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Spectrophotometry measures light absorption: A = log(I₀/I) = εbc (Beer-Lambert law), used for quantitative analysis.

चरण-दर-चरण मार्गदर्शिका

  1. 1Input measured absorbance, path length, molar absorptivity
  2. 2Calculate concentration
  3. 3Generate calibration curve if multiple samples

हल किए गए उदाहरण

इनपुट
Absorbance 0.5, ε = 5000 M⁻¹cm⁻¹, b = 1 cm
परिणाम
c = A/(εb) = 0.5/5000 = 1×10⁻⁴ M

सामान्य गलतियां जिनसे बचना है

  • Using wrong wavelength for compound
  • Not accounting for baseline absorbance

अक्सर पूछे जाने वाले प्रश्न

What's molar absorptivity?

Characteristic of molecule at specific wavelength; tabulated values for known compounds.

सेटिंग्स