Hobbies And Interests
Blood Testing
The colorimeter is used to test the concentration of hemoglobin within the blood. The hemoglobin is the oxygen-carrying component of red blood cells. When the hemoglobin has oxygen-rich blood, the blood appears red. A high concentration of hemoglobin within the blood is an indicator of a healthy individual. Low levels of hemoglobin suggests that the muscles, internal organs and brain are not receiving sufficient oxygen supply.
Water Testing
Colorimeters are used to test water in a number of settings. The colorimeter may test for impurities in tap water or elements that may be present in a water supply. Special filters are used to test for each type of impurity that may be present. Digital colorimeters can register even very small color changes, indicating the presence of these impurities. Chemicals that are commonly tested for in water include chlorine, fluoride, cyanide, iron, and zinc.
Plants
Colorimeters can be used on plants to test for a variety of substances, including concentrations of glucose, chlorophyll, ammonium and nitrates present in the leaves of the plant. This test crushes up leaves and adds a small amount of acetone to the leaf to liquify the material. The liquid is then measured by the colorimeter. Filters are changed on the device to test for each specific item's concentration. This information is helpful to farmers to determine if fertilizer or other materials need to be introduced to crops.
Soil
The soil can also be tested to determine the nutrients present. Colorimeters test for nitrogen, potassium and phosphorus levels of the soil. These are necessary for plants to grow and produce high yields from the fields. Many colorimeters also have pH meters which also can determine the pH level of the soil to verify it meets the crop's comfort zone for maximium growth.