CRMs

The accuracy of an analytical measurement is defined as the closeness of agreement between a test or measurement result and the true value. It usually requires calibration of the analytical method with a known standard. This is often done with standards of several concentrations to make a calibration or working curve.

The highest degree of confidence is achieved with Certified Reference Materials (CRMs), which are characterized by a metrologically valid procedure for one or more specified properties, accompanied by a certificate that provides the value of the specified property, its associated uncertainty, and a statement of metrological traceability, according to the definition stated in ISO Guide 30.

Showing 1-21 of 21 item(s)

Yessotoxin

CRM-00-YTX

Code: CRM-00-YTX Lot: 19-001 Aprox size 3 µg In: 0.5 mL Material Specification CONCENTRATION: [YTX] = (7.84 ± 0.43) µg/g PURITY: ≥98% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. In methanol. LONG TERM STORAGE: -20°C

Available

€75.00

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Okadaic acid

CRM-00-OA

Code: CRM-00-OA Lot: 15-004 Aprox size 8 µg In: 0.5 mL Material Specification CONCENTRATION: (20.2 ± 1.0) µg/g PURITY: ≥ 99% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. In methanol. LONG TERM STORAGE: -20°C

Available

€100.00

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Homoyessotoxin

CRM-00-hYTX

Code: CRM-00-hYTX Lot: 15-001 Aprox size 3 µg In: 0.5 mL Material Specification CONCENTRATION: (7.68 ± 0.44) µg/g PURITY: ≥99% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. In methanol. LONG TERM STORAGE: -20°C

Available

€75.00

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Dinophysistoxin-1

CRM-00-DTX1

Code: CRM-00-DTX1 Lot: 15-001 Aprox size 3 µg In: 0.5 mL Material Specification CONCENTRATION: (8.08 ± 0.41) µg/g PURITY: ≥ 98.0% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. In methanol. LONG TERM STORAGE: -20°C

Available

€160.00

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Domoic Acid

CRM-03-DA

Code: CRM-03-DA Lot: 20-001 Aprox size 50 µg In: 0.5 mL Material Specification CONCENTRATION: (101.8 ± 8.4) µg/g PURITY: >97% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. Aqueous (5%) acetonitrile LONG TERM STORAGE: 4°C

Available

€65.00

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N-sulfocarbamoyl Gonyautoxins 2 & 3

CRM-00-C1&2

Code: CRM-00-C1&2 Lot: 12-001 Aprox size 25 µg In: 0.5 mL Material Specification CONCENTRATION: [C1] = (40.1 ± 2.4) µg/g[C2] = (11.5 ± 0.9) µg/g PURITY: ≥99% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. Aqueous [AcOH] = 25·10-6 M, pH = 4.92 LONG TERM STORAGE: -20°C

Available

€110.00

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Gonyautoxins 2 & 3

CRM-00-GTX2&3

Code: CRM-00-GTX2&3 Lot: 12-001 Aprox size 15 µg In: 0.5 mL Material Specification CONCENTRATION: [GTX2] = (22.2 ± 1.5) µg/g [GTX3] = (8.2 ± 0.6) µg/g PURITY: ≥97% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. Aqueous [HCl] = 0.003 M, pH = 2.53 LONG TERM STORAGE: -20°C

Available

€110.00

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Dinophysistoxin-2

CRM-02-DTX2

Code: CRM-02-DTX2 Lot: 19-001 Aprox size 1,7 µg In: 0.5 mL Material Specification CONCENTRATION: (4.3 ± 0.3) µg/g PURITY: ≥ 98.0% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. In methanol. LONG TERM STORAGE: -20°C

Available

€220.00

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Azaspiracid-2

CRM-02-AZA2

Code: CRM-02-AZA2 Lot: 19-001 Aprox size 0.5 µg In: 0.5 mL Material Specification CONCENTRATION: [AZA2+37-epi-AZA2] = (1.29± 0.10) µg/g PURITY: ≥ 98% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. In methanol. LONG TERM STORAGE: -20°C

Available

€140.00

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Azaspiracid-3

CRM-02-AZA3

Code: CRM-02-AZA3 Lot: 14-001 Aprox size 0.5 µg In: 0.5 mL Material Specification CONCENTRATION: [AZA3+37-epi-AZA3] = (1.30± 0.09) µg/g PURITY: ≥ 96% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. In methanol. LONG TERM STORAGE: -20°C

Available

€240.00

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Decarbamoylgonyautoxins 2 & 3

