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.

524 Results

Sort by

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

전도도 표준 솔루션

Supplier: VWR Chemicals

전기화학적 분석에 필요한 모든 요구사항을 충족하기 위한 1,3 ~ 500000 µs 범위의 값을 가진 인증된 제어 표준의 전체 범위.

Expand 27 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® 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%.

Expand 2 Items

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

Supplier: VWR Chemicals

Thulium Standard, 10 ppm, VWR® ARISTAR®, Thulium, Matrix: 2% HNO₃, Application: ICP-MS standards

Expand 1 Items

VWR® ARISTAR®, ICP Multi-Element Calibration Standard 1 in dilute Nitric Acid

Supplier: VWR Chemicals

In 5% nitric acid solution.

Expand 1 Items

VWR® ARISTAR® Anion Multi-Component Standard 2 for Ion Chromatography, Avantor

Supplier: VWR Chemicals

Anion multi-component standard 2 for IC, VWR®, Application: Ion chromatography standards

Expand 1 Items

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

Supplier: VWR Chemicals

Calcium Standard, 10000 mg/L, VWR® ARISTAR®, Calcium, Matrix: 2-5% HNO₃, Application: ICP-MS standards

Expand 3 Items

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

Supplier: VWR Chemicals

Praseodymium Standard, 1000 ppm, VWR® ARISTAR®, Praseodymium, Matrix: 2-5% HNO₃, Application: ICP-MS standards

Expand 2 Items

VWR®, Perfluorooctane sulphonic acid, Certified Reference Material (CRM)

Supplier: VWR Chemicals

Per- and polyfluoroalkyl substances (PFAS) are amongst the primary emerging contaminants of concern. The detection and quantification of known PFAS and the discovery of unknown PFAS substances has never been more important.

Expand 1 Items

석유 산업용 밀도 표준, 인증된 참조 물질

Supplier: VWR Chemicals

밀도 인증 표준물질은 방법론에 따라 석유 및 파생제품의 밀도 시험에 사용되는 실험실 기기를 검증하기 위한 것이지만 ASTM D4052, IP 365 및 기타 동등한 국제 방법론과 같이 이에 국한되지 않습니다.

Expand 4 Items

60 °C 밀도 표준

Supplier: VWR Chemicals

이 제품은 pycnometric, 진동계 또는 비중계 기반 기술에 의한 밀도 측정을 위한 교정 표준으로 사용될 수 있습니다.

Expand 1 Items

VWR®, Environmental standard, PAH Mix 1, EPA 610

Supplier: VWR Chemicals

Multi-component standard with 0,1 mg/ml of each component in methanol.

Expand 1 Items

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.