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BIBTEX RIS

Computation of HORRAT Values

2003; Oxford University Press; Volume: 86; Issue: 5 Linguagem: Inglês

10.1093/jaoac/86.5.1056

ISSN

1944-7922

Autores

Foster D McClure, Jung‐Keun Lee,

Tópico(s)

Mass Spectrometry Techniques and Applications

Resumo

The formula for the Horwitz ratio (HORRAT) as presented in the Study Director's Manual of AOAC INTERNATIONAL is applicable only when the concentration is in the unit/unit form (e.g., microg/microg, g/g, etc.). When the analyte concentration is a trace or mass fraction amount (e.g., microg/g), the formula generates incorrect HORRAT values. Alternative calculation procedures are presented to circumvent such problems.

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