CLEAPSS Supporting practical science and technology
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Small scale 'disappearing cross' methods for investigating the effect of concentration on the rate of the sodium thiosulfate - acid reaction. Includes use of an alkaline 'stop-bath' to neutralise used.. more
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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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Various monitoring techniques can be used to investigate how different factors affect the rates of reactions. The thiosulfate-acid ‘disappearing cross’ activity is an example of a clock reaction with .. more
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A simple and reliable protease practical activity.
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An alternative practical using lipase.
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The common negative ions, carbonate (CO32-), sulfate(VI) (SO42-) and the halides (Cl–, Br– and I–) can be simply tested for in test tube reactions. The method described here uses a more dilute ammo.. more
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A straightforward and commonly-used practical on enzyme activity.
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A straightforward and commonly-used practical activity
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Outlines how to prepare for pouring, pouring and storing agar plates, and making slopes.
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Provides detailed instructions for a simple practical which illustrates some of the working of the gut. Uses sucrose as the starting substrate and DNS reagent or glucose testing strips to identify the.. more
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Showing results 1 to 10 of 303
1 234