Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. Photoelectric colorimetry was a hot topic in the mid-1930s when Arnoldus Goudsmit Jr. and William Henry Summerson ...

Object Name Clinical Manual, Klett-Summerson Photoelectric Colorimeter Colorimeter, Manual Measurements overall: 10 in x 7 1/2 in; 25.4 cm x 19.10004 cm overall: 10 in x 7 9/16 in x 1 3/8 in; 25.4 cm ...

To determine the rate of colour formation and the optimum time for taking readings in the Fiske and Subbarow method of estimating phosphorus micro -chemically, we have used a simple type of ...

Neuroscientist Catherine Franssen, Ph.D., scientist in residence this year at the Science Museum of Virginia, shines the light on a truly colorful device. The last time your doctor ordered lab work, ...

FOR the past few years we have been investigating the presence and distribution of selenium in the normal and dystrophic state 1,2. The biological role of selenium is as yet unknown; however, the ...

This is a preview. Log in through your library . Publisher Information The Water Environment Federation (WEF) is a not-for-profit technical and educational organization of 33,000 individual members ...