History of Wells Fargo. This article outlines the history of Wells Fargo & Company from its origins to its merger with Norwest Corporation and beyond. The new company chose to retain the name of Wells Fargo and so this article also includes the history after the merger.
Other method takes advantage of the varying conductivities of blood at. different concentrations of blood. In Hemoglobincyanide method hemoglobin is chemically converted to form a cyanmethemoglobin. which is having maximum absorption around 540nm wavelength. The hemoglobin concentration is determined.
A small, clip-on device shines a light through your finger or earlobe and measures the amount of light absorbed by the oxygen-carrying hemoglobin in the red blood cells. By calculating the amount of light absorption, the device can measure how saturated the hemoglobin is with oxygen molecules, or O2 sat.