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                      |  Inserito il - 21 febbraio 2012 :  17:48:04         
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                      | Copio dal sito SIGMA Storage/Stability
 Solutions at 1 mg/ml in buffer or culture medium are
 stable for approximately one month at 2-8 °C. Frozen
 aliquots can be stored up to 2 years. Repeated
 freeze/thaw cycles are not recommended. Solutions
 should be stored in silanized containers, since LPS
 can bind to plastics and certain types of glass
 (especially at concentrations of <0.1 mg/ml). If the LPS
 concentration is >1 mg/ml, adsorption to the sides of
 the vial is negligible. If glass containers are used,
 solutions should be vortexed for at least 30 minutes to
 redissolve the adsorbed product.
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