For Cryogenic Samples, Dry Ice Is Unwise
To avoid deterioration, cryogenic samples are generally stored in liquid nitrogen or its vapor phase at temperatures around -170°C. During transport, some scientists place these samples on dry ice. However, research shows putting cryogenic samples on dry ice can warm them faster than exposure to room temperature. The culprits: convection and conduction. Liquid Nitrogen Avoids […]
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