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Guidance on how to prepare chromatography solvents and locating agents. 
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This practical procedure outlines simple method for carrying out thin layer chromatography (TLC) to analyse lipsticks.
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Amino acids can be identified and separated using paper chromatography, a cheaper alternative to using TLC. The amino acids need to be stained with ninhydrin to reveal the spots after the run.
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This practical procedure outlines simple method for carrying out thin layer chromatography (TLC) to analyse biro inks.
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Guidance on general topics including chromatography and electrophoresis, cryogenics, soldering and electrical connections, electrolysis, glass working, glues and adhesives, photography, using pupils a.. more
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This practical procedure outlines a simple, inexpensive and successful method for carrying out paper chromatography. The activity demonstrate how chromatography can be used to analyse biro inks.
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It is becoming increasingly difficult to determine the composition of food dyes in an unknown mixture, because formulations have been altered over time, and, as a consequence, the results never match .. more
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Thin layer chromatography is a quick and effective method of separating pigments within leaves. The pigments run clearly on the chromatogram with little outward spread, allowing Rf values to be calcul.. more
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This edition includes advice on using phenolphthalein, and notes on CLEAPSS YouTube videos, a radioactivity update, ventilation in chemical stores, hepatitis, laboratory water supplies, a chromatograp.. more
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A summary of queries to CLEAPSS concerning suggested practical activities which either did not work or were unduly hazardous. Ways around these problems are either included within this document or in .. more
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