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ppt poster.docx - PHOSPHORUS ANALYSIS BY UV-VIS...

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Preparation of phosphorus standardsolution containing 2.00 mg/L phosphorus.Prepare working standards of concentration of0.0,0.200,0.400,0.800 and 1.00 mg phosphorus/L andadd 0,5,10,20 and 25 mL of the standard to the flasks.Preparation of the cola sample bydiluting it in 1 in 20.Determination of phosphorus by the ammonium molybdate method byadding 10 mL of combinedreagent to each of the flasks.Wair for 10 mins for the colour to develop.Measure the optimum wavelength by running a spectrum of any of your strongly colured solutions intherange between 400 and 800 nm.Determine theλ max value and take the individual absorbance readings of the eleven solutions andnote that measurements should be made within 30 minutes of addition of the combined reagent.RESULTS AND DISCUSSIONPHOSPHORUS ANALYSIS BY UV-VISINTRODUCTIONPhosphorus is the eleventh most abundant element on the surface of the earth and is most commonly found as phosphate.

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Term
Fall
Professor
NoProfessor
Tags
Phosphoric acid, PHOSPHORUS ANALYSIS

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