Portable pH/ISE allow the flexibility to perform an ISE measurement in labs with limited bench space and can be stored relatively easily. Two models are available including one dedicated to the fluoride measurement while the other can accept other ISEs and has the ion charge and weight pre-programmed for the specific parameter.
Benchtop pH/ISE meters include two channel options, in which a pH probe can be connected to one channel and the fluoride ISE to the other. The benchtop meters have the ion charge and molecular weight pre-programmed for use with the fluoride ISE. The benchtop meters also have incremental methods pre-programmed including the known addition, known subtraction, analyte addition and analyte subtraction methods
Electrodes & Probes
The Fluoride ISE is available as a combination electrode with both indicating half-cell and reference half-cell. It is also available as an indicating half-cell that will be used with a separate reference half-cell. The reference half-cell with the skirted cone geometry is the preferred version to use. The gel-filled model is specifically for the dedicated fluoride portable meter.
The Fluoride ISE is available as a combination version with both indicating half-cell and reference half-cell. It is also available as an indicating half-cell that will be used with a separate reference half-cell. The reference half-cell with the skirted cone geometry is the preferred version to use. The gel-filled model is specifically for the dedicated fluoride portable meter.
Solutions for fluoride measurement include ISE standards and TISAB for calibration and measurement. The calibration standards are available with or without TISAB. The TISAB is available as TISAB II or as the concentrated TISAB III. A kit version is available that includes calibration standards with TISAB and a bottle of TISAB II to be used with the sample.
Other solutions include the CAL Check standards for verifying and, if needed, the calibration of our portable photometers. Each CAL Check standard is supplied with a Certificate of Analysis stating the accuracy and traceability of the standard.
Accessories include the replacement fluoride module for the combination ISE and magnetic stirrers for mixing. Also available are spare cuvettes and caps for the photometers and Checker HC.
Checker HC, like chemical test kits, are reagent based with a color change that correlates with concentration. The handheld colorimeters, like portable and benchtop instrumentation, use the Beer-Lambert principle to determine the color change. The change in color is not as subjective as with using the naked eye.
Single parameter portable photometers are available in two ranges. The portable photometers have a CAL Check feature that allows for performance verification, and if needed, recalibration using the CAL Check standards. The portable meters are available as a meter only or as a kit. The kit version include a rugged carrying case and CAL Check standards.
Benchtop photometers include multiparameter versions for water treatment, wastewater treatment, and water conditioning. Each photometer is customized to have the parameters used by a specific industry. All benchtop have a digital pH electrode input allowing it to be used as a traditional pH meter.
Spectrophotometers are available that have the fluoride method in several ranges pre-programmed into the meter. The spectrophotometer offers the highest precision due to the quality of the optical system that has a wavelength accuracy of +/- 1.5 nm. The spectrophotometer allows for custom methods to be used as well.
Reagents include both low and high ranges for the photometers and Checker HC. For the photometers, the reagents are available in 100 or 300 tests versions.