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Variation within and among analytical methods for wine testing

July 2, 2019

Maureen Moroney

One question that comes up often – whether in the course of my own work, from other researchers and lab techs, or from wine industry members doing their own in-house wine analysis – is which method is “best” and gives the “right” answer.

This is a complicated topic. It touches on ideas related to sources of error, types of variation, method validation, instrument performance, staff training, quality assurance, critical thresholds, and impact on winemaking decisions, just to name a few.

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