Can a spectrometer measure hardness
But today, scientists and engineers have a tool that sounds like it's straight out of science fiction: a device that can fire a tiny laser pulse at a surface and, from the brief, brilliant spark it creates, determine not just what the material is made of, but also how hard it is. The term comes from an expression of how difficult or "hard" it is to wash clothes with the water. Thus, by measuring only magnesium concentration in the final reaction stream, an accurate measurement of total hardness is possible. In general, the hardness of the water is as follows: Within the scope of chemical analyzes, total hardness determination studies are carried out by spectrophotometric method in authorized laboratories. Because the concentrations of Ca2+ and Mg2+ are usually much higher than those of other alkaline earth ions, hardness can be equated to [Ca2+] + [Mg2+], although this is usually expressed as mg/L of CaCO3. In water, the total sum of the Ca 2+ and Mg 2+ ions is a parameter called "total hardness" which allows you to classify the degree of hardness of the water.
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