Sentence examples for blood samples were frozen from inspiring English sources

Blood samples were frozen before shipping.

The blood samples were frozen at −80 °C until assayed.

All blood samples were frozen at −70°C until assay.

Upon reception at the laboratory, all cat blood samples were frozen at –70°C.

All blood samples were frozen and shipped on dry ice to laboratories for analysis.

Remaining blood samples were frozen and stored at −80°C until analysis.

A 1-ml blood sample was frozen at −80°C for determination of MAO activity as previously described and expressed as μmol of 4-hydroxyquinoline formed per 10 platelets per hour (Bannink et al. 2005).

Blood plasma samples were frozen at –20°C until analysis for drug concentrations.

Blood and urine samples were frozen at –20°C and transported on dry ice to New York.

Blood and brain samples were frozen at −80°C with 10% glycerol until use.

After a maximum of 24 hr at room temperature after sampling, blood and urine samples were frozen and kept at –20°C until they were transported with cooling blocks to Sweden for analyses.