Group writeup

Group writeup - Results Experiment 1 Upon studying the...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Results Experiment 1 Upon studying the absorption spectra for barley grown in light and dark environments, we find that different wavelengths are absorbed. Figure 1 below indicates that both light grown barley and dark grown barley strongly absorbed wavelengths at 425 and 475 nanometers. However, light grown barley had an additional weak absorption peak at 675 nm. Absorption Peaks for Light Grown and Dark Grown Barley 0 100 200 300 400 500 600 700 800 1 2 3 Absorbtion Peak Wavelengh (nm) Light Grown Dark Grown Figure 1: Absorption peaks for barley grown in light and dark environments In Figure 2 below, we calculated the retention factors using thin layer chromatography. Light grown barely expressed four pigments on the TLC strip, with retention factors 0.50, 0.64, 0.79, and 0.93. Note that the pigment with retention factor of 0.93 appeared green on the TLC strip, while the rest appeared yellow. The dark grown barley expressed two pigments on the TLC strip, with retention factors 0.69 and 0.81. Both of these pigments appeared yellow.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/02/2008 for the course CHEM 30AL taught by Professor Henary during the Spring '08 term at UCLA.

Page1 / 3

Group writeup - Results Experiment 1 Upon studying the...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online