Some interesting sites are listed below. Note that some of these sites go into much more depth than is reasonable for this course. http://en.wikipedia.org/wiki/Chromatography http://ull.chemistry.uakron.edu/analytical/Chromatography/ http://orgchem.colorado.edu/hndbksupport/TLC/TLC.html this is for TLC – similar to paper http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/Chromatography_paper.html http://jchemed.chem.wisc.edu/JCESoft/Programs/CPL/Sample/modules/paprchrom/paprchromdesc
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Title:The Chromatography Process of Expo Markers Abstract:This experiment is to uncover whether or not the Expo Markers are homogeneous or heterogeneous mixtures. The experiment will conduct filter paper being slightly submerged in a container of water and inspected for pigmentation changes. In the experiment the pigments will rise up the filter paper once exposed to the water (solvent). After the experiment‚ it concludes that the mixture is a homogeneous mixture due to the chemical
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Liquid Chromatography Purpose: The purpose of this lab was to separate substances based on their polarity by using liquid chromatography. Data Table: Red Dye Blue Dye Run#1 Run#2 Run#3 Run#1 Run#2 Run#3 Start of Band(mL) 1.50 2.20 1.00 2.70 3.00 2.00 End of Band(mL) 2.70 3.00 2.00 6.40 5.50 6.00 Beaker Eluant Observations 1 H2O White powder 2 5%isopropyl Red powder 3 28%isopropyl Blue powder 4 70%isopropyl Oily residual Calculations: W = Vend – Vstart
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* Biology past papers 2002 1 List an external feature of each of the following types of organism that would identify the Group to which it belongs. type of... Premium * Business Past Paper CXC PAST PAPERS SOCIAL STUDIES Before you begin to write your answers‚ choose OE of the following topics and write it in the space provided. (i) ’The... Premium * May 2008 Past Paper Solution cxcDirect Institute Q5. The diagrams below highlight the main areas of Q5 (see past paper for original). R RS
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The State of the Paper Industry Monitoring the Indicators of Environmental Performance A collaborative report by the Steering Committee of the Environmental Paper Network T H E S TAT E O F T H E PA P E R I N D U S T RY E D I T O R : Jennifer Roberts A U T H O R S : Susan Kinsella‚ Gerard Gleason‚ Victoria Mills‚ Nicole Rycroft‚ Jim Ford‚ Kelly Sheehan‚ Joshua Martin L E A D R E S E A R C H E R : Sarah Ives A D D I T I O N A L R E S E A R C H : Mary Lee Haughwout‚ Aimee Baxendell‚ Aaron Firestone
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· tear newspaper into strips· HINT: always make the last layer of mache with white computer paper or paper towel so that painting is easier. It takes FAR less paint. If you don’t do this‚ consider priming the project with white acrylic paint before you let the kids at it with the poster paint· Make paper mache paste (there are many different options): · OPTION 1: 3/4 white glue to 1/4 water (or if using a good‚ thick glue‚ like elmers you can do 1/2 and 1/2) · OPTION 2: COOK METHOD: 1 part
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was really hard. Grinding does not work for the fiber‚ and only poorly for the quill. Essentially‚ one has to cut into shorter units. And he thought that the fibers are really tough and durable; why is no one using them? In December 1993‚ he made paper from feathers.[1] Chickens and ducks are closely related‚ they are both birds‚ they
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The Invention of Paper Try to imagine a life without paper. Even in this era of emails and digital books‚ paper is all around us. Shopping bags‚ paper money‚ store receipts‚ cereal boxes‚ toilet paper‚ etc.‚ prove we use paper in many ways every day. Islamic people helped spread paper to the west‚ where paper started to be produced more and more and finally‚ printed as we know it today. But‚ Before Muslims spread paper into the west; recently‚ archeologist’s extravagated letters written in Sogdian
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book‚" she gasps‚ "made out of paper." In the future world of this movie‚ all books had been confiscated from homes and libraries and were converted into electronic files. The books could still be read‚ but not held. To me‚ this was more of a horror movie than science fiction! Part of my love of books comes from feeling the paper and hearing the rustle of the pages as they are turned. With the increasing use of the Internet and talks of a "paperless society‚" perhaps paper will someday become a thing
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recycle such as glass‚ paper‚ metal‚ plastic and also electronic items. The most widely used product as a student is papers. At the end of each year‚ students usually will throw their books and notes which can actually be recycled. A good student should know the process of recycling papers in order to contribute in saving the world. Recycling paper starts with the process sorting it by the grades. There are five basic grades which are old corrugated containers‚ mixed papers‚ old newspaper‚ high grade
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