표준 물질

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®, Silicate 1,000 mg/L in 1% sodium hydroxide solution, standard for ion chromatography

Supplier: VWR Chemicals

Silicate standard solution, 1000 mg/l, VWR®, Matrix: NaOH 1%, Application: Ion chromatography standards

Expand 1 Items

VWR®, Lutetium standard solution, 10000 mg/L Lu in dil. nitric acid (from Lu₂O₃) ARISTAR® standard for ICP

Supplier: VWR Chemicals

Lu₂O₃ in HNO₃ 2 to 5%.

Expand 2 Items

VWR®, Diazinon 100 µg/ml in methanol, pesticide reference standard

Supplier: VWR Chemicals

Organic Standard, Diazinon 100 µg/ml in methanol, 포장 유형: Glass ampoule

Expand 1 Items

VWR®, Residual Solvents Class 1 According to Ph. Eur. Versions 8.8 and 10

Supplier: VWR Chemicals

The level of volatile organic solvents in pharmaceutical raw materials or finished product is defined and monitored. Residual solvents are classified according to their risk assessment classes. A selection of residual solvent standards is now available from Avantor.

Expand 1 Items

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

Expand 2 Items

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

Expand 1 Items

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

Expand 2 Items

VWR®, Standard solution (1000 ppm NO₃) for the preparation of nitrate standard solution (100 ppm NO₃) Reag. Ph. Eur.; 5002100

Supplier: VWR Chemicals

Nitrate standard solution, 1000 mg/l, VWR®, Contents: KNO₃ in H₂O, Application: Ion chromatography standards

Expand 1 Items

VWR®, Alternate Metals II, 4 components: Ca 500 mg/l, Na 500 mg/l, K 100 mg/l, Mg 100 mg/l in 2% HNO₃

Supplier: VWR Chemicals

Multi-Element Standard, Alternate Metals II (4 components), VWR®, Ca 500 mg/l, Na 500 mg/l, K 100 mg/l, Mg 100 mg/l, Matrix: 2% HNO₃, Application: ICP standards

Expand 1 Items

VWR®, Chlorate 1,000 mg/L in Water standard for ion chromatography

Supplier: VWR Chemicals

Chlorate standard solution, 1000 mg/l, VWR®, Contents: NaClO₃ in H₂O, Application: Ion chromatography standards

Expand 1 Items

VWR®, Boron standard solution, 5000 mg/L B in water

Supplier: VWR Chemicals

This certified reference material is produced using a high-purity starting material, acid from sub-boiling and 18 MOhm deionised water.

Expand 1 Items

VWR®, Iodate 1,000 mg/L in water standard for ion chromatography

Supplier: VWR Chemicals

Iodate standard solution, 1000 mg/l, VWR®, Contents: KIO₃ in H₂O, Application: Ion chromatography standards

Expand 1 Items

VWR®, Arsenic standard solution, 1,000 mg/L As in dil. nitric acid AVS TITRINORM standard for AAS

Supplier: VWR Chemicals

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

Expand 2 Items

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

Supplier: VWR Chemicals

Lithium Standard, 1000 mg/L, VWR®, Lithium, Matrix: H₂O, Application: Ion chromatography standards

Expand 1 Items

VWR®, Certified Reference Materials for the standardisation of volumetric solutions

Supplier: VWR Chemicals

CRM's - secondary reference materials intended for standardisation of volumetric solutions in accordance with the Pharmacopoeia (Ph. Eur. and USP). These volumetric standards are prepared from high purity salts. Certified mass fraction is determined by classical analysis according to ISO/IEC 17025. Homogeneity and stability studies have been performed according to the requirements of ISO 17034 and ISO Guide 35. All volumetric standards are traceable to SI (NIST or BAM).