pH Paper and Buffers
Thermo Scientific™ Kit de tampones de pH Orion™ ROSS™ All-in-One™
Mantenga los electrodos de pH de una forma más eficaz con los kits de tampones de pH Thermo Scientific™ Orion™ ROSS™ All-in-One™.
Buffer Solution (Borate), pH 10, Color Coded Blue, BAKER ANALYZED™ Reagent, J.T.Baker™
High quality chemicals for laboratory and specialized industrial use
Thermo Scientific™ Kit de tampones de pH Orion™ Standard All-in-One™
Facilite su trabajo con este kit de tampones de pH que incluye tres tampones, solución de almacenamiento y un frasco para el almacenamiento.
Thermo Scientific™ Frascos de tampón de pH Orion™
Realice calibraciones de pH precisas y reproducibles con los frascos de tampón de pH Thermo Scientific™ Orion™ codificados cromáticamente.
Tampón Redox para los electrodos de potencial de oxidación-reducción (ORP)
Used for testing, calibration and verification of redox/ORP sensors. Redox Buffer, 220mV, Reagecon™ is a ready to use solution of iron salts, including potassium ferrocyanide and tripotassium hexacyanoferrate, for use with reactions with a redox potential of 220mV.
Cytiva (Formerly GE Healthcare Life Sciences) Papel de pruebas de fenolftaleína en rollo
Combina facilidad de uso con exactitud y uniformidad para la determinación del punto de neutralización en reacciones de ácido débil/álcali fuerte.
Cytiva (Formerly GE Healthcare Life Sciences) Papeles indicadores de pH, tiras de CF
Proporciona un valor de pH visual extremadamente claro y exacto mediante el uso de cuatro segmentos diferentes de papeles indicadores impregnados con colorante. Los papeles indicadores de pH, tiras de CF Whatman™ utilizan colorantes que se han unido químicamente al papel y no se pueden filtrar en la solución.
LaMotte™ Insta-Test™ Single and Multi-Factor Test Strips
For water quality testing
Cytiva (Formerly GE Healthcare Life Sciences) Dispensadores de rollo de indicadores de pH
Proporciona una determinación rápida de valores de pH. Los dispensadores de rollo de indicadores de pH SR Whatman™ están disponibles tanto en intervalo completo como estrecho.
Borate Buffer, pH 9.00, Chem-Lab
For use in laboratory applications and pH measurements, including protein modification procedures. Borate Buffer, pH 9.00, Chem-Lab is an alkaline buffer solution traceable to Standard Reference Material (SRM) from NIST. It is comprised of Boric acid, Potassium chloride and Sodium hydroxide.
Lovibond™ Powder Packs™ para cloro libre
Premeasured unit dose DPD reagents for water quality testing
Mettler Toledo™ Soluciones de tampón técnico, pH
Proporciona un tampón de pH total fiable. La solución de tampón de pH técnico Mettler Toledo™ se especifica con dos decimales y es trazable según los estándares del NIST. La solución con codificación cromática está disponible en un frasco de plástico de 250 ml con etiquetas claras.
pH papers, pH strips, pH sticks and pH test kits are used in laboratory, industrial and educational environments to qualitatively assess pH levels or monitor acid-base titrations in a range of sample types. pH buffer reference standards are used for the accurate calibration of pH meters and monitors for far more precise and quantitative pH measurement.
pH test papers are supplied either as rolls, tear-off strips, or sticks. They are impregnated with indicator dyes which change colour when dipped into the solution under test. In some products, the indicator dyes are covalently linked to the cellulose fibres to avoid bleed-out (leaching) and contamination of the test samples.
Some pH papers indicate simple acid or base conditions with a single red-blue colour change (also called litmus papers). Universal pH papers and strips contain a mix of indicator dyes which cover a range of pH values up to and including 0 to 14 in a single test. The observed colour change is checked against a comparison chart normally supplied with the papers.
Alternatively, for accurate assessment of pH, standard (reference) pH buffers are manufactured to very high degrees of precision and are used for the quantitative calibration of pH meters, electrodes and other electrochemical sensors. Standard buffers are:
- Typically supplied at fixed values of pH4.01, pH7.00 and pH10.01
- May be colour-coded for easy and quick identification
- Certified to their nominal pH and accuracy at a specified temperature (typically 20°C)
- Supplied as ready-to-use solutions or concentrates
- Contain antifungals for extended shelf life