pH testers are an economical option to perform an alkalinity measurement. The end point can be determined with a pH meter by performing a manual titration.
A variety of benchtop meters are available including those with a large, color LCD that can log and display graphs in real time. The graphing function is useful in seeing the equivalence point of a alkalinity titration.
Hanna Instruments offers a variety of titration systems.
Potentiometric titration systems include single and dual channel options along with version with a single or dual dosing pump. These systems are the most accurate in dosing with a 40,000 step dosing pump that can deliver microliters of titrant.
The mini-titrator is a Hanna Instruments innovation to bring the accuracy and precision of our potentiometric titration systems to the users that are performing manual titration with a pH meter. The mini-titrators use a syringe pump to accurately dose the titrant. The titrant is pre-standardized so no specialized glassware or analytical balances are need to make the titrant.
Solutions required for performing alkalinity titrations include calibration buffers and maintenance solutions used for cleaning and storage.
Accessories include magnetic stirrers that should be used while performing a manual titration to ensure adequate mixing and solution homogeneity. Other accessories include syringe and tubing for titration systems.
Chemical Test Kits
A variety of chemical test kits are available for measuring alkalinity from single parameter test kits to multi-parameter test kits for water quality, environment monitoring, and boilers and cooling towers.
A Checker HC, like a chemical test kit, are reagent based design with a color change to indicate the endpoint. The handheld colorimeters use the Beer-Lambert principle to determine the color change. The color change is measured by a photoelectric cell which is more accurate than subjective visual interpretation. Checker HC for alkalinity include those for marine use and display results in mg/L CaCO3 or dKh.
Electrodes & Probes
A wide range of pH electrodes are available for measuring pH. The pH electrodes include ones supplied with our mini-trators for alkalinity of water and others include versions made specifically for non-aqueous titrations.
The probes designed for non-aqueous titrations are made with chemically resistant materials to withstand harsh chemicals. They also use a double junction design that allows the electrolyte to be replaced for example with lithium chloride dissolved in the solvent that is in the sample matrix.
Reagents include the reagents used with chemical test kits and photometers. The titrants and solutions for titration are also included in this category. All titrants are pre-standardized and sealed to maintain the value of the solution.
Benchtop photometers are multi-parameter photometers for water treatment, wastewater treatment, aquaculture, and pools and spas. Each benchtop photometer has the methods specific to the industry pre-programmed into the meter. Spectrophotometers, like benchtop photometers, have pre-programmed methods for alkalinity but also allow users to develop custom methods.