Are You in the Market for a Titrator?

While titration is a basic analytical method, titrators are specialized instruments that perform titrations with minimal operator intervention. They can thus minimize errors, improve throughput, and facilitate documentation. There are two major titrator types: potentiometric acid-based designs and Karl Fischer titrators.

Top 6 Questions You Should Ask When Buying a Titrator

  1. How precise is the titrant delivery system? Is the titrant delivery system certified for accuracy?
  2. Can additional titrants be used without having to purge burettes?
  3. What information is included in the titrator’s display and reports?
  4. Is the titrator limited to proprietary electrodes? What is the replacement cost for electrodes?
  5. Is the software field upgradeable?
  6. What is the service and repair policy?
    • Is on-site support offered?
    • If something goes wrong with the meter, can it be fixed locally?
    • What is the general turnaround time for repair?

LabManager Magazine Titrator Survey Results

Respondents are using the following titration methods in their labs:

Automated titration     57%
Manual titration           43%



Respondents are using the following types of titrators in their labs:                           

Potentiometric   57%
Karl Fischer Coulometric       49%
Karl Fischer Volumetric 40%
Other     8%

Survey respondents are currently using the following titrator components:

Autosampler 32%
Karl Fischer oven   21%
Evaporator 10%
Homogenizer    6%
Other  16%

Survey respondents currently inspect their titrators with the following frequency:

Before every use     38%
Weekly                      16%
Monthly                        7%
Quarterly                    10%
Every six months        8%
Annually                      15%
Don’t know                   5%

Top ten features/factors survey respondents look for when buying a titrator

Accuracy                     100%
Reliability                     95%
Low maintenance       95%
Ease of use                  88%
Operating cost              83%
Service and support    80%
Price                               76%
Warranty                         73%
Speed                              68%
Data management        62%

Readers’ labs have encountered the following problems that affected titrations:

Misjudging the color of the indicator near the end point     40%
Leaking burette                                                                           40%
Using solutions of wrong concentration                                27%

Article courtesy of Lab Manager Magazine

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