Page 65 - Statistics presented by Dr. Sara Ismail Aborass

9/8/2023

Ex: BaSO4 (analyte) and PbSO4 (impurity)

Elimination: Removal of impurity before
pption

NB: washing and digestion are ineffective

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b)Non- isomorphic inclusion (solid solution
formation)

• When two substances are not completely
isomorphic

Ex: BaSO4(analyte)/K2SO4 (impurity)
Elimination: -Removal of impurity before pption

- Reprecipitation

128

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