Chlorophyll Concentration Calculator
Calculate chlorophyll concentration from spectrophotometer readings
About this calculator
The Chlorophyll Concentration Calculator determines the exact amount of chlorophyll in plant samples using spectrophotometer absorbance readings. This tool is essential for botanists, researchers, and students studying photosynthesis, plant health, and environmental science. By converting optical density measurements into precise chlorophyll concentrations, it enables accurate analysis of plant pigment content, helping assess vegetation stress, nutrient deficiency, and overall plant vitality in laboratory and field studies.
How to use
Input your spectrophotometer absorbance readings at specific wavelengths (typically 663nm and 645nm for chlorophyll a and b). Enter the sample volume and extraction solvent used. The calculator applies standard equations to compute chlorophyll concentration in mg/L or μg/mL, providing instant results for your plant pigment analysis.
Frequently asked questions
What wavelengths should I measure for chlorophyll analysis?
Measure absorbance at 663nm and 645nm for chlorophyll a and b respectively, with 80% acetone as the standard extraction solvent.
Why is my chlorophyll concentration showing negative values?
Negative values indicate measurement errors, contaminated samples, or incorrect wavelength readings. Check your spectrophotometer calibration and sample preparation.
How accurate are spectrophotometer-based chlorophyll measurements?
Spectrophotometer methods provide 95-98% accuracy when proper extraction protocols are followed and instruments are correctly calibrated with appropriate blanks.