the reaction can be confirmed using this technique. 3.1. Dye degradation experiment Total 6 fabric dyes and two laboratory dyes (Congo red and Crystal violet) were used for the study. The λmax of dyes was determined by spectrophotometer (UV Vis- 1800 Shimadzu‚ Jaipan Spectrophotometer) and further the dyes were incubated with Chara sp.‚ Scenedesmus obliquus (S6) and algal extract of Chara extract beads. The optical density of the mixture was measured on 1st day and 5th day of incubation. On the basis
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Cuvets‚ 13 × 100 mm ‚ 1 Sample of consumer sports drink (Gatorade Blue)‚ 10-mL FD&C Blue 1 stock solution‚ 50-mL Distilled Water ‚ 100 mL Spectrophotometer Kimwipes Test tube rack Lenovo Laptop Logger Pro 3.8.7 Software TI-84 Calculator III. PROCEDURE STEP 1. Turn on laptop and open Logger Pro 3.8.7. STEP 2. Turn on spectrophotometer and connect it to laptop‚ warm up for 15 minute. STEP 3. Set up an appropriate data to record measurement and the results of calculations as shown
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This investigation did not institute replication Materials: paper‚ writing utensils‚ capillary tube‚ leaf pigment extract in acetone‚ beakers‚ forceps‚ scissors‚ acetone‚ petroleum ether and acetone solvent‚ chromatography paper‚ wax paper‚ spectrophotometer‚ test tubes Measurements: Absorption spectrum‚ percent transmittance to absorbance Results: (See graph on page 2) Discussion: My hypothesis for this experiment‚ if chlorophyll a
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The spectrophotometer is an essential tool for biologists and chemists in analyzing chemical and biological samples. Gaining familiarity with its operating protocols and understanding what its outputs mean are very important in the development of lab technique for students of cell biology. This experiment will help laboratory students gain experience in using the spectrophotometer. Basic Laws of Light Absorption - For a uniform absorbing medium (solution: solvent and solute molecules that absorb
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indicate hypoglycemia‚ or high blood glucose‚ which indicate hyperglycemia. Introduction II. Introduction In the first part of the experiment we utilized absorbance measurements using a UV-visible light spectrophotometer to determine the concentrations of a substance. A spectrophotometer consist of a monochromator for the selection of wavelength‚ a sample holder referred to as a cuvette‚ a recorder‚ and a light detector called a phototube. We then went on to measure The absorption levels (A)
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A. Define the following: Enriched Media: An enrichment medium contains some important growth factor (vitamin‚ amino acid‚ blood component‚ or carbon source) necessary for the growth of fastidious organisms. Selective Media: Selective media allow for the selection of particular microorganisms that may be present in a mixed culture. Selective media usually contain a component that enhances the growth of the desired organism or inhibits the growth of competing organisms. Differential
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effect of temperature has on the rate of enzyme activity. The way we figured this out was by taking four different temperatures and testing the difference absorbance levels they produced every 20 seconds for about 2 minutes straight using a spectrophotometer. The important part of this experiment was the temperature the enzyme concentration was made at. What we got from the experiment was at lower temperature we got very low numbers for the absorbance‚ which gave us a lower rate for the enzyme reaction
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infringement to the software industry. Piracy losses exceeded $12 billion worldwide in 1999 and topped $59 billion during the past five years. The survey‚ conducted by an independent research firm‚ was commissioned by the Business Software Alliance (BSA) and the Software & Information Industry Association (SIIA). The 1999 software piracy estimates indicate that more than one in every three-business software applications in use during 1999 was pirated. Piracy losses for the US and Canada lead
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ENTERICS EMB‚ SSA‚ BSA [pic] Acronym: T LMI CUP MNL GARI ( TSI‚ LIA‚ MIO‚ Indole‚ Citrate‚ Urease‚ PAD‚ Malonate‚ Lactose‚ Glucose‚ Arabinose‚ Rhamnose‚ Inosite) easy steps to identify: *TSI: A/Ag------ Escherichia coli and Klebsiella pneumoniae A/Ag( yellow both slant and butt with gas: cracks/displacement of the agar) EMB- greenish metallic sheen ------ E. coli EMB- pink mucoid colonies -------- K. pneumoniae
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constructed under the administration of Mr. Aguinaldo G. de los Reyes‚ the school’s principal. 1974 - The school offered a two-year post secondary course‚ the Agri-Technician Curriculum. 1976 - Baccalaureate degree courses like the BS Agriculture (BSA) majors in Crop Science and Animal Science‚ BS Agricultural Education (BSAg. Ed.)‚ and BS Agriculture Homemaking Education (BSAHE) were offered. The Agri-Tech Curriculum became Associate in Agriculture Technology (AAT). 1977 - On September 26‚ 1977
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