Читать книгу Fundamentals of Analytical Toxicology - Robin Whelpton - Страница 78

 Do not freeze whole blood if plasma or serum is to be analyzed

 Ensure that labelling is waterproof

 Ensure tubes are tightly sealed and well filled, but do not overfill tubes, especially glass tubes

 Do not keep too long to minimize freeze-drying effects

 Keep a record of freezer contents and freezer cleaning

 Keep a continuous record of freezer temperature via an electronic device

 Use a spark-proof freezer if flammable materials may be stored

 Fit an alarm in case of freezer failure

 Implement a defined sample disposal policy in collaboration with stakeholders