Essays Tagged: "Chromatography"

Fractional Distillation and Gas Chromatography

CHEM 3152-003Experiment 2: Fractional Distillation and Gas ChromatographyIntroduction:The purpose of this experiment was to separate a mixture of ethyl acetate ... ) and toluene by using the method of fractional distillation and to analyze the fractions using gas chromatography (GC).ethyl acetate tolueneDistillation is a method known as separating or purifying a ... s only one cycle of the vaporization/condensation.Another technique used for this experiment is gas chromatography (GC). GC is the separation of compounds between a stationary and a mobile phase. GC c ...

(8 pages) 103 0 3.5 Jun/2002

Subjects: Science Essays > Chemistry

Acetylation of Ferrocene

gs. In order to determine how well this process had worked we employed: IR spectra analysis, column chromatography, and a little TLC. This experiment is relevant in today's highly industrialized world ... acetylferrocene, some unreacted ferrocene reactant, and acetic acid as well. We will use thin layer chromatography (TLC), column chromatography (CG), and IR spectra analysis in order to determine the ...

(7 pages) 68 0 4.2 Oct/1996

Subjects: Science Essays > Chemistry

Contents of different liquors

iels Whiskey, Smirnoff Vodka, Captain Morgan's Rum, and Glenfiddich Scottish Whiskey. Capillary gas chromatography is a useful technique for measuring such differences in the components of these liquo ... f any methanol, which is toxic in high quantities, was at all present.Thus the use of capillary gas chromatography was quite successful in the qualitative determination of various organic compounds in ...

(4 pages) 48 0 3.7 Dec/2003

Subjects: Science Essays > Chemistry

A lab about Chromotography an Chlorophyll

Biology: Chromatography and Chlorophyll AnalysisQuestions and Observations:1.2 How many different color bands ... ion why leaves of certain types of trees change colors during fall.8.Explain how the process called chromatography works. How did it separate the different pigments found in the leaves?

(2 pages) 44 0 1.0 Jan/2004

Subjects: Science Essays > Biology > Plant Biology

Gas Chromatography essay

Gas ChromatographyGas Chromatography is simply the separating of volatile organic compounds. It involves ... It involves a sample being vaporized and injected onto the head of the chromatographic column. Gas chromatography is used to do many things in today's scientific life. It is used in drunk-driving bre ... sed in removing important evidence from crime scenes. Here is a model of a simple gas chromatograph.Chromatography in general (meaning gas, liquid and any other type of chromatography) separates chemi ...

(2 pages) 41 0 5.0 Apr/2004

Subjects: Science Essays


to extract plant leaf pigments and determining them by using the Rf values obtained from the paper chromatography technique. The hypothesis of the experiment was that all of the five listed pigments ... r, glass petri dish, stapler, sand, spatula, pipette, capillary tube, Whatman filter paper, a 50 ml chromatography solvent, and goggles (to be worn at all times). The steps to performing the experimen ...

(2 pages) 44 0 3.0 May/2004

Subjects: Science Essays > Biology > Plant Biology

Investigation into the Use of Short-Column Reversed-Phase LC in the Determination of log P Values

ues that are fast and reliable and combine the separation and analysis steps in a single operation. Chromatography is the most widely used technique for the analysis of non-inorganic mixtures. Gas chr ... sis of non-inorganic mixtures. Gas chromatography (where the sample must be volatilized) and liquid chromatography (where the sample can be determined in the liquid state) are the most common methods ...

(6 pages) 17 0 0.0 Jun/2005

Subjects: Science Essays > Chemistry

Investigation into the Use of Short-Column Reversed-Phase LC in the Determination of log P Values 2.

AimTo illustrate how gas chromatography (GC) may be used for the identification and quantification of individual constituents ... fication and quantification of individual constituents of a complex natural product.IntroductionGas chromatography (GC) separates mixtures into their individual components and is particularly useful f ...

(6 pages) 26 1 4.2 Jun/2005

Subjects: Science Essays > Chemistry

A Thorough Description of Chromatography

e more techniques aside from the aforementioned processes. This reporting will probe deeper in one: Chromatography. The report has the ff. objectives:- To let people know about the process of Chromato ... s the ff. objectives:- To let people know about the process of Chromatography- To demonstrate how a Chromatography Experiment is done and;- To promote Chromatography as a good and safe experimental te ...

(10 pages) 53 0 3.0 Oct/2006

Subjects: Science Essays > Chemistry


Purpose:In this lab experiment the mixtures of organic compounds are separated using liquid chromatography. TLC separation takes pace on a thin layer of solid stationary phase spread on a soli ... cmNorbixin0.0 cm0.0 cm0.0 cm.06 cm.42 cmAnnatto.28 cm1.0 cm1.0 cm1.0 cm1.0 cmDiscussion:Thin layer chromatography is one of the most versatile and rapid separation techniques available. In TLC the se ...

