Slide 1 Introduction to Arson Analysis Arson Analysis by Gas Chromatography/Mass Spectrometry Denver Police Crime Laboratory William D. McDougall II Forensic Analyst (Retired)…

Slide 1 Chromatography Learning objective: To be able to describe the method of chromatography and its applications Slide 2 Chromatography Chromatography is used to separate…

Slide 1 Standard Methods for the Examination of Water and Wastewater, 21 st Ed. (APHA AWWA 2005) Slide 2 Gravimetric Analysis Sulfate precipitation SO 4 2- + BaCl 2 ->…

Slide 1 Food Analysis Lecture 19 (4/5/2005) Basic Principles of Chromatography (2) Qingrong Huang Department of Food Science Read Material: Chapter 27, page 437 Final Exam:…

Slide 1 Slide 2 What is Chromatography? Chromatography is a technique for separating mixtures into their components in order to analyze, identify, purify, and/or quantify…

Slide 1 Chromatography and Instrumentation Slide 2 Invented by a Russian Botanist Mikhail Tswett in 1903 He used chromatography to separate the colour pigments in plants…

Slide 1 Simple separation VS Chromatographic separation Principle of simple separation (exp partitioning between phases): - The separation occurs only one direction - Increase…

Slide 1 Separation of Mixtures Slide 2 Mixtures, both homogeneous and heterogeneous, can be separated by physical changes. Slide 3 Techniques used for separating mixtures…

Slide 1 Slide 2 Slide 3 Slide 4 What is Chromatography? Derived from the Greek word Chroma meaning colour, chromatography provides a way to identify unknown compounds and…

Slide 1 Slide 2 Slide 3 Slide 4 Brief History of Chromatography 1903 – Tswett, a Russian botanist coined the term chromatography. He passed plant tissue extracts through…