Dioxin Reporting Limits and Method Detection Limit Studies (MDLs)

Each HRGCMS method has general reporting limits and detection limits determined by the method; however, actual detection limits will vary by matrix and sample due to a number of factors impacting the analytical process. To meet established quality assurance standards and provide clients with an assurance of ongoing capability and performance within acceptable limits, Pace Analytical conducts annual Method Detection Limited (MDL) studies for each method and matrix that is routinely performed at the dioxin laboratory. The current MDL studies are available for download below:

Specific Isomer	Compound Name	Hi Res		Low Res
Dioxiin:		Water (ppq)	Solid (ppt)	Water (ppt)	Solid (ppb)
2378	TCDD Tetrachlorodibenzo-p-dioxin	10	1	10	1
12378	PeCDD Pentachlorodibenzo-p-dioxin	50	5	25	2.5
123678	HxCDD Hexachlorodibenzo-p-dioxin	50	5	25	2.5
123478	HxCDD Hexachlorodibenzo-p-dioxin	50	5	25	2.5
123789	HxCDD Hexachlorodibenzo-p-dioxin	50	5	25	2.5
1234678	HpCDD Heptachlorodibenzo-p-dioxin	50	5	25	2.5
12346789	OCDD Octachlorodibenzo-p-dioxin	100	10	50	5
Furan:
2378	TCDF Tetrachlorodibenzofuran	10	1	10	1
12378	PeCDF Pentachlorodibenzofuran	50	5	25	2.5
23478	PeCDF Pentachlorodibenzofuran	50	5	25	2.5
123678	HxCDF Hexachlorodibenzofuran	50	5	25	2.5
123789	HxCDF Hexachlorodibenzofuran	50	5	25	2.5
123478	HxCDF Hexachlorodibenzofuran	50	5	25	2.5
234678	HxCDF Hexachlorodibenzofuran	50	5	25	2.5
1234678	HpCDF Heptachlorodibenzofuran	50	5	25	2.5
1234789	HpCDF Heptachlorodibenzofuran	50	5	25	2.5
12346789	OCDF Octachlorodibenzofuran	100	10	50	5

MDL Studies

• 1613 Drinking Water
• 1613 Tissue
• 8290 Solid
• 1668 Water
• 1668 Wipe
• 23 Air
• 8280 Solid
• 1613 Water
• 1613 Wipe
• 8290 Tissue
• 1668 Solid
• 1668A Water
• TO-9 Air
• 1613 Solid
• 8290 Water
• 8290 Wipe
• 1668 Tissue
• 1668A Solid
• 8280 Water