The prey is then placed in a crucible in a muffle furnace at 550 ํC until all the organic matter has been burnt off (2 h is sufficient for most groups) and left in a desiccator to cool before weighing the ash content.
The prey is then placed in a crucible in a muffle furnace at 550 ํC until all the organic matter has been burnt off (2 h is sufficient for most groups) and left in a desiccator to cool before weighing the ash content.