2013•Guizhou kexueRequires access

Determination of Chromium in Edible Gelatin by Hot-Water Digestion-Graphite Furnace Atomic Absorption Spectrometry

Long Zhao-hang

Abstract

A method was established for determination of chromium in edible gelatin by hot-water digestion-graphite furnace atomic absorption spectrometricn. Parameters of graphite furnace atomic absorption spectrometric for the method were studied. The temperatures were 90～500℃ ,1 100℃ and 2 150℃ about drying,pyrolysis and atomize respectively,Under the optimum testing conditions,the detection limit of chromium is 0.05ng/ml and sample recovery rate of 93%～106.0% . The method was rapid,convenient,accurate,sensitive and suitable for determination of chromium in edible gelatin.

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Key concepts: Graphite furnace atomic absorption, Chromium, Gelatin, Graphite, Detection limit, Atomic absorption spectroscopy, Chemistry, Digestion (alchemy)