A plastic bag freezing method for preparation of faeces for analysis

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Abstract
In order to obtain a completely homogeneous mixture of a normal stool it is found necessary only to homogenize the stool samples for 2 min using a paint-can shaker. A method for handling faeces in chemical analyses is based on a freezing procedure in which the homogenized faeces are frozen in a plastic bag separated into different compartments. The frozen faeces can be cut off and weighed for analysis. Compared to the usual method, the plastic bag freezing method is faster and avoids unpleasant smell.