FIVS 123 Lecture Notes - Lecture 4: Capillary Electrophoresis, Mass Spectrometry, Aluminium Oxide

• School: Texas A&M University
• Department: Forensic & Inv Science
• Course: FIVS 123
• Professor: Kevin M.Heinz

Document Summary

Sometimes the entire mixture is the evidence, at other times you may need to spate the mixture to really get the evidence that you need. Solid mixture: could include manually searching for and picking out pieces of evidence or using sieves to separate a mixture into its various components by size. Liquid/liquid extraction: when you have a large amount of materiel present and when you know what other substances are included in the mixture. Requires knowledge about the properties of the solid mixture you are attempting to separate. Polarity and ph are important properties that will guide how you can use liquid to extract your target solid. When only small amounts of materials are present. Analyte of a mixture is analyzed, put through two phases. Stationary phase the immobile filing or coating that lines the column and which interacts with the analyte as it is carried through the column.