ABSTRACT
The arsine generation spectrophotometric procedure for the determination of arsenic has been applied to the determination of arsenic in fish. A wide variety of analytical methods have been employed for the determination of metals and non-metals in fish. Cadmium spiking recovery experiments were carried out on fish tissue samples and on an authenticated reference sample under specified conditions of analysis. An attractive feature of this method is that both the natural copper content of the fish organs and the concentrations of added tracers are determined on the same sample, making two measurements of isotopic ratio – one before and one after the addition of the standard 63Cu spike. Nitric acid-perchloric acid digestion in a Teflon autoclave bomb has been used to prepare digests of finely powdered freeze-dried fish. The flameless atomic absorption spectrometric method has also been applied to the determination of tin in fish.
