Quick Measurement of Chlorophyll Concentration by Chlorophyll Meter

Abstract

A quick and simple new technique for measuring the chlorophyll content of water was devised using a chlorophyll meter (MINOLTA SPAD-502) normally used for the chlorophyll content of plant leaves. A test sample was filtered and the SPAD value obtained from the filter was converted to chlorophyll concentration. This study presents a formula for converting SPAD values to chlorophyll concentration.
This technique is remarkably efficient for measuring the chlorophyll concentration of waters containing specific algae, such as red-tide or water bloom. It is not yet suitable for non-specific test water.