: The 3rd Edition (1998) is available as an online resource provided by IUPAC. Scope and Content (4th Edition)
The Orange Book would correct this to: “The limit of detection (LOD), calculated as 3.3 × (standard deviation of blank / slope of calibration curve), was 0.5 µg/L (0.5 ppb).” iupac orange book pdf
of the Orange Book, such as chromatography or mass spectrometry? : The 3rd Edition (1998) is available as