Tests for Impurities (APIs)

Organic Impurities

• Dimethylaniline
• Nitrogen Determination
• Ordinary Impurities
• Chromatography
• Capillary Electrophoresis
• Optical Rotation
• Polarography
• Spectrometry and Light-Scattering
• Impurities in Official Articles

Inorganic Impurities

• Aluminum
• Arsenic
• Chloride and Sulfate
• Heavy Metals
• Iron
• Lead
• Mercury
• Residue on Ignition
• Selenium
• Oxygen Flask Combustion
• Plasma Spectrochemistry
• Loss on Ignition

Residual Solvents

• Organic Volatile Impurities
• Chromatography
• Loss on Drying

Tests for Impurities (Excipients)

Organic Impurities

• 4-Epianhydrotetracyclines
• Nitrogen Determination
• Ordinary Impurities
• Chromatography
• Capillary Electrophoresis
• Optical Rotation
• Polarography
• Spectrometry and Light-Scattering
• Impurities in Official Articles

Inorganic Impurities    

• Aluminum
• Arsenic
• Chloride and Sulfate
• Heavy Metals
• Iron
• Lead
• Mercury
• Residue on Ignition
• Selenium
• Oxygen Flask Combustion
• Plasma Spectrochemistry
• Loss on Ignition

Residual Solvents    

• Organic Volatile Impurities
• Chromatography
• Loss on Drying.