(4 pages) 33 0 4.8 Feb/2007

Subjects: Science Essays > Chemistry

Tim The Tool

r drop; this was repeated three times. After this was completed we placed the cellulose strips in a chromatography tube with .5 cm of solvent mixture with the application point closest to the mixture. ...

(2 pages) 1366 0 0.0 Feb/2008

Subjects: Science Essays > Chemistry

Science Sumeries Chaper 1-6 (Aus,y R12)

Atomic Absorption Most metal ions and Colorimetry some simple anions UV-Visible Colored substances Chromatography Absorption onto a stationary An enormous range Paper phase and solubility in a mobile ... metals get excited even by the hottest laboratory flame. Mainly Group 1 and Group 2 metals are used CHROMATOGRAPHY Mainly used for Organic compounds.All methods of Chromatography have A Stationary Pha ...

(12 pages) 23 0 0.0 Feb/2008

Subjects: Science Essays > Chemistry

Importance of Chemical Analysis in day to day life

he analytical balance, gas manometer, burette, and visual inspection of color change. Gas and paper chromatography are important modern methods. Physical techniques such as use of the mass spectromete ... o (found from chemical equation), the unknown concentration of the other solution can be calculated.Chromatography:Column chromatography uses a wide range of adsorbent solids, including alumina and si ...

(6 pages) 33 0 0.0 Feb/2008

Subjects: Science Essays > Chemistry

Proteomics Techniques Overview

lways to reduce the amount of samples in the protein and this can be achieved by techniques such as chromatography or other precipitation techniques. More recently the very same 1D gel technique has b ... ivity and scope, fractionation methods are used to yield better results[21, 22].Moving from gels to chromatography a powerful technique in protein separation. High pressure liquid chromatography (HPLC ...

(13 pages) 19 0 0.0 Sep/2008

Subjects: Science Essays > Biotechnology

Lab report for chromatography,international baccalaureate programme

CHROMATOGRAPHYTOPIC : 7.2RESEARCH QUESTION:What is chromatography?How many pigments are there in a p ... hyll b is greater than chlorophyll a. Since it is lighter, chlorophyll b can cause more rise of the chromatography solvent in the microscopic spaces between the fibres of the chromatographic strip. So ... he respective coloured band for each pigment can rise higher.Two physical phenomena that make paper chromatography possible are the capillarity and the solubilityThe other uses for paper chromatograph ...

(2 pages) 15 0 0.0 Nov/2008

Subjects: Science Essays > Biology

Gas Chromatography to determine contents

IntroductionChromatography is a commonly used process used to separate compounds based on their different intera ... endent on the degree, strength, and type of interaction. Hence, the compounds will be separated.Gas chromatography, or gas-liquid chromagraphy which is used in this experiment, consists of two phases. ... s of a few alcohols. The sample (1 uL) was extracted and injected into the vaporization chamber.Gas chromatographyThe temperature was 200oC with split ratio of 1/50. After being injcted into the chamb ...

(2 pages) 444 0 3.7 Nov/2008

Subjects: Science Essays > Chemistry

Distillation of Mixtures Formal Report

split up into three parts: separating cyclohexane and toluene through distillation, performing gas chromatography on the substances that were distilled, and separating a salt-water mixture through di ... any temperature. In this lab, after doing the simple distillation we will test our results with Gas Chromatography.Gas Chromatography allows separations of organic compounds that can be analyzed. A co ...

(8 pages) 13 0 0.0 Apr/2009

Subjects: Science Essays > Chemistry

chlorophyll lab report

eriment was to isolate ß-carotene, chlorophyll-A, and chlorophyll-B from spinach using column chromatography. Spinach was dehydrated using ethanol, and the pigments were extracted with dichlorom ... n. In this experiment, chlorophyll and ß-carotene were isolated using the technique of column chromatography.Column chromatography is a method used to separate and purify components in a mixture ...

(5 pages) 3 0 0.0 Nov/2014

Subjects: Science Essays

Organic lab 3

uct. (BP 41 C, 56 C, and 73 C)Once the acid catalyzed reaction is carried out, the technique of gas chromatography will be used to analyze the products that were formed. The specific gas chromatograph ... as it reaches 80 C release the collection flask.7. Cork and save for next week.B. Week 2 - Run Gas Chromatography1. If the product was not clear, filter it to see it becomes more clear.2. Hand the pr ...

(3 pages) 2 0 0.0 Dec/2014

Subjects: Science Essays > Chemistry