Reproducibility of pyrolysis-gas chromatographic analyses of the mold Penicillium brevi-compactum

In English The reproducibility of multivariate measurements is discussed. Reproducibility of a second kind is defined, in which part of the variability between samples is described by a principal components model. The use of this generalized reproducibiity is shown to give an improved precision in the pyrolysis-gas chromatography of a Penicillium species.