Here's a short list of uses of colorimetry.
- To test for chemicals in water, such as dissolved oxygen, chlorine, fluoride, cyanide, iron, molybdenum, zinc, and hydrazine.
- To determine the concentration of plant nutrients such as ammonia, nitrate, potassium, and phosphorus in soil.
- To monitor the growth of a bacterial or yeast culture.
- To assess color in bird plumage.
- To measure and monitor the colour in various foods and beverages
To measure the colours used in copy machines, fax machines, and printers
For various medical and clinical tests such as
o α-amylase in blood or urine
o cholinesterase activity in blood
o hemoglobin in blood
o iron in serum
o lactate dehydrogenase
o lead in urine/feces
o phosphatase in blood
o sugar in blood
o urea in blood
o uric acid in serum