This is two-day- experiment. Do not start this experiment unless you have two free lab days to complete it.*** Techniques Checklist: Picking the correct eluent Adsorbtion of a crude mixture onto silica gel Separating complex mixtures using gradient elution Pre-lab Discussion: Suggest limited list of eluent solvent systems Discuss sample adsorption and gradient elution strategies

Techniques Checklist m manifold use Manipulations under an inert atmosphere Solvent de-gassing Pre-Lab Discussion and required reading: Air sensitive techniques

Pre-Reading Activities Text New Word Reading TextA: Language Points Newspaper Reading Exercise Check-up .Assignment

Pre-reading Activities Structure of the Passage Intensive Study Expressions Patterns After-reading Activities Translation Writingo

1. Introduction 2. Pre-reading questions 3. Writing skills 4. Language points 5. Discussion 6. Homework

Pre-reading Information 1. Boxing Sport of fighting with fists, also called pugilism and prizefighting 2. Early History Depicted on the walls of tombs at Beni Hasan in Egypt, dating from about 2000 te 1500 B.C., boxing is one of the oldest

Pre-Reading Activities Text & New Word Reading Text A: Language Points Newspaper Reading Exercise Check-up Assignment

Watch the video and discuss the given topics. Questions & Answers Listen to a passage and answer some questions. Listen to a passage and fill in the missing words. Compound Dictation Acquaint yourself with some relevant information. Background Information

Scotland Yard This is the headquarters of the London Metropolitan Police. The term is often used, popularly, to refer to one branch, the Criminal Investigation Department (CID). Named after a short street in London, the site of a palace used in the 12th century as a residence of visiting Scottish kings

Obtain hands on experience with CFX-4 Familiarity with the software and documentation. Pre-Processing - Concept of geometry and multi-block- creation Boundary condition specification