I'm working on a Chromatography Lab and need to identify the pigments that appear on the paper. I've found the names of the green and yellow pigments, but I can't identify a brownish streak that appeared when a paper consisting carnation pigement was placed in water. Help please!
Brown? Are you certain it is not "burnt umber"? Burnt umber is in fact dark yellow.
http://en.wikipedia.org/wiki/Burnt_umber
http://realcolorwheel.com/rcw19brown.htm
To help identify the pigments present in your chromatography lab, there are a few steps you can take:
1. Collect more information: Take note of the specific characteristics of the brownish streak, such as its shade, intensity, and any noticeable texture. Additionally, consider the properties of the carnation pigment you used, as this information can provide valuable clues.
2. Research: Look up the various pigments commonly found in carnation flowers. Consider their colors and chemical composition. Look for any pigments that might match the description of the brownish streak.
3. Consult references: Use reliable sources such as scientific journals, books, or online databases to find information about pigments in carnations. Cross-reference the information you find with the characteristics of the brownish streak you observed.
4. Chromatography databases: There are online databases and references specifically designed for chromatography analysis, such as the Plant Pigment Database or chromatography handbooks. These resources can help you identify pigments based on their retention factors and other characteristics.
5. Seek expert advice: If you are still having trouble identifying the pigment, it may be helpful to consult with a teacher, lab supervisor, or experienced chromatography researcher who can provide insights and guidance.
Remember, identifying pigments through chromatography can be complex and may require further analysis, so don't hesitate to seek additional resources and expert assistance if needed.