Analytical Chemistry

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To define what analytical chemistry is; To identify the difference between qualitative and quantitative analysis; To differentiate and familiarize among gravimetric, volumetric and instrumental methods of analysis; To outline the steps involved in a typical quantitative analysis; Participate in class discussion; Appreciate the broad areas in which Analytical Chemistry is commonly involved.

What is Analytical Chemistry? •

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What is Analytical Chemistry?

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Classification

A qualitative method yields information about the identity of atomic or molecular species or the functional groups in the sample.

A quantitative method in contrast, provides numerical information as to the relative amount of one or more of these components.

Areas in which Analytical Chemistry is commonly involved

Category of Analytical Methods

Methods of Analysis  Method in which weight of substance is measured.

Methods of Analysis  Refers to measurement of a volume.

Methods of Analysis  Methods are based on measurement of some physical and chemical property, through the use of instruments.

An analysis involves several steps and operations which depend on: •

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The analyst should be involved in every step.

Standards bodies

hierarchy

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 ©Gary Christian, Analytical Chemistry,

6th Ed. (Wiley)

Method in testing Chocolate:

 ©Gary Christian, Analytical Chemistry,

6th Ed. (Wiley)

Calculate the result and report