Analytical Chemistry

Analytical Chemistry in Our Lives

How can the presence of blood be detected by forensic experts?

An ultraviolet light source can be used to detect a blood stain that has been cleaned up. It’s also possible to use a chemical substance like luminol or phenolphthalein to detect the presence of hemoglobin, revealing its presence even after the visible stain has been washed away.


This is a web preview of the "The Handy Chemistry Answer Book" app. Many features only work on your mobile device. If you like what you see, we hope you will consider buying. Get the App