PAPER AND THIN-LAYER CHROMATOGRAPHY Lab 47 Michael Stravino‚ CHM 2211L‚ June 3‚ 2012 Abstract Thin-Layer Chromatography and Paper Chromatography can be used to identify identical compounds‚ unknown compounds‚ the number of components in a mixture‚ as well as other important uses not explored in this laboratory. This experiment explores these techniques to identify an unknown amino acid by TLC and analyze food colors using paper chromatography. By using 2.0 mL of dimethoxyethane and 18 mL of
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hasn’t been long since our Prime Minister announced mobile number portability across the country. The main question still remains‚ why should someone change to a different operator? One (big) reason is that before MNP was actually announced‚ switching to another operator involved a procedure of submitting documents and in the end when you finally got your number‚ you had to inform family‚ friends and colleagues about the change. All that will now change with the introduction of MNP. Here is a
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Quality of e-Learning: An Analysis Based on e-Learners’ Perception of e-Learning Rengasamy Elango1‚ Vijaya Kumar Gudep2‚ and M. Selvam3 1 Majan University College‚ Sultanate of Oman 2 Skyline College‚ Sharjah‚ United Arab Emirates 3 Alagappa University‚ Tamil Nadu‚ India elango@majancollege.edu.om vkumar@skylinecollege.info Abstract: e-Learning‚ of late‚ has been witnessing an unprecedented expansion as an opportunity for higher education. This expanding alternative mode calls for ensuring
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1.0 What is E-Governance? eGovernance is about redefining the vision and scope of the entire gamut of relationships between citizens and government. By doing so‚ it attempts to rework the socio-political setting of our civilization. E-Government is the use of IT & communication technologies‚ to deliver public services in a much more convenient‚ customer-oriented‚ cost-effective and altogether different and better way. But it has to be noted that it is not all about technology‚ but to use it as
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Linda Gold From: Jordan Hooten Subject: E-mail Issues in the Workplace Date: April 4‚ 2012 Executive Summary: In today’s society it is a guarantee that no matter where or who you work for‚ you will be using a computer and doing tons of electronic correspondence through e-mail. Few people know that e-mail has been around for almost a hundred years. “If ’e-mail ’ is loosely defined as ’messages transmitted electronically ’‚ then the first ’e-mail messages ’ would have started in the last
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is limited to 200 ppm as stated in Philippine Regulation on Food Additives. Some regulatory agencies require lower values. * It forms carcinogenic nitrosamines in meats when exposed to high temperatures. However‚ antioxidants like vitamin C and E may inhibit nitrosamine formation. Studies have linked it to various types of cancer. * It has been linked to the triggering migraines in migraine prone individuals. * Frequent ingestion of cured meats may cause COPD‚ Chronic obstructive pulmonary
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What is E-Book Reader? Compare any three E-book Reader. 1. Introduction: Humans always love reading; in fact‚ it continues to be a favorite pastime around the globe. Aside from simply being relaxing‚ reading also contributes towards sharing of information and knowledge between people from all around the world. Luckily‚ technology has caught up with reading enthusiasts in the form of electronic readers. Reading actual paperback books still has its own charm‚ but now more and more people
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DATA PROVENANCE IN E-LEARNING ENVIRONMENT M.S.A. Ahsan 100022U A. Burusothman 100063U S. Paraneetharan 100369M B. Sanjith 100484K K. Sureshkumar 100527X 1. Introduction We live in an information age‚ where the volume of data processed by humans and organizations increases exponentially by grid middleware and availability of huge storage capacity. So‚ Data management comprises all the disciplines related to managing data as a valuable resource.
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Electronic contracts & the Indian law This document is an extract from the book Ecommerce - Legal Issues authored by Rohas Nagpal. This book is available as courseware for the Diploma in Cyber Law and PG Program in Cyber Law conducted by Asian School of Cyber Laws www.asianlaws.org Ecommerce - Legal Issues 4. Electronic Contracts Contracts have become so common in daily life that most of the time we do not even realize that we have entered
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Random number tables have been used in statistics for tasks such as selected random samples. This was much more effective than manually selecting the random samples (with dice‚ cards‚ etc.). Nowadays‚ tables of random numbers have been replaced by computational random number generators. Tables of random numbers have the desired properties no matter how chosen from the table: by row‚ column‚ diagonal or irregularly. The first such table was published by a student of Karl Pearson’s in 1927‚ and
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