Used in research settings to quantify chlorophyllide a levels in plant and algal samples, this ELISA kit enables precise measurement of chlorophyll degradation products. It supports studies on photosynthesis efficiency, plant stress responses, and senescence processes. The assay is valuable in agricultural and environmental research, helping assess plant health under varying growth conditions, pollutant exposure, or nutrient deficiencies. Its high sensitivity allows detection in low-concentration samples, making it suitable for monitoring subtle physiological changes in plants and phytoplankton.