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Estándares fisicoquímicos

Estándares fisicoquímicos

Los estándares fisicoquímicos son materiales de referencia esenciales utilizados para garantizar la precisión y fiabilidad de diversas mediciones analíticas en la investigación científica y aplicaciones industriales. Esta categoría incluye una amplia gama de estándares como los estándares de conductividad, los estándares de electroquímica y los estándares y reactivos de ICP-OES/ICP-MS, que son cruciales para análisis elementales precisos y mediciones de conductividad. Las soluciones tampón de pH y los reactivos de carbono orgánico/inorgánico total son vitales para mantener los niveles de pH y medir el contenido de carbono en las muestras. Los estándares de la Farmacopea Europea (EP), la Farmacopea de los Estados Unidos (USP) y otras farmacopeas proporcionan puntos de referencia para el control de calidad farmacéutico. Otros estándares como los de turbidez, densidad, refractometría y viscosidad aseguran mediciones precisas de propiedades físicas. Los estándares especializados, como los de la industria del vino, lácteos y petroquímica, apoyan el control de calidad y el cumplimiento normativo en sectores específicos. Estos estándares fisicoquímicos desempeñan un papel crucial en garantizar la validez y reproducibilidad de los resultados experimentales, apoyando una amplia gama de aplicaciones, desde el monitoreo ambiental hasta las pruebas farmacéuticas y la ciencia de materiales.

Subcategorías de "Estándares fisicoquímicos"

Se han encontrado 3970 productos de "Estándares fisicoquímicos"

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  • Ref: 07-MEHLBS01

    1l
    164,00€
  • Reagecon Potassium Bromate/Bromide 0.0167M (0.1N) Analytical Volumetric Solution (AVL)


    Reagecon's Potassium Bromate/Bromide 0.0167M (0.1N) Analytical Volumetric Solution (AVL) is a fully factorised, high purity, stable product, developed and tested for oxidation/reduction titrations.  This Analytical Volumetric Solution, also called titrant, standard titrant or standard solution, is tested to a specification of ± 0.1%. It is a reagent of known concentration, that is dispensed from a burette or other dispensing apparatus to a sample (analyte), until a reaction between the two liquids is judged to be complete.  The product may be used for manual titrations, or more commonly automatic titrations, to determine the end points by detection of any of several properties.  Oxidation/reduction titrations depend on changes in the electropotential of the oxidation reduction system and always involves a reaction between an oxidising and reducing pair. - Titration is a rapid, economical and versatile analytical tool. This Reagecon titrant is accurate, stable, reproducible and fully factorised. Titrations performed with this product, exhibit defined stoichiometry, are quantitative, establish an equilibrium that is definitive and fast and provide unambiguous results. Stability is proven (either opened or unopened) for the shelf life of this product.
    Forma y color:Liquid

    Ref: 07-KB20016F

    1l
    62,00€
  • Ref: 07-NH4C2O41

    1l
    117,00€
  • Reagecon ICP, ICP-MS Multi Element Standard (7 Elements) in 2-5% Nitric Acid (HNO₃)


    Pricing displayed is Nett. For order quantities above 4 units, ask your sales contact for a quotation. Reagecon's Multi Element Standard for ICP; ICP-MS in 2-5% Nitric Acid (HNO₃) is manufactured from ultra-pure metals or salts. This product is manufactured gravimetrically using the mass balance approach: 100% less the sum of all impurities (w/w). Prior to bottling; the final product is tested and verified using ICP-MS and is reported using the gravimetric result; corrected for density. The results are reported in mg/kg and mg/L on the basis of weight and density. Reagecon hold ISO 17025 (A2LA Ref: 6739.02) accreditation for calibration of laboratory balances. - GHS/OSHA compliant, REACH - This product is produced in a highly controlled cleanroom (ISO 7) environment, using ultra-pure water (specially treated for the production of mass spectroscopy standards), triple distilled acids and triple leached pre-cleaned bottles. The titrimetry and spectroscopy are controlled and calibrated using separate standards, so the product comes with two layers of traceability including NIST Standards, where available. All of the uncertainties of measurement for this product are calculated according to Eurachem/CITAC guidelines and reported as expanded uncertainties at the 95% confidence level. Description | Concentration: - Chromium (Cr): 1 µg/mL (ppm). - Cobalt (Co): 1 µg/mL (ppm). - Copper (Cu): 1 µg/mL (ppm). - Iron (Fe): 1 µg/mL (ppm). - Manganese (Mn): 1 µg/mL (ppm). - Molybdenum (Mo): 1 µg/mL (ppm). - Nickel (Ni): 1 µg/mL (ppm).
    Forma y color:Liquid

