T. Beyer

Comparison of established and novel purity tests for the quality control of heparin by means of a set of 177 heparin samples

U. Holzgrabe, K. Baumann, M. Matz, 2011, Analytical and bioanalytical chemistry.

Alternatives to amino acid analysis for the purity control of pharmaceutical grade L-alanine.

U. Holzgrabe, T. Beyer, C. Nap, 2010, Journal of separation science.

Quantitative NMR spectroscopy of biologically active substances and excipients

U. Holzgrabe, T. Beyer, B. Diehl, 2010 .

The role of solvents in the signal separation for quantitative (1)H NMR spectroscopy.

U. Holzgrabe, T. Beyer, C. Schollmayer, 2010, Journal of pharmaceutical and biomedical analysis.

Investigation of Multi-Component Drugs by NMR Spectroscopy

U. Holzgrabe, T. Beyer, 2008 .

Composition of OSCS-contaminated heparin occurring in 2008 in batches on the German market.

U. Holzgrabe, K. Baumann, M. Matz, 2010, European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences.

Determination of Oversulphated Chondroitin Sulphate and Dermatan Sulphate in unfractionated heparin by (1)H-NMR - Collaborative study for quantification and analytical determination of LoD.

U. Holzgrabe, A. Rodomonte, B. Mulloy, 2008, Pharmeuropa bio.

Quality assessment of unfractionated heparin using 1H nuclear magnetic resonance spectroscopy.

U. Holzgrabe, M. Spraul, E. Humpfer, 2008, Journal of pharmaceutical and biomedical analysis.

Prediction of the oversulphated chondroitin sulphate contamination of unfractionated heparin by ATR-IR spectrophotometry.

U. Holzgrabe, T. Beyer, J. Norwig, 2009, Pharmeuropa scientific notes.