NASA NTRS · 20040081213
Preservation of Liquid Biological Samples
Abstract
The present invention related to the preservation of a liquid biological sample. The biological sample is exposed to a preservative containing at least about 0.15 g of sodium benzoate and at least about 0.025 g of citric acid per 100 ml of sample. The biological sample may be collected in a vessel or an absorbent mass. The biological sample may also be exposed to a substrate and/or a vehicle.
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Putcha, Lakshmi, Nimmagudda, Ramalingeshwara. 2004-04-06. Preservation of Liquid Biological Samples. https://ntrs.nasa.gov/citations/20040081213
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