Enzymes

Schumann G., Klauke R., Canalias F., Bossert-Reuther S., Franck P.F.H, Gella F.J., Jørgensen P.J.,Dongchon Kang7, Lessinger J.M., Panteghini M., Ceriotti F. IFCC primary reference procedures for the measurement of catalytic activity concentrations of enzymes at 37 8C. Part 9: Reference procedure for the measurement of catalytic concentration of alkaline phosphatase. Clin Chem Lab Med 2011;49:1439-46 https://doi.org/10.1515/CCLM.2011.621

Infusino I, Schumann G, Ceriotti F, Panteghini M. Standardization in clinical enzymology: a challenge for the theory of metrological traceability. Clin Chem Lab Med. 2010; 48: 301-307 https://doi.org/10.1515/CCLM.2010.075

Toussaint B, Emons H, Schimmel HG, Bossert-Reuther S, Canalias F, Ceriotte F, Férard G, Ferrero CA, Franck PFH, Gella FJ, Henry J, Jorgensen PJ, Klauke R, Lessinger JM, Mazziotta D, Panteghini M, Ueda S, Schumann G. Traceability of values for catalytic activity concentration of enzymes: a certified reference material for aspartate transaminase. Clin Chem Lab Med 2010; 48: 795-803 https://doi.org/10.1515/cclm.2010.146

Jansen R, Schumann G, Baadenhuijsen H, Frank P, Franzini C, Kruse R, Kuypers A, Weykamp C, Panteghini M. Trueness verification and traceability assessment of results from commercial systems for measurement of six enzyme activities in serum. An international study in the EC4 framework of the Calibration 2000 project. Clin Chim Acta 2006; 368: 160-67 https://doi.org/10.1016/j.cca.2005.12.033

Schumann G, Aoki R, Ferrero CA, Ehlers G, Férard G, Gella FJ, Jorgensen PJ, Kanno T, Kessner A, Klauke R, Kytzia HJ, Lessinger JM, Miller WG, Nagel R, Pauwels J, Schimmel H, Siekmann L, Weidemann G, Yoshida K, Ceriotti F. IFCC primary reference procedures for the measurement of catalytic activity concentrations of enzymes at 37 degrees C: Part 8. Reference procedure for the measurement of catalytic concentration of alpha-amylase [alpha-Amylase: 1,4-alpha-D-glucan 4-glucanohydrolase (AMY), EC 3.2.1.1]. Clin Chem Lab Med 2006; 44: 1146-55. https://doi.org/10.1515/CCLM.2011.621