Anions with chemical suppression

• standard anions
• F^-, acetate, formate, Cl^-
• SO₃^2-, SO₄^2-
• simple matrices
• ClO₂^-, ClO₃^-, ClO₄^-, BrO₃^-
• special separating problems

• standard anions
• F^-, acetate, formate, Cl^-
• SO₃^2-, SO₄^2-
• simple matrices
• ClO₂^-, ClO₃^-, ClO₄^-, BrO₃^-
• special separating problems
• biological samples

• High-speed chromatography

• Perchlorate in difficult matrices, EPA 314
• Very high ionic strength

• large concentration differences
• high ionic strength
• ClO₂^-, ClO₃^-, ClO₄^-, BrO₃^-

IC Anion Column
Metrosep A Supp 1 – 250
(6.1005.300)

• SCN^-, SO₃^2-, SO₄^2-, S₂O₃^2-
• Polyphosphates

• Standard anions
• Difficult matrices
• Critical samples
• I^-

• Standard anions
• F^-, Cl^-, Br^-, I^-
• ClO₂^-, ClO₃^-, ClO₄^-, BrO₃^-
• BrO3^- at high ionic strength
• Cr⁶⁺ (CrO₄^2-)
• I^- (not with 250 mm)
• Method development
• Universal use
• Difficult matrices
• Difficult separation problems
• Rapid separation (with 50 and 100 mm)
• PO₄^3- in soft drinks (with 100 mm)
• IC-MS coupling

• Standard anions
• Oxohalides, EPA 300
• Isocratic separation of glycolate and acetate
• Difficult separations
• Bayer liquors

• Anions in salt solution

• PO₄^3- in soft drinks with cyclamate
• Standard anions (no F^-)
• SCN^-, SO₃^2-, SO₄^2-, S₂O₃^2-
• Separation of SO₃^2- and SO₄^2-
• Aerosols with PILS / MARGA (75 mm)
• Air analysis
• IC-MS coupling
• Aggressive matrices

• Standard anions
• Cl^-, NO₃^-, SO₄^2- in drinking water
• Simple separation problems
• Rapid separation
• Method development

• Standard anions
• Simple separation problems
• Rapid separation
• Citrate/phosphate
• Simple matrix
• IC/MS coupling

• Standard anions
• Drinking water analysis
• F^-; glycolate
• Phosphate species
• Difficult separation problems
• Complex matrix
• Method development
• IC/MS coupling

• Standard anions
• Universal applications
• Monobasic organic acids
• Dibasic organic acids in the presencer of SO₄^2-
• Nitrogen species
• Complex separation problems
• Difficult matrix
• IC/MS coupling

• Standard anions
• Universal applications
• Oligo- and polysaccharides
• Cl^-; SO₄^2- in electroplating baths
• Quality control of ultrapure chemicals (e.g. concentrated acids)
• Complex separation problems
• Difficult matrixIC/MS coupling

• Short retention times
• No Cl^-

• BrO₃^- at high ionic strength