Storage Conditions & Transportation
At Gold Biotechnology, we have tested the temperature sensitivity of many products. Without exception, we have found that for dry powders, desiccation of the product is more important than the temperature storage conditions (except for DTT, which melts at 38°C). Most scientists prefer to store their products desiccated at -20°C, and since this is not deleterious to the product (and for years-long storage this is probably good practice) our labels often recommend storage at -20°C.
Transport conditions often differ from long-term storage conditions. Most dry chemicals are stable at ambient temperatures for a period of time, even during the summer months. Transportation may be regarded as a short-term deviation from the storage requirements.
The most significant key variable for dry chemicals is moisture. GoldBio ships dry products under desiccant in order to ensure optimal product integrity.
The storage temperature found on the label of each product is specifically for long-term storage.
YES!
DTT is a chemical which has a low melting point (38°C). So during summer months, we may ship DTT with blue ice to maintain the product integrity and functionality while in warehouses or hot delivery trucks.
Agarose resin suspensions are susceptible to degradation if frozen. During winter months, resins may be shipped in styrofoam containers to ensure that they do not freeze during transport.
Antibiotic and other product solutions are more susceptible to temperature degradation during shipping and will be shipped overnight on blue ice. This ensures products are functionally stable for the longest possible time.
Competent cells and some other temperature sensitive products will always be packed with dry ice and shipped overnight to make sure that the products remain viable and do not degrade.