"prolonged storage" is correct and usable in written English.
You can use it to refer to the act of keeping something in storage for an extended period of time. For example, "The artwork was placed in prolonged storage to keep it safe."
In addition, some specimen testing may have been limited by prolonged storage that was associated with diminution of specimen volume through evaporation or prolonged storage.
However, in most cases geothermal plants may heavily be relied on also during summer, thus preventing prolonged storage phases.
During prolonged storage of Li in the oxygenated electrolyte, the Li surface became moss-like and its interfacial resistance increased.
After prolonged storage in air dangerous shock-sensitive peroxides can form on the metal and under the lid of the container, and can detonate upon opening.
cDNAs were frozen at −20°C using Eppendorf LoBind tubes (Eppendorf) for prolonged storage.
In later experiments we found that using saline instead of PBS substantially enhanced viability of the assembled particles (measured as infectivity) during prolonged storage at −20°C.
The contamination of the meats results in changes in appearance and odour during prolonged storage.
However, recent studies suggest prolonged storage has minimal effects on the majority of CSF metabolites [ 94, 95].
In addition to these morphologic changes and their consequences, predictable biochemical and oxidative changes occur over prolonged storage.
With prolonged storage times, cell membranes of red blood cells (RBCs) undergo morphologic and biochemical changes, termed 'RBC storage lesions'.
The retention of antioxidant activity in stored plant material suggests the stability of bioactive chemicals during prolonged storage.
