Update: 30 September, 2023
This method is applicable to a wide range of animal and plant tissues including dairy products, grains, fruit and vegetables and oil seeds such as poppy seeds. It is suitable for cadmium concentration in the range 0.01-0.3 µg/g. Sample is digested by wet ashing and cadmium is then complexed and extracted into an organic solvent. After removal of the spent aqueous phase the organo metallic complex is destroyed by the addition of dilute HNO3. This aqueous phase containing the stripped cadmium is then analyzed by Graphite Furnace Atomic Absorption Spectroscopy (GFAAS). The additional stripping step is employed to improve precision and facilitate the use of aqueous standards.
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MD5 Checksum: 9B7DA5FA03814C2EA09C6B1BE9CA3766
Publication date: 12 June, 2012
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PDF Link: Agilent Low level measurement of cadmium in foods Application Note PDF