Key Features:
1. Acid-Modified PEG Phase
Composition: Nitroterephthalic acid modified polyethylene glycol.
Polarity: Highly polar. Provides unique selectivity for acidic and oxygenated compounds.
2. Superior Water & Acid Tolerance
Unlike standard PEG (Wax) columns that degrade quickly in acidic environments, the CBX-FFAP is chemically bonded and cross-linked. It can directly inject aqueous samples and free acids (down to pH < 1) without phase stripping or column damage.
3. Excellent Peak Symmetry
The active deactivation process combined with the acid-modified phase ensures sharp, symmetric peaks for carboxylic acids, completely eliminating the severe tailing seen on conventional columns.
4. Solvent Rinseable
The robust cross-linking technology allows the column to be rinsed with specific solvents to remove non-volatile residues, extending column life.
Technical Specifications:
| Item | Specification |
| Stationary Phase | Acid-Modified Polyethylene Glycol (FFAP) |
| Polarity | Highly Polar |
| Film Thickness | 0.10 µm - 0.50 µm (Standard: 0.25 µm) |
| Internal Diameter | 0.18 mm, 0.25 mm, 0.32 mm, 0.53 mm |
| Length | 15 m - 60 m (Standard: 30 m) |
| Max Temperature | 250°C / 260°C |
| Min Temperature | 35°C |
| Equivalent Models | Agilent DB-FFAP, Supelco Nukol, Restek Stabilwax-DA |
Application:
Food & Beverage: Analysis of volatile fatty acids (C2-C24) in dairy, vinegar, and alcoholic beverages (e.g., Baijiu, Beer).
Environmental: Organic acids in wastewater and soil leachates.
Flavor & Fragrance: Aldehydes, ketones, and alcohols in essential oils and flavors.
Chemical Industry: Phenols, cresols, and solvent mixtures.
