Inexpensive Balance

Robert Horton horton at
Sun Jan 21 17:52:34 EST 1996

Charles Carter (ccarter2 at wrote:
:   Does anyone know how I could measure out reagents in mg quantities 
: without a modern and expensive analytical balance?  (How did they do it 
: fifty years ago?)

If you know the extinction coefficient for your substance, you can measure
its "exact" concentration spectrophotometrically after you make up your

Yeah, spectrophotometers are expensive, too, but you might already have one :)

Robert M. Horton                        Have a :) day

"Scotty, try flushing the radioactive waste into the ventilation system!"

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