摘要 |
<p>The invention relates to a method for the standardization of the concentr ation of at least one analyte in a urine sample, comprising the following st eps: a) determining the concentration of at least one analyte, b) determinin g the concentration of at least one collagen or collagen fragment, c) standa rdizing the concentration of the at least one analyte relative to the concen tration of the at least one collagen or collagen fragment.</p> |