chromium (Cr(VI)) forms. Due to highly oxidizing properties and high skin permeability, Cr(VI) is extremely toxic. The limit for Cr(VI) is low in all industries, such as 0.005 mg/kg in toy industry according to the European Union’s Toy Safety Directive of 2009 (2009/48/EC). This application determines Cr(III) and Cr(VI) simultaneously and is an improvement over TN24. Accelerated solvent extraction is used to extract both Cr(III) and Cr(VI), and to derivatize Cr(III) to achieve a simpler and faster detection.