DSE Chem revision
Topic 15. Analytical Chemistry
A. Detecting the presence of chemical species
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detecting the presence of calcium, copper, potassium and sodium in substances by the flame test
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application of appropriate tests for detecting the presence of
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molecules: hydrogen, oxygen, chlorine, carbon dioxide, water, ammonia, sulphur dioxide and hydrogen chloride
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cations: aluminium, ammonium, calcium, magnesium, copper(II), iron(II), iron(III) and zinc
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anions: chloride, bromide, iodide, carbonate, hypochlorite and sulphite
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various functional groups in carbon compounds: C=C, -OH, -CHO, >C=O and -COOH
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B. Separation and purification methods
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crystallisation
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distillation / fractional distillation
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liquid-liquid extraction
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paper, column or thin layer chromatography
C. Quantitative methods of analysis
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volumetric analysis
D. Instrumental analytical methods
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basic principles and applications of colorimetry
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identification of functional groups of carbon compounds using IR spectroscopy
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basic principles and applications of mass spectrometry, including simple fragmentation pattern
E. Contribution of analytical chemistry to our society
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analysis of food and drugs
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environmental protection
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chemistry aspects of forensic science
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clinical diagnoses
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