lanthanum in media

alan alan
Thu Feb 9 11:08:38 EST 1995


I'm studying calcium fluxes in whole tick salivary glands incubated for about 4 hours.
Literature suggests 5mM lanthanum chloride should inhibit fluxes for othe systems.
Unfortunately, dissolving appropriate amount of lanthanum chloride heptahydrate causes a fluffy
cloudy-like precpitate.
The media I use is M199 (Sigma Cat#M-0393).
Does anybody know what the precipitate is? and more importantly any suggestions to circumvent
the problem?



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