    Ref: 07-REICPCAL7X

    100ml
    458,00€
  • Ref: 07-NAS51

    1l
    140,00€
  • Reagecon 3M Potassium Chloride Electrode Filling Solution saturated with Silver Chloride (Electrolyte)


    Concentrated or saturated Potassium Chloride (KCl) is the optimal electrolyte and filling solution for potentiometric titrations, direct pH measurement, redox or ion measurement where silver/silver chloride or calomel reference electrodes are used. However, saturated KCl is only sparingly soluble below 20°C, so if measurements below this temperature are to be carried out 3M Potassium Chloride remains in solution down to less than 10°C. Some electrode manufacturers recommend that the Potassium Chloride be saturated with Silver Chloride (AgCl). - A good electrolyte must fulfil a number of conditions. The equitransference of the cation/anion combination should be as close as possible to being equimobile, have constant chloride activity, be of high electrical conductance and be as non-chemically reactive as possible. Reagecon 3M Potassium Chloride Electrode Filling Solution Saturated with Silver Chloride is a high quality product that fulfils all of these criteria.
    Forma y color:Liquid

    Ref: 07-EFS3AC

    100ml
    42,00€
  • Reagecon Spectrophotometry Stray Light Inorganic 260 nm Cut-off Filter - Sodium Iodide with Blank


    Reagecon's Spectrophotometry Stray Light Inorganic 260 nm Cut-off Filter - Sodium Iodide is formulated to give zero absorbance at 260 nm wavelength. This standard is used to indicate to the analyst that the instrument is measuring light omitted from a source, other than through the sample cuvette.
    Forma y color:Liquid

    Ref: 07-RSPEC0038

    1cuvetteblank
    1.436,00€
  • Reagecon pH 2.00 Buffer Solution at 25°C in Bag-in-Box


    Reagecon’s pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.
    Forma y color:Liquid

    Ref: 07-BPH13

    5l
    131,00€
  • Reagecon 20 NTU Ratio Turbidity Standard


    Reagecon 20 NTU Ratio Turbidity Standard is a suspension of polymer microspheres. The product has guaranteed stability throughout its entire shelf life; even after opening the bottle. - Reagecon’s Turbidity Standards for ratio instruments are composed of suspended polymer microspheres; with well defined spherical shape. - Designed and formulated to overcome the adverse safety; accuracy and stability issues experienced with Formazin Turbidity Standards. - Traceable to NIST standard reference materials. - Manufactured to exacting specifications with an extended shelf life and stability; even after opening the bottle. - US EPA approved for drinking water turbidity. - Non-toxic and non-carcinogenic. - Reagecon also offers a range of Stabilised Formazin Turbidity Standards which are marketed under the Turbiform™ brand See More …
    Forma y color:Liquid

    Ref: 07-CRSR-20-500

    500ml
    304,00€
  • Reagecon 350,000 µS/cm Conductivity Standard at 25°C (CDt)


