Xylem Analytics Blog

  • 10/2/2023
  • Dr. Andreas Eich

Use of Ubbelohde Master viscometers as a national standard in metrological institutes

National metrological institutes are responsible for the dissemination of the units of physical quantities. Known are especially the quantities mass, length and time: e.g. there are four atomic clocks in operation in Germany, at the Physikalisch-Technische Bundesanstalt in Brunswick (PTB), which provides the time standard for legal time in Germany. more

  • 8/31/2023
  • Stefan Kaus

Which electrodes can still be used for titration?

In addition to pH titration, there are a number of other types of titration, such as redox, precipitation and complexometric titration, as well as titrations with polarizable electrodes ("Dead-Stop titrations").more

  • 8/30/2023
  • Stefan Kaus

Which pH electrode do I need for my acid-base titration application?

In an ideal world, there would be only one pH electrode for all their acid-base titrations. In this ideal world, it would not matter whether the solution to be titrated was aqueous or non-aqueous, had a high or low conductivity and whether only a few ml were to be titrated in a small vessel or 250 ml in a 400 ml beaker. One electrode would fit all of these applications.more

  • 4/16/2023
  • Dr. Klaus Reithmayer

What is the pH value?

The pH value is one of the most important and most frequently measured quantities in analytical chemistry. A pH measuring instrument is always needed when the pH reading must be determined accurately. An appropriate pH meter is available in virtually every laboratory.more

  • 4/3/2023
  • Xylem Lab Solutions

pH Handbook: A guide with helpful practical tips (PDF)

In our pH handbook you will find all our expert knowledge on the subject of pH/redox. Over 100 pages you will learn practical knowledge about pH measurement and pH determination. Numerous illustrations, tables and diagrams provide clear knowledge on how to measure the pH value correctly, calibrate the pH electrode, maintain it, clean it and many other helpful tips and tricks from our experts that will make your everyday work in the laboratory and in the field easier.more