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. 1979 Feb 21;59(4):287-94.
doi: 10.1007/BF00689610.

A gravimetric system for lyophilized samples in the sub-microgram range

M Lezzi

A gravimetric system for lyophilized samples in the sub-microgram range

M Lezzi. Histochemistry. .

Abstract

A new quartz fiber balance is described which is evacuated and electrically shielded. This balance minimizes the problems of moisture uptake by the lyophilized sample, air convection inside the balance and static electricity. Besides it offers a wider useful weighing range and a higher handling comfort. It could be shown that in the regular (i.e. not evacuated) balance the moisture uptake varies considerably with the humidity of the air and with the kind of sample analyzed, and that it might be greater than previously reported.

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