TY - RPRT TI - Analyses with the KODAK-Ektachem. Accuracy control using reference method values and the influence of protein concentration. Part I. Electrolytes. AU - W R Külpmann AU - P Maibaum AU - O Sonntag PY - 1990 UR - https://pubmed.ncbi.nlm.nih.gov/2077095/ ID - 2077095 ER -