Determination of Amino Acids (Watrex)

WI08115 – Determination of Free Amino Acids

• Determination of free amino acids in submitted samples by ion chromatography.
• Price: 1,500 CZK excl. VAT

WI08116 – Determination of Amino Acids in Hydrolysates

• Determination of amino acids in submitted samples by ion chromatography.
• Price: 1,300 CZK excl. VAT

WI08121 – Determination of Free Amino Acids with High Detection Sensitivity (AQC)

• Performed by pre-column AQC derivatization with fluorescence detection using RP-HPLC.
• Price: 1,800 CZK excl. VAT

10% discount when submitting 10 or more samples simultaneously.

Analysis Conditions

• HPLC Column: WATREX 250 × 4 mm Amino Acid-AQC 5 µm with guard column 20 × 4 mm
• Eluent A: 0.1 M acetate buffer pH 5.0 (adjusted with H₃PO₄)
• Eluent B: Acetonitrile–water (60:40)
• Flow rate: 2 mL/min
• Temperature: 37 °C
• Gradient: 0 min 5%B; 11.5 min 16%B; 11.75 min 25%B; 15 min 30%B; 17.5 min 35%B; 21 min 50%B; 22 min 100%B; 29 min 100%B; 30 min 5%B; 37 min 5%B
• Pressure: 20–24 MPa

Watrex: HPLC separation of amino acids AQC – AA standard

Services – Laboratory

The Watrex Analytical Laboratory will be happy to perform any of our standard analyses, custom analyses, or assist you with method development.

We specialize primarily in liquid chromatography techniques and are ready to meet a wide range of requirements—from method development and optimization, through validation and verification of external methods, to training and troubleshooting.

Our laboratory also manufactures and packs its own chromatographic columns and guard columns for basic HPLC modes (reversed phase, normal phase, ion chromatography, and ion exclusion chromatography).

Watrex: Analytical Laboratory