    Reagecon's Conductivity Standard at 25°C is tested by an ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable. The product is aqueous based; non-hazardous and accurate to a specification of ± 1%. - To enable analysts to achieve the correct result when measuring conductivity and to prove the correctness of that result; Reagecon has developed a high quality range of Conductivity Standards; which can be used for calibration of conductivity senors; quality control; method validation and instrument qualification. - Reagecon Conductivity Standards are aqueous based; thereby eliminating any errors attributable to matrix mismatch. - Directly traceable to NIST standard reference materials; meets the specification requirements of all the major Pharmacopoeias. - Each bottle is supplied with a comprehensive Certificate of Analysis and has a table of conductivity variation with temperature available via the product label; as are lot numbers and expiry dates for user convenience. - The low temperature coefficient of variation; reduces measurement errors and enables non-temperature controlled use and is suitable for field work. - High accuracy ± 1% at 25°C; enables the standards to be used as calibrators and/or controls; in accordance with the most exacting industrial requirements. - Manufactured to exacting specifications with an extended shelf life and stability; even after opening the bottle thereby eliminating the requirement to open a fresh bottle of standard every time it is used.
    Forma y color:Liquid

    Ref: 07-CSKC350M

    500ml
    204,00€
  • Reagecon 4000 NTU Turbiform™ Stabilised Formazin Turbidity Standard


    This standard is an aqueous suspension of a formazin type product that carries all of the advantages of formazin but eliminates its shortcomings. It is stable; safe; EPA approved and accurate. - Reagecon have developed a proprietary synthetic process that produces a family of products called Turbiform™. These products combine most of the positive attributes of the formazin and AMCO APEA-1 range of standards already available from Reagecon; whilst eliminating most of the shortcomings. Most importantly; this process does not interfere adversely with the status of formazin as the recognised primary standard. - Product exhibits a wide range of particle sizes; shapes and slopes (similar to formazin) mean diameter 3 µm with distribution of between 1 and 20 microns; which are similar to the particle size and distribution found in most sample types. - This product can be used to calibrate; control; validate or qualify; almost any make or model of Turbidity measuring instrument. - Traceable to NIST reference material 1690 and 1691 - Can be used to calibrate; control; validate or qualify almost any make or model of instrument
    Forma y color:Liquid

    Ref: 07-RSTFMZ4M01

    100ml
    46,00€
  • Reagecon Refractive Index Standard (Stabilised Sucrose) 1.36384 nD units at 20°C


    Reagecon's Refractive Index Standard (Stabilised Sucrose) 1.36384 nD units at 20°C is a high quality product, with an extended shelf life to be used either as a calibrant or analytical control material for use in Refractive Index based methods for Refractive Index determination. This product can be used on any make or model of refractometer. The product is tested using a state of the art refractometer, manufactured gravimetrically and is traceable. Reagecon holds ISO 17025 accreditation for the test method used to certify this product. - Reagecon holds ISO 17025 accreditation (A2LA Ref: 6739.03) for testing Refractive Index (Brix standards) using refractometry. This product has an uncertainty of measurement of ± 0.00014 nD units. It is stable for one year; either opened or unopened and is presented in a convenient 15ml dropper bottle. The product is prepared gravimetrically on a weight/weight basis. Both solute and solvent are weighed on a balance calibrated by OIML traceable weights. Reagecon holds ISO 17025 accreditation (A2LA Ref: 6739.02) for calibration of laboratory balances. - High accuracy (± 0.00014 nD units) - Tested using a state of the art Refractometer
    Forma y color:Liquid

    Ref: 07-RIBS20S6

    6x15ml
    510,00€
  • Reagecon pH 5.00 Mercury Free Buffer Solution at 25°C


    Reagecon’s Mercury Free pH Buffer Solution at 25°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.
    Forma y color:Liquid

    Ref: 07-1050525MF

    500ml
    33,00€
  • Reagecon Sodium Hydroxide 4.0M (4.0N) Analytical Volumetric Solution (AVL)


