Using purified water in the lab leads to reliable, accurate results. By using purified water, you’re ensuring your clinical applications are a success. However, Water Impurities can negatively impact the accuracy of an application and make your results unreliable. Water is such a good solvent it naturally holds these substances. Pure water is water that has been processed to remove any impurities it contains. Researching effective new ways to prevent cardiovascular disease at the University of Columbia.Cross Infection Control: Pure and Simple.Unlocking the secrets of the Antarctic with the aid of ultrapure water.Applied New Technologies Department Improves ICP, IC & HPLC Sample Turnaround Times with PURELAB®.ELGA LabWater and Beckman Coulter Join Forces.Zentrale Reinstwasser-Aufbereitung für Analyser.Sichere Reinstwasserversorgung für präzise Produkttests.
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MEDICA® Pro selected for Siemens ADVIA® analyzers at City General Hospital.Importance of ultrapure Type 1+ water for the development of generic medicines.Fondazione Telethon Continues to Choose ELGA Labwater as a Trusted Partner.ELGA helps immuneserology labs maximize uptime.DASA: The biggest medical diagnostics company in Brazil.Critital Tests Benefit from PURELAB® Option Reliable Pure Water.Lifebrain Group chooses ELGA as water partner for new modern 24/7 PCR-COVID-19 laboratory in Vienna, Austria.LS Scientific & ELGA deliver UltraPure water to the NAFDAC Laboratory.Argenta chooses DKSH New Zealand to deliver Ultrapure water in Animal Pharma.Beam Me Up, Scotty: PURELAB® Option Q Delivers Essential Ultra Pure Water.Abbott Diagnostics chooses ELGA MEDICA systems in South Asia.Hochleistungsflüssigkeitschromatographie (HPLC).With the InLab Pure Pro-ISM and InLab Pure sensors, the measurement of purified water samples is simplified and the results are more precise compared to measurements with standard pH electrodes. METTLER TOLEDO offers two electrodes ideally suited to samples with low ionic concentration. One way to mitigate the challenges associated with measurement of pure water is to use a specialty electrode. To minimize this effect, METTLER TOLEDO recommends pH readings in a flow-through cell. Pure water has a pH value of 7.00 at 25 ✬ however, samples are especially prone to CO 2 absorption from the atmosphere, which alters the pH from the expected value of 7.00 toward 5.20 due to carbonic acid formation. The measurement of pH in pure water samples requires special attention due to their low ionic nature (conductivity of 100 μS/cm). Water purity is an important parameter in a number of industries and sectors, including pharma, food and beverage, life science, power generation and many others – which all require pure water for day-to-day laboratory testing and activities. Hence, to address this concern, the American Society for Testing and Materials (ASTM) describes the pH measurement of water and low-ion water samples in the D1293 and D5464 standards. The pH of water serves as a proxy for its purity, revealing the presence of soluble trace minerals and indicating the likelihood that the water will cause corrosion, can sustain aquatic life or is safe to drink. Why are pH measurements of pure water useful? With recommendations for the best-suited sensors and tips and tricks on best measurement practice, as well as correct electrode maintenance, these documents will help you to obtain reliable results and prolong sensor life. In order to support pH analysis of pure water samples, METTER TOLEDO offers an Application Note and a White Paper. Specialized sensors, such as InLab Pure Pro-ISM or InLab Pure, are required to address the technical aspects of pH measurement of pure water with respect to accuracy, precision and response time. PH measurements with a typical sensor membrane, which has low sensitivity to hydrogen ions, result in compromised accuracy and variable readings. The type of glass membrane, the shape of the glass tip, and the type of junction are all factors that play an important role in the suitability of a sensor to the application. Successful measurements depend on the choice of sensor.
This can ultimately cause drift in response time and inaccurate, irreproducible results. Careful measurement of the pH of pure water samples is critical due to their low conductivity, which can lead to fluctuations in the liquid junction potential of the pH electrode system.