There are two types of errors and deviations are found in analysis:
1. Determinate or Systematic Error
2. Indeterminate or Random Error
The errors caused by the defect in the analytical method or by the improper functioning of instrument are called ‘Systematic Error’. For example: Use of improper cleaned or rinsed glasswares, improper prepared indicators, impurity in concentrations etc.
There is some uncertainty found in every physical measurement. The errors that these variations indicate are called ‘Random Error’. Random Errors are unavoidable and could be positive or negative. For a more exact measurement average of several replicate measurements is taken.
Definition of Chemistry Next Post:
Atomic Number, Mass Number, Molecular Mass, Formula Mass