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A Practical Guide for Life Scientists pH and Conductivity
Biological systems are so sensitive that even seemingly insignificant changes in their environment can significantly alter their behavior and impact your results, and consequently your research.
In every step of life science research, precise, accurate and reliable tests and measurements have to be performed. pH value and conductivity of sample and reagents, despite being simple parameters, are essential to achieve accurate, reproducible results.
Our Life Science pH Guide helps you to accurately control pH in your samples and reagents. The Life Science pH Guide gives a 360° view with in-depth descriptions of:
Dealing with small, TRIS- or protein-containing samples? Check out our free Application Notes providing useful tips on how to measure pH in such samples.
Make your day-to-day calibration and measurements easy with the pH Tips & Tricks in Life Science poster. Get a copy for your lab now!
Controlling pH and conductivity in your samples and reagents is essential to achieve accurate, reproducible results. Biological systems are so sensitive that even seemingly insignificant changes in their environment can significantly alter their behavior and change your results.
At METTLER TOLEDO we understand the importance of controlling variability in your experiments and have set the standard for precision measurement for more than 65 years. For high throughput assays, micro-volumes, challenging chemistry and regulatory compliance, with a quality meter, the right sensor and good technique, your measuring system can deliver extraordinary accuracy and precision. METTLER TOLEDO offers a wide range of quality pH meters and superior sensor technology, so whatever your measurement challenge, we have the tools to meet your needs.
Table of contents:
1. The Cycle of Life Science
1.1 Precision from Scientific Research to Manufacturing
1.2 Precise Measurements Require Planning
2. Meter Selection
2.1 Does Your pH Meter Meet Your Need?
2.2 Typical Requirements and Solutions – pH Meters 2.3 Typical Requirements – Conductivity Meters
2.4 Special Requirements - Ultra-pure Water
2.5 Typical Solutions – Conductivity Meters
3. pH Electrode Selection
3.1 Electrode Selection and Handling
3.2 Different Kinds of Junctions
3.3 Reference Systems and Electrolytes
3.4 Types of Membrane Glass and Membrane Shapes 3.5 pH Electrodes for Specific Applications
3.6 Measuring Small Samples
4. Conductivity Sensor Selection
4.1 Selecting the Right Sensor
4.2 Materials of Conductivity Sensors
5. Care and Measurement Technique
5.1 pH Electrode Maintenance
5.2 pH Electrode Storage
5.3 pH Electrode Cleaning
5.4 pH Electrode Regeneration and Lifetime
5.5 Measuring pH – Temperature is a Critical Component 5.6 Contamination Control of pH Electrodes
5.7 Some Tips for Conductivity Measurements 5.8 Three-stage Method for Ultra-pure Water 5.9 Intelligent Sensor Management
5.10 Good Electrochemistry PracticeTM (GEP)
6. Our Solutions
6.1 pH and Conductivity Kits for Life Science Applications
6.2 Specilialized Sensors for Life Science Applications