When collecting in the field, biological samples can be kept cool at 0 C in ice slush, or frozen at −20 C in a crushed ice salt (NaCl) cold mixture, in well-insulated containers, for several hours or days.
When collecting in the field, biological samples can be kept cool at 0 C in ice slush, or frozen at −20 C in a crushed ice salt (NaCl) cold mixture, in well-insulated containers, for several hours or days.