Standards

Meeting regulations in any industry, standards are essential for periodically checking the accuracy of equipment pieces. By comparing against the known values, output readings detect errors present and inform personnel adjustments are required. Once the settings of the manual or automatic instruments have returned to zero, the reestablished conditions will yield optimal working performance. Calibrating with concentrated standards eliminates the possibility that environmental changes will induce instrumental miscalculation when accuracy matters most.

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VWR® ARISTAR®, Vanadium Standard Solution, 1000 mg/L V in dil. Nitric Acid (from V2O5), Standard for ICP

Supplier: VWR Chemicals

V₂O₅ in HNO₃ 2 to 5%.

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VWR®, Mercury standard solution, 1,000 mg/l Hg in dil. nitric acid (from Hg) ARISTAR® standard for ICP

Supplier: VWR Chemicals

Hg in HNO₃ 10%.

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VWR® PESTINORM®, Tetrahydrofuran (THF), Secondary Reference Standard for GC

Supplier: VWR Chemicals

A secondary GC solvent reference standard for various chromatographic and analytical applications.

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VWR®, Sulphate 1000 mg/L in water standard for ion chromatography

Supplier: VWR Chemicals

Sulphate standard solution, 1000 mg/l, VWR®, Contents: Na₂SO₄ in H₂O, Application: Ion chromatography standards

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VWR® AVS TITRINORM, Iron Standard Solution, 1000 mg/L Fe in 2% Hydrochloric Acid AVS TITRINORM Standard for AAS

Supplier: VWR Chemicals

Iron Standard, 1000 mg/L, VWR® AVS TITRINORM, Iron, Matrix: 2% HCl, Application: AAS standards

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VWR®, Potassium standard solution, 1,000 mg/L K in dilute nitric acid AVS TITRINORM standard for AAS

Supplier: VWR Chemicals

Potassium Standard, 1000 mg/L, VWR®, Potassium, Matrix: 2% HNO₃, Application: AAS standards

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VWR®, Perchlorate 1,000 mg/l in Water standard for ion chromatography

Supplier: VWR Chemicals

Perchlorate 1,000 mg/l in water standard for ion chromatography, 1000 mg/l, VWR®, Contents: KClO₄ in H₂O, Application: Ion chromatography standards

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VWR® ARISTAR®, Sulphate Standard Solution, 1000 mg/L SO₄²⁻ in Water (from K₂SO₄) Standard for Ion Chromatography

Supplier: VWR Chemicals

K₂SO₄ in H₂O.

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VWR® ARISTAR®, Copper Standard Solution, 1000 mg/L Cu in dil. Nitric Acid (from Cu), Standard for ICP

Supplier: VWR Chemicals

Cu in HNO₃ 2 to 5%.

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ARISTAR®VWR® , Magnesium Standard Solution, 1000 mg/L Mg in dil. Nitric Acid (from MgO), Standard for ICP

Supplier: VWR Chemicals

MgO in HNO₃ 2 to 5%.

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VWR®, Standard solution (250 ppm NH₄) for the preparation of Ammonium standard solution (2.5 ppm NH₄) Reag.Ph.Eur.; 5000301

Supplier: VWR Chemicals

Ammonium Standard, Ammonium standard solution, 250 mg/L, VWR®, Matrix: H₂O

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VWR® ARISTAR®, Cadmium Standard Solutions for ICP-MS

Supplier: VWR Chemicals

Cadmium Standard, 1000 mg/L, VWR® ARISTAR®, Cadmium, Matrix: 2-5% HNO₃, Application: ICP-MS standards

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ARISTAR®, Bismuth Standard Solutions for ICP-MS

Supplier: VWR Chemicals

Bismuth Standard, 1000 mg/L, VWR® ARISTAR®, Bismuth, Matrix: 2-5% HNO₃, Application: ICP-MS standards

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VWR® ARISTAR®, Tellurium Standard Solutions for ICP-MS

Supplier: VWR Chemicals

Tellurium Standard, 1000 mg/L, VWR® ARISTAR®, Tellurium, Matrix: 20% HCl, Application: ICP-MS standards

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VWR®, Sulphur, Certified Reference Materials, in heavy mineral oil

Supplier: VWR Chemicals

Sulphur CRMs are suitable for calibration, verification or for use in quality control procedures used for analysing sulphur content in petroleum products.