Scope - Shellfish toxins

e.g. Amnesic, lipophillic and paralytic shellfish toxins (chlorophyll samples are cooled and send with courier)

Wageningen University is accredited for the organization of Interlaboratory Studies by the Dutch Accreditation Council RvA under registration number R002. The accreditation is based on the ISO/IEC requirements (General requirements for proficiency testing, ISO/IEC 17043:2010). Measurands only meet the criteria for accreditation if the results are reported by a sufficient number of participants for at least three years and the results have proven to be homogeneous and stable.

Measurands marked with $ are not in the scope of the accreditation.

Scheme

Measurand group

Measurand

BT11

Toxins(SF) T

45-OH-homo-YTX^$, 45-OH-YTX^$, AZA-1, AZA-2, AZA-3, AZA-total, Free-DTX1, Free-DTX2, free-Okadaic-Acid, homo-YTX^$, PTX-1^$, PTX-2^$, Total OA group + PTX group, Total-DTX1, Total-DTX2, Total-free-OA+DTX1+DTX2, Total-hy-OA+DTX1+DTX2, Total-Okadaic-Acid, Total-YTX, YTX 20 measurands, 15 accredited

Measurand	Unit	Concentration range	Constant error	Proportional error	Accredited
45-OH-homo-YTX	mg/kg	0.5 - 5	0.05	25	$
45-OH-YTX	mg/kg	0.02 - 2	0.02	25	$
AZA-1	µg/kg	0.5 - 1500	1.5	20	yes
AZA-2	µg/kg	0.5 - 500	1	20	yes
AZA-3	µg/kg	0.5 - 500	1.5	20	yes
AZA-total	µg AZA eq./kg	0.5 - 5000	5	17.5	yes
Free-DTX1	µg/kg	0.2 - 500	1	20	yes
Free-DTX2	µg/kg	0.5 - 1000	1.25	20	yes
free-Okadaic-Acid	µg/kg	0.5 - 500	2.5	20	yes
homo-YTX	mg/kg	0.5 - 5	0.01	22.5	$
PTX-1	µg/kg	0.5 - 20			$
PTX-2	µg/kg	0.2 - 50			$
Total OA group + PTX group	µg OA eq./kg	0.5 - 1000	10	17.5	yes
Total-DTX1	µg/kg	0.5 - 1000	1.5	25	yes
Total-DTX2	µg/kg	0.5 - 1000	3	20	yes
Total-free-OA+DTX1+DTX2	µg OA eq./kg	0.5 - 1000	5	20	yes
Total-hy-OA+DTX1+DTX2	µg OA eq./kg	0.5 - 1000	8	20	yes
Total-Okadaic-Acid	µg/kg	0.5 - 500	5	20	yes
Total-YTX	mg YTX eq./kg	0.01 - 10	0.02	20	yes
YTX	mg/kg	0.01 - 2	0.01	22.5	yes

BT12

Toxins(SF) T

11-OH-STX^$, C-1,2, C-3,4^$, C1^$, C2^$, C3^$, C4^$, dc-GTX-1,4^$, dc-GTX-2,3^$, dc-GTX1^$, dc-GTX2^$, dc-GTX3, dc-GTX4^$, dc-NEO^$, dc-STX^$, GTX-1^$, GTX-1,4^$, GTX-2, GTX-2,3, GTX-3, GTX-4^$, GTX-5, GTX-6^$, NEO^$, STX, Total toxicity 26 measurands, 8 accredited

Measurand	Unit	Concentration range	Constant error	Proportional error	Accredited
11-OH-STX	µmol/kg	not specified			$
C-1,2	µmol/kg	0.01 - 5	0.25	25	yes
C-3,4	µmol/kg	not specified			$
C1	µmol/kg	0.01 - 5	0.05	25	$
C2	µmol/kg	0.01 - 1	0.2	25	$
C3	µmol/kg	not specified			$
C4	µmol/kg	not specified			$
dc-GTX-1,4	µmol/kg	not specified			$
dc-GTX-2,3	µmol/kg	not specified	0.1	25	$
dc-GTX1	µmol/kg	not specified			$
dc-GTX2	µmol/kg	0.01 - 1	0.15	25	$
dc-GTX3	µmol/kg	not specified	0.02	25	yes
dc-GTX4	µmol/kg	not specified			$
dc-NEO	µmol/kg	0.01 - 2			$
dc-STX	µmol/kg	0.01 - 5	0.05	25	$
GTX-1	µmol/kg	0.01 - 1	0.15	12.5	$
GTX-1,4	µmol/kg	0.01 - 2			$
GTX-2	µmol/kg	0.01 - 10	0.2	20	yes
GTX-2,3	µmol/kg	0.05 - 10	0.01	25	yes
GTX-3	µmol/kg	0.01 - 2	0.04	17.5	yes
GTX-4	µmol/kg	0.02 - 1			$
GTX-5	µmol/kg	0.05 - 10	0.04	25	yes
GTX-6	µmol/kg	not specified			$
NEO	µmol/kg	not specified			$
STX	µmol/kg	0.05 - 5	0.1	20	yes
Total toxicity	µgSTXdiHCleq./kg	50 - 3000	65	25	yes

BT13

Tetrodotoxin in shellfish TTX

Tetrodotoxin^$ 1 measurands, 0 accredited

Measurand	Full name	Unit	Concentration range	Constant error	Proportional error	Accredited
Tetrodotoxin	tetrodotoxin	µg/kg	5 - 200			$

BT7

Toxins(SF) T

Domoic Acid^$, Domoic+EpiDomoic, EpiDomoic Acid^$ 3 measurands, 1 accredited

Measurand	Unit	Concentration range	Constant error	Proportional error	Accredited
Domoic Acid	mg/kg	not specified			$
Domoic+EpiDomoic	mg/kg	0.2 - 100	0.25	10	yes
EpiDomoic Acid	mg/kg	not specified			$