Glycerol: v/v or w/v?

Hiranya S. Roychowdhury hroychow at
Thu Feb 24 18:55:30 EST 2000

Usually w/v.... especially when the conc. is important. 

At 10:20 PM 2/24/00 -0000, John Rebers wrote:
>When making a solution of glycerol that is supposed to be 50% (for
>example), is this to be interpreted as a volume/volume percentage (i.e. 50
>ml of glycerol in 100 ml final volume) or a weight/volume pecentage (i.e.
>50 g or glycerol in 100 ml final volume). I suppose it could also be
>interpreted as a weight/weight solution.... Since glycerol is a liquid, I'd
>always used the volume/volume interpretation, but just ran across someone
>who was using weight/volume instead. Curious as to which was correct, or at
>least more commonly used.
>John E. Rebers
>Department of Biology
>Northern Michigan University
>1401 Presque Isle Avenue
>Marquette, MI  49855
>jrebers at

Dr. Hiranya Sankar Roychowdhury
New Mexico State University
Las Cruces, NM 88003
Ph. (505) 646-5785
hroychow at


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