1.4.3. Chemical stabilizers

There are several chemical agents that inhibit RNAses and thus reduce RNA degradation during handling and storage (see Section 4.4.4.). They do not provide any additional benefit to frozen samples, but can be useful for storing samples temporarily at room temperature. Their effectiveness varies and they do not prevent degradation absolutely (Chen et al., 2007) but they are useful if minor degradation can be tolerated and the samples can be processed within a few months of collection.