iIsolation of Chlorophylls and Beta Carotene from Plant Leaves Wang Haina A0133901R 1. Aim 1. To isolate chlorophyll and beta carotene from plant leaves using column chromatography. 2. To qualitatively characterise the pigments with UV-vis spectroscopy and TLC. 2. Results and discussion Isolation of beta carotene and chlorophylls by column chromatography Upon the loading of S1 (the extract of the plant leaves in hexane)‚ a yellow band appeared at the top part of the silica column immediately
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equality is slowly taking importance‚ men getting paternity leave does not seem like an alien idea. Maternity leaves are never objectionable however when it comes to paternity leaves it becomes one of the most controversial topics of all times. Reasons for maternity leaves are well justified as the women have to carry the child with them as part of their body until the child is born but there are justified reasons for the paternity leave as well. Men have just as much right‚ need and obligation to
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A Book Report on How Soon Can I Leave? By Ruby‚Zhang Recently I’ve read a story entitled How soon can I leave? To be honest‚ the plot itself is not an interesting and gripping one. However‚ the theme hidden behind the story does make me think for a while. Actually it is a story about two ladies who lived together. Miss Bartlett‚ was shy or somewhat retiring‚ had run a small business down the hill in the damp cottage while Miss Roscommon‚ the older‚ was a capable woman particularly
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article reported that because of the significant after-tax operating loss‚ consumers’ performances shift and high production cost‚ the Productivity Commission that GM in Detroit decided to close operations in Australia. Why Holden will shutdown and leave out of the country? What have been done in order to save Holden? What about the other manufacturer (TOYOTA) in Australia? This analysis will discuss the past and current situation of Holden in Australia vehicle market. Furthermore‚ whether are the
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internet and many other media platforms. Way before the 19th century‚ many human jobs were manual intensive and they slowly have been taken over by automation. This article “Better than Human: Why Robots Will-and Must-Take Our Job” is written by Kevin Kelly‚ has made its first appearance on the Wired website in 2012. Kelly’s article speaks about the future in terms of human jobs‚ where he reminds us that it is just a matter of time before machines will be able to perform not only manual jobs but knowledge
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Talamban National High School Talamban‚ Cebu City Production of Insecticide out of Chili Pepper (Capsicum annuum) leaves extracts and Orange (Citrus sinensis) Peelings extracts Bonute‚ Darby A. Nelmida‚ Shaira Mae B. Solamo‚ Patricia C. IV-CARIEGO July 18‚ 2013 Chapter 1 The Problem and its Background Introduction Over the years‚ insects greatly contribute much with ecological balance in nature yet it also dramatically causes economic problems like the loss of production the
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Dried Papaya Leaves as Organic Mulch for Tomato Plants Abstract Mulching in agricultural provides a safe yet equally profitable method of enriching and fertilizing the soil planted with crops. Most often-used mulches are of organic composition‚ such as dry leaves and barks. Unlike synthetic fertilizers and herbicides‚ these organic mulches pose no or little damage to the soil and crops. In this study‚ the effectiveness of dried papaya leaves as organic mulch for tomato was tested. Papaya mulches
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The Family and Medical Leave Act provides employees the opportunity to take time to care for their family. Though the Act was signed into action in 1993‚ there has been a long history of unfair labor practices concerning family and/or medical leave since the early 1900s. Although not common knowledge‚ family medical leave has been an issue in this country for the past 100 years. The most significant recent development regarding this issue is The Family Medical Leave Act (FMLA). Because there
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THE FEASIBILITY OF DRIED TOBACCO LEAVES AS A PESTICIDE AGAINST COCKROACHESChapter I Abstract Tobacco plants nowadays are very much needed and demanded by most of our dear consumers especially farmer and now that we are facing an intense economic crisis‚ and with that mere situation‚ the primary necessities which are very much needed by man in order for him to survive his daily living are now of higher prices compared to the last couple of years and that includes the demanding need and use of the
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details provided by the content and it is separated straight into a pair of portions. The first segment looks at a number of causes of the down sides at the moment facing this Kelly’s business. The next segment offers suggestions that could allow Kelly to be able to address the difficulties she is facing so as to make her business even better. Reasons why Kelly’s business is doing well Kelly’s passion as well as skill for producing dependably refreshing‚ yummy lunchtime fare well-liked amid a company
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