Cent Eur J Public Health 1996, 4(Supplement):S49-S50
Study of mercury content in edible mushrooms
- Laboratory of General Toxicology and Environment, Faculty of Pharmacy, Strasbourg, France
The influence of time and temperature of mineralisation of mushrooms was studied for mercury determination by cold vapor atomic absorption. Optimal conditions for a complete mercury recuperation were obtained using a mixture of nitric and sulphuric acid (6 ml HNO3, 4 ml H2SO4) in presence of KMnO4 (3 ml of a 0.44 M solution) at 95 degrees C for 4 h, with 1 g wet sample. The detection limit of method was 3.2 ng/g. These conditions have shown high reproductibility and accuracy.
Published: July 1, 1996 Show citation