Analytical Services

At Xell, we offer a complete range of analytical services including spent media analysis, protein analytics and more.

Our analytical platform delivers precise results through proprietary methods for a broad range of biomolecules of different origin. Aside from sophisti- cated methods for even common analytes (e.g. amino acids, vitamins, trace elements), cutting-edge quantification of components like dipeptides or polyamines was established. Our goal is to tailor the method to the specific needs of each sample to get the most out of every analysis.

During the past 10 years we have gained extensive in-depth experience in the analysis of cell culture media and processes. Nowadays, with our power- ful analytical tools, we have extended our expertise into samples from food and feed, agriculture, chemical and other industries.

With the benefits of our custom platform, flexible approaches and short pro- cessing times, we are setting the highest benchmarks as a reliable service provider.

We have established validated methods for quantitation of various analytes, which we also make available to our customers. Our spent media analysis services cover:

  • Amino acids (proteogenic, non-proteogenic)
  • Ammonium
  • Ascorbate (vitamin C)
  • Glucose and lactate
  • Water-soluble vitamins (choline, folate, panthothenate, biotin, thiamine, etc.)
  • Inorganic anions (chloride, sulfate, phosphate, etc.)
  • Inorganic cations (sodium, potassium, calcium, magnesium, etc.)
  • Pyruvate and other organic acids
  • Saccharides (galactose, mannose, saccharose, etc.)

For more information on individual analyses, follow the links above or contact us directly.

The analysis of product quantity and quality is the most important benchmark for a biological production process. Monitoring and maintaining the stability and consistency of these factors is essential when designing new media or processes.

We can provide you with a broad range of product analytics:

  • Protein quantitation (SEC, RP, AC, SDS-PAGE, etc.)
  • Protein characterization (peptide mapping, lysine clipping, glyco analysis, etc.)

We offer physico-chemial analysis of cell culture media and feeds:

  • pH
  • Turbitiy
  • Osmolality
  • Redox potential
  • Moisture in powder
  • Powder particle size distribution