CRM-00-dcGTX2&3

Code: CRM-00-dcGTX2&3 Lot: 13-001 Aprox size 20 µg In: 0.5 mL Material Specification CONCENTRATION: [dcGTX2] = (35.1± 1.9) µg/g [dcGTX3] = (8.0± 0.9) µg/g PURITY: ≥ 97% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. Aqueous [HCl] = 0.003 M, pH = 2.41. LONG TERM STORAGE: -20°C

Available

€110.00

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Tetrodotoxins

CRM-03-TTXs

Code: CRM-03-TTXs Lot: 12-001 Aprox size 14 µg In: 0.5 mL Material Specification CONCENTRATION: TTX] = (25.9 ± 1.3) µg/g [4,9-anhTTX] = (2.99 ± 0.16) µg/g PURITY: >96% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. Aqueous [AcOH] = 1 · 10-3 M, pH 3.91 LONG TERM STORAGE:-20°C

Available

€70.00

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Azaspiracid-1

CRM-02-AZA1

Code: CRM-02-AZA1 Lot: 17-001 Aprox size 0.5 µg In: 0.5 mL Material Specification CONCENTRATION: [AZA1+37-epi-AZA1] = (1.31± 0.07) µg/g PURITY: ≥ 98% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. In methanol. LONG TERM STORAGE: -20°C

Available

€80.00

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Gonyautoxin-1 and Gonyautoxin-4

CRM-00-GTX1&4

Code: CRM-00-GTX1&4 Lot: 15-001 Aprox size 15 µg In: 0.5 mL Material Specification CONCENTRATION: [GTX1] = (27.3 ± 1.6) µg/g [GTX4] = (7.3 ± 0.6) µg/g PURITY: >99% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. Aqueous [HCl] = 0.003 M, pH = 2.50 LONG TERM STORAGE: -20°C

Available

€110.00

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Decarbamoylsaxitoxin

CRM-00-dcSTX

Code: CRM-00-dcSTX Lot: 14-001 Aprox size 10 µg In: 0.5 mL Material Specification CONCENTRATION: [dcSTX] = (19.5 ± 1.7) µg/g PURITY: ≥ 99% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. Aqueous [HCl] = 3 mM, pH = 2.60 LONG TERM STORAGE: -20°C

Available

€110.00

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Neosaxitoxin

CRM-00-NEO

Code: CRM-00-NEO Lot: 14-001 Aprox size 10 µg In: 0.5 mL Material Specification CONCENTRATION: [Neo] = (20.5 ± 1.1) µg/g PURITY: ≥ 99% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. Aqueous [HCl] = 3 mM, pH = 2.62 LONG TERM STORAGE: -20°C

Available

€110.00

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Saxitoxin

CRM-00-STX

Code: CRM-00-STX Lot: 16-001 Aprox size 10 µg In: 0.5 mL Material Specification CONCENTRATION: [STX] = (20.5 ± 1.0) µg/g PURITY: ≥ 99% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. Aqueous [HCl] = 3 mM, pH = 2.63 LONG TERM STORAGE: -20°C

Available

€110.00

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Gonyautoxin 5

CRM-00-GTX5

Code: CRM-00-GTX5 Lot: 16-001 Aprox size 10 µg In: 0.5 mL Material Specification CONCENTRATION: [GTX5] = (18.1 ± 1.2) µg/g PURITY: >96% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. Aqueous [AcOH] = 25 µM, pH = 5.00 LONG TERM STORAGE: -20°C

Available

€110.00

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Gonyautoxin 6

CRM-00-GTX6

Code: CRM-00-GTX6 Lot: 16-001 Aprox size 5 µg In: 0.5 mL Material Specification CONCENTRATION: [GTX6] = (10.0 ± 0.5) µg/g PURITY: >96% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. Aqueous [AcOH] = 25 µM, pH = 4.85 LONG TERM STORAGE: -20°C

Available

€110.00

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Decarbamoylneosaxitoxin

CRM-00-dcNEO

Code: CRM-00-dcNEO Lot: 16-001 Aprox size 5 µg In:0.5 mL Material Specification CONCENTRATION: [dcNeo] = (9.1 ± 0.5) µg/g PURITY: ≥ 99% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. Aqueous [HCl] = 3 mM, pH = 2.5 LONG TERM STORAGE: -20°C

Available

€110.00

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7-O-Palmitoyl Okadaic Acid

CRM-02-DTX3a

Code: CRM-02-DTX3a Lot: 17-001 Aprox size 3 µg In: 0.5 mL Material Specification CONCENTRATION: (7.97 ± 0.76) µg/g PURITY: ≥ 97.0% FORMAT: Amber glass vial (approx. 0.5 ml) FORMULATION: Liquid. In methanol. LONG TERM STORAGE:-20°C

Available

€110.00

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