We offer different methods for determination of amino acids as contaminants. If the customer doesn’t order explicitly another method, we will analyze all products using the most reliable GC-MS method (A785) for all products.

• Information about choice of method download pdf.

Semi quantitative determination via GC-FID

(Order code: A445, SOP: A.0.6.)

+ fast screening
- useful only for amino acids and some derivatives free of contaminations
- not useful for Histidine(derivatives)
- not all amino acids will be determined

Quantitative determination via GC-FID

by Enantiomerlabeling (A47X, SOP: A.0.6.1.)

+ determination of all proteinogenic amino acids
- useful only for amino acids and some derivatives free of contaminations after determination of enantiomeric purity via GC-FID
- analysis time min. seven working days
- not useful for Histidine(derivatives)

Quantitative determination via GC-MS

by Enantiomerlabeling (A785, SOP: A.0.6.3.)

+ precise and fast determination of all proteinogenic amino acids
+ high reliability due to the selectivity of the mass selective detection even for contaminated samples.

• For description of the method download pdf.