FSC239Y5 Lecture Notes - Lecture 3: Microfluidics, Gunshot Residue, Electromagnetic Spectrum
Document Summary
Use chromatography to extract and find toxins in stomach. Ex: the case of person who was murdered thousands of years before. Looking for very small amounts of toxins this techniques separates many compounds. High resolution separation a typical gas chromatography. Microfluidics caliper technologies (agilent) liquid way of separating compounds. Apply voltage and the paper goes flying and you get dragged along. Mass spectrometry: concept of fragmentation induced by electron bombardment. Separating on the basis of mass and charges. Key feature: the resonance condition; matching energy of photon to a process. Electromagnetic spectrum make use, different range of energies. Firing photons and asking how you are going to respond. Only responds when the energy you put in matches an energy inside the spectrum. X-ray fluorescence: so high energy it goes right through you. It doesn"t gets through all the objectives similarly with same energy.