    Reagecon's Sodium Hydroxide 4.0M (4.0N) Analytical Volumetric Solution (AVL) is tested by an ISO 17025 Accredited Test Method (A2LA Ref: 6739.03). This product is a fully factorised; high purity; stable product; developed and tested for acid/base titrations. This Analytical Volumetric Solution; also called titrant; standard titrant or standard solution; is tested to a specification of ± 0.1%. It is a reagent of known concentration; that is dispensed from a burette or other dispensing apparatus to a sample (analyte); until a reaction between the two liquids is judged to be complete. The product may be used for manual titrations; or more commonly automatic titrations; to determine the end points by detection of any of several properties. Acid/base titrations; also called neutralisation titrations; are used to determine either the amount of acid/base in a sample or the substance that can be converted to an acid/base. - Titration is a rapid, economical and versatile analytical tool. This Reagecon titrant is accurate, stable, reproducible and fully factorised. Titrations performed with this product, exhibit defined stoichiometry, are quantitative, establish an equilibrium that is definitive and fast and provide unambiguous results. Stability is proven (either opened or unopened) for the shelf life of this product.
    Forma y color:Liquid

    Ref: 07-S24001

    1l
    34,00€
  • Reagecon Iron Alum (Volhard) Indicator Solution


    Reagecon's Iron Alum (Volhard) Indicator Solution is a high quality Indicator Solution produced from the highest quality raw materials and manufactured and tested under rigorous conditions. For manual titrations; indicator titrant or analyte change colour and this colour change is by far the most important method of end point detection, in such titrations. A high quality indicator solution such as Reagecon's Iron Alum (Volhard) Indicator Solution facilitates end point detection, in a clear and unambiguous manner and is an imperative for accurate manual titrimetry.
    Forma y color:Liquid

    Ref: 07-FEA25

    250ml
    154,00€
  • Ref: 07-NATB46

    100ml
    38,00€
  • Ref: 07-SOILSP01

    1l
    1.650,00€
  • Reagecon Silver Standard for Atomic Absorption (AAS) 10,000 µg/mL (10,000 ppm) in 1M Nitric Acid (HNO₃)


    Reagecon's Silver Standard for Atomic Absorption (AAS) 10;000 µg/mL in 1M Nitric Acid (HNO₃) is manufactured from very pure metal or salt (at least 99.9%). This product is manufactured gravimetrically. Prior to bottling; the final product is tested and verified using ICP-MS and is reported using the gravimetric result; to a specification of ± 0.2%. The results are reported in mg/L on the basis of weight). Reagecon hold ISO 17025 accreditation (A2LA Ref: 6739.02) for calibration of laboratory balances. - GHS/OSHA compliant, REACH - This product is produced in a highly controlled cleanroom (ISO 7) environment, using ultra-pure water (specially treated for the production of mass spectroscopy standards). The titrimetry and spectroscopy are controlled and calibrated using separate standards, so the product comes with two layers of traceability including NIST Standards where available. All of the uncertainties of measurement for this product are calculated according to Eurachem/CITAC guidelines and reported as expanded uncertainties at the 95% confidence level.
    Forma y color:Liquid

    Ref: 07-AAAGM

    500ml
    169,00€
  • Reagecon pH 1.675 NIST Value Buffer Solution at 20°C in Bag-in-Box


    Reagecon’s NIST Value pH Buffer Solution at 20°C is tested by our ISO 17025 Accredited Test Method (A2LA Ref: 6739.03) and NIST traceable.
    Forma y color:Liquid

    Ref: 07-BPH97

    5l
    150,00€
  • Reagecon 2 NTU Ratio Turbidity Standard


    Reagecon 2 NTU Ratio Turbidity Standard is a suspension of polymer microspheres. The product has guaranteed stability throughout its entire shelf life; even after opening the bottle. - Reagecon’s Turbidity Standards for ratio instruments are composed of suspended polymer microspheres; with well defined spherical shape. - Designed and formulated to overcome the adverse safety; accuracy and stability issues experienced with Formazin Turbidity Standards. - Traceable to NIST standard reference materials. - Manufactured to exacting specifications with an extended shelf life and stability; even after opening the bottle. - US EPA approved for drinking water turbidity. - Non-toxic and non-carcinogenic. - Reagecon also offers a range of Stabilised Formazin Turbidity Standards which are marketed under the Turbiform™ brand See More …
    Forma y color:Liquid

    Ref: 07-CRSR-2-100

    100ml
    109,00€