Introduction to
Instrumental Analysis
Analytical chemistry aims to
develop methods and tools for determining the chemical
composition of the substances and the amounts of the components.
Qualitative Analysis; To give information about the
structure of matter, atomic, ionic, molecular properties and functional groups.
Classical methods
Includes gravimetric and volumetric analysis methods.
Chemical substances are used in the analysis of samples in which
simple laboratory materials such as scales, calibrated glass materials, heaters are used and where the analyte (the substance to be
determined) is generally analyzed.
Instrumental Analysis Methods In addition to general laboratory
equipment, various analytical devices are used.
Measurements measured by analytical devices;
A physical property of the substance, or It is a physical size of the response of the substance as a result of stimulation.
Measured Physical Dimensions of Matter
Changes in mass and mass of
material, physical states of matter (melting, boiling), viscosity,
refractivity, current and potential measurements (electrochemical properties), light and radiation (spectroscopy, polarimeter).
Quantitative analysis; determines the amount of any component in the substance.
Chemical analysis
1-Sampling, 2. Method Selection, 3- Separation 4- Measurement, 5-
Evaluation consists of steps.
Analytical methods can be classified as classical or
instrumental methods.
