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File:Duboscq colorimeter 1870.png

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Summary

Description
English: A drawing and diagram of a Duboscq colorimeter, for visually obtaining a color match between two columns of fluid to arrive at a quantitative concentration ratio.
Čeština: Duboscqův kolorimetr, umožňuje srovnávat absorpci dvou roztoků.
Date
Source Chemical News, London, Jan. 21 1870, p. 31, via book Four centuries of clinical chemistry by Louis Rosenfeld
Author unclear

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Date/TimeThumbnailDimensionsUserComment
current03:42, 17 June 2009Thumbnail for version as of 03:42, 17 June 2009644 × 647 (109 KB)Dicklyon{{Information |Description={{en|1=A drawing and diagram of a Duboscq colorimeter, for visually obtaining a color match between two columns of fluid to arrive at a quantitative concentration ratio.}} |Source=Chemical News, London, Jan. 21 1870, p. 31, via

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