- Liquid chromatography
- Gas chromatography
- Flame coloration test
- Nuclear magnetic resonance spectroscopy
- Spectrophotometry
- Loss on ignition
- Refractive index method
- Oxygen flask combustion
- Karl Fischer method
- Optical rotation
- Electrometric titration
- Specific gravity determination
- Determination of oil and fat
- Readily carbonizable substances test
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- Chloride limit test
- Loss on drying
- Congealing point determination
- Residue on ignition
- Atomic absorption spectrophotometry
- Heavy metals limit test
- Infrared absorption spectrometry
- pH measurement
- Arsenic limit test
- Melting point
- Sulfate limit test
- Endotoxin test
- Ammonium limit test
- Others
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