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This document contains:An outline of colorimetryThe principles of the CLEAPSS colorimeterUsing a CLEAPSS colorimeter which has been set upSetting up the CLEAPSS colorimeterproducing a calibration curv.. more
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Instructions to make a novel and inexpensive general colorimeter using LEDs. We would welcome feedback from users.
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To help students understand how cell membrane integrity is affected by the environment surrounding the cell. Beetroot membranes are a good model for investigating this because the pigments that diffus.. more
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Instructions on how to make an Arduino millivoltmeter for use with CLEAPSS colorimeter or other low-voltage applications.  The accompanying zip files GL257a contains the Arduino code & GL257b soft.. more
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Directors update on the new A'Levels, CLEAPSS at the ASE Conference, yet more on taps and water fittings, the disposal of sharps, CLEAPSS suppliers workshop, CLEAPSS makes it guides, the new CLP Hazca.. more
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Make you own colorimeter, using some Lego and LED's.
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This provides an opportunity to develop and practice colorimetric techniques, and to plot a calibration curve. 
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A more straight forward activity than that done traditionally. Includes all practical instructions and some brief notes on DCPIP.
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Gives guidance on general fieldwork including specific measurements and techniques. Detailed guidance is included on measuring substances in the soil, water and air, and electronic measurements such a.. more
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Members only resource Click to download Document.
Bumper 12 page edition; directors update, CLEAPSS 12 Day technician training programme, Salters Technician Awards 2016, Demo day, use of sharps, dodgy websites, Unilab power supplies, who to call in a.. more
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Showing results 1 to 10 of 40
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