Interlaboratory variability in the chemical analysis of leaf samples

@article{Bastide1978InterlaboratoryVI,
  title={Interlaboratory variability in the chemical analysis of leaf samples},
  author={J. G. A. La Bastide and C. P. van Goor},
  journal={Plant and Soil},
  year={1978},
  volume={49},
  pages={1-7}
}
SummaryStatistical analyses of the results of an inter-laboratory trial on the chemical analysis of the same leaf materials have revealed significant differences between the laboratories and within the same laboratories in the case of duplicate samples analysed at the same or different times. Ranking of laboratories according to the deviation of the results from mean values suggests real differences in the consistency of the methods used. 

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