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.
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®, Conductivity standard solutions
Supplier: VWR Chemicals
A complete range of certified control standards with values ranging from 1,3 to 500000 µs to meet all the requirements for electrochemical analysis.
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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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VWR® ARISTAR®, Magnesium Standard Solution, 10000 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® ARISTAR®, Silicon Standard Solution, 1000 mg/L Si in Water with Hydrofluoric Acid (max. 1%) (from (NH4)2SiF6), Standard for ICP
Supplier: VWR Chemicals
(NH₄)₂ SiF₆ in H₂O tr. HF.
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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®, Gold standard solution, 1,000 mg/L Au in 10% hydrochloric acid (from Au) ARISTAR® standard for ICP
Supplier: VWR Chemicals
Au in HCl 10%.
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VWR®, Colour reference solutions acc. to Ph. Eur., ready to use
Supplier: VWR Chemicals
These solutions are developed and produced according to chapter 2.2.2. 'Degree of colouration of liquids' of the European Pharmacopoeia. (brown, brown-yellow, green-yellow, red and yellow). These kits are ready to use, and are dedicated to help you save time and money because preparation of these solutions is very complex.
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VWR® ARISTAR®, Phosphorus Standard Solutions for ICP-MS
Supplier: VWR Chemicals
Phosphorus Standard, 1000 ppm, VWR® ARISTAR®, Phosphorus, Matrix: H₂O, Application: ICP-MS standards
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VWR®, Yttrium standard solution, 1000 mg/L Y in dil. nitric acid (from Y₂O₃) ARISTAR® standard for ICP
Supplier: VWR Chemicals
Y₂O₃ in HNO₃ 2 to 5%.
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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® 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® 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® ARISTAR®, Strontium Standard Solution, 1000 mg/L Sr in dil. Nitric Acid (from Sr(NO₃)₂), Standard for ICP
Supplier: VWR Chemicals
Sr(NO₃)₂ in HNO₃ 2 to 5%.
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Supplier: VWR Chemicals
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Supplier: VWR Chemicals
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Supplier: VWR Chemicals