Figures index

From

An Experimental Introduction to Basic Principles of the Interaction of Electromagnetic Radiation with Matter

Patrick Schairer, Stephan Wagner, Ekkehard Geidel

World Journal of Chemical Education. 2018, 6(1), 29-35 doi:10.12691/wjce-6-1-6
  • Figure 1. Spectrometer setup (top) with the essential slit, sample department and diffraction grating parts (bottom)
  • Figure 2. Setup for the slit experiment
  • Figure 3. Emission spectra of three different types of LEDs with specific emission maxima, recorded with the self-built spectrometer
  • Figure 4. Recorded emission spectra of LED, halogen and xenon headlights
  • Figure 5. Emission spectrum of a laser headlight of a BMW 7 Series car
  • Figure 6. Emission spectra and photographs from the flame tests of lithium chloride (LiCl) and sodium chloride (NaCl)
  • Figure 7. Structure of carminic acid
  • Figure 8. Fully-grown female cochineal insects just before harvest (photograph taken from Frank Vincentz, CC)
  • Figure 9. Analyzed sherbet powder candies (left), salt of the carminic acid undissolved (middle) and dissolved in sodium hydroxide solution (right)
  • Figure 10. Absorption spectrum of carmine in sodium hydroxide solution (sample S1)
  • Figure 11. Five-point calibration with linear regression line