SPIFAN SP Meeting September 17, 2016
References 8-9 are listed in slide 16
• Open ashing • (Alkali) Fusion • Microdiffusion separation • Oxygen combustion • High pressure acid digestion • (Ultrasonic) Extraction/Protein precipitation/Ultracentrigugation • Distillation • Headspace (single-drop micro-extraction) • Derivatization Some procedures are available for measuring total and/or free forms of fluoride in milk products.
September 2016
5
References 8-9 are listed in slide 16
• Electrochemistry:
- Potentiometry (Fluoride Ion Selective Electrode : current method) - Voltametry (Polarographic methods)
• Chromatography:
- Ion Chromatography - Conductivity detection / Post- column reaction with UV/VIS detector (anion current method) - Headspace Gas Chromatography - FID / MS after derivatization - Spectrophotometry (for waters) - Graphite furnace - MAS (most sensitive technique for fluoride) - MIP-AES / ICP-MSMS
• Spectroscopy:
• Titrimetry (Titration against thorium nitrate) column reaction • Sensors
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September 2016
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