🌿 Plant Pigment Calculator
📘 Formulas
Chl a = (12.7 × A663) − (2.69 × A645)
Chl b = (22.9 × A645) − (4.68 × A663)
Total = (20.2 × A645) + (8.02 × A663)
Carotenoids = [(1000 × A470) − (1.82 × Chl a) − (85.02 × Chl b)] / 198
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❓ FAQ
What are A645, A663, and A470?
These are absorbance readings taken using a spectrophotometer at specific wavelengths.
Which method is used?
Arnon (1949) method for pigment estimation in plants.