Potential Titrator TI Series
Benchtop potentiometric titrator for automated endpoint determination in acid-base, redox, and complexometric analyses with ±0.2mV accuracy and programmable burette control.
Louise Corscadden, PhD
Neuroscience · ConductScience
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The Potential Titrator TI Series is a benchtop electrochemical titration analyzer designed for quantitative determination of analyte concentrations through automated potentiometric titration. The system utilizes electrode potential measurements to detect equivalence points during titration procedures, providing precise endpoint determination for acid-base, redox, precipitation, and complexometric analyses.
Engineered for laboratory environments requiring consistent analytical performance, the instrument features a motorized burette system with programmable dispensing control and integrated electrode monitoring. The system maintains measurement stability within ±0.3mV over 3-hour periods, supporting reproducible results across extended analytical sequences. The 10 kg benchtop design accommodates standard laboratory workflows while providing the precision required for quantitative analytical chemistry applications.
How It Works
Potentiometric titration operates through measurement of electrode potential changes as titrant is added to the sample solution. The system employs a combination electrode (typically glass electrode paired with reference electrode) to monitor voltage changes that occur during the titration process. As the titrant approaches the equivalence point, rapid potential changes signal the completion of the chemical reaction, allowing precise endpoint determination.
The TI Series automates this process through programmable burette control, dispensing titrant at controlled rates while continuously monitoring electrode potential. The system's measurement circuitry maintains ±0.2mV accuracy during potential monitoring, while the motorized burette provides reproducible volume delivery. Data acquisition algorithms analyze the potential-volume relationship to identify equivalence points and calculate analyte concentrations based on stoichiometric relationships.
Temperature compensation and electrode drift correction ensure measurement stability over extended analytical runs. The system processes multiple samples sequentially, maintaining consistent analytical conditions and reducing manual intervention requirements for routine analytical workflows.
Features & Benefits
Automation Level
- semi-automated
Burette Supplementary Speed
- 55±10s(when burette is full scale)
Repeatability Titration Analysis
- 0.2%
Repeatability Accuracy
- ≤0.2mV
Stability
- ±0.3mV±1bit/3h
Sensitive of Control Titration
- ±2mV
Weight
- 12kg
External Size(W*D*H)
- 340*400*400mm
Package Size(W*D*H)
- 540*490*480mm
Brand
- ConductScience
Research Domain
- Analytical Chemistry
- Environmental Monitoring
- Food Science
- Industrial Hygiene
- Materials Science
- Pharmaceutical QC
Power/Voltage
- AC adapter, 100~240V, 50/60Hz AC input, C24V output
Weight
- 10.0 kg
Dimensions
- L: 40.0 mm
- W: 34.0 mm
- H: 40.0 mm
| Feature | This Product | Typical Alternative | Advantage |
|---|---|---|---|
| Measurement Accuracy | ±0.2mV accuracy with ±0.3mV stability over 3 hours | Entry-level systems often provide ±1-5mV accuracy with less stable baselines | Higher accuracy enables detection of subtle equivalence points in challenging analytical matrices |
| Titration Repeatability | 0.2% repeatability across analytical runs | Manual methods typically achieve 1-3% repeatability depending on operator skill | Improved repeatability reduces the number of replicate analyses needed for reliable results |
| Control Sensitivity | ±2mV control sensitivity for endpoint detection | Basic titrators may have lower sensitivity requiring larger potential changes | Higher sensitivity enables precise endpoint detection in systems with gradual potential transitions |
| Power Requirements | Universal AC input (100-240V) with 24V DC output | Some systems require specific voltage inputs or external power conditioning | Universal power supply simplifies installation in international laboratory environments |
| Physical Footprint | Compact 34×40×40cm benchtop design weighing 10kg | Larger systems may require dedicated bench space or floor mounting | Space-efficient design maximizes available laboratory workspace while maintaining analytical capability |
The TI Series combines analytical-grade measurement accuracy with compact benchtop operation and universal power compatibility. The system's high repeatability and control sensitivity support demanding quantitative applications while fitting standard laboratory workflows.
Practical Tips
Verify electrode calibration using fresh buffer solutions before each analytical session.
Why: Electrode drift over time can compromise measurement accuracy and endpoint detection reliability.
Clean electrodes with appropriate solvents after each use and store in recommended storage solutions.
Why: Proper electrode maintenance prevents contamination and extends electrode lifespan for consistent performance.
Allow the system to reach thermal equilibrium for 30 minutes before critical measurements.
Why: Temperature stability ensures consistent electrode response and eliminates thermal drift effects on results.
Monitor the potential-volume curve during titration to verify smooth electrode response without irregular fluctuations.
Why: Irregular potential behavior may indicate electrode problems or sample matrix interference affecting result validity.
If endpoints appear poorly defined, check electrode condition and consider diluting the sample or adjusting titrant concentration.
Why: Poor endpoint definition often results from electrode fouling or inappropriate concentration ratios between sample and titrant.
Use appropriate fume extraction when titrating volatile or hazardous samples to prevent vapor exposure.
Why: Chemical vapors from samples or titrants may pose health risks and can interfere with electrode performance.
Verify burette accuracy periodically using gravimetric methods with distilled water dispensing.
Why: Burette calibration drift affects titrant volume accuracy and directly impacts calculated analyte concentrations.
Setup Guide
What’s in the Box
- TI Series Titrator main unit
- AC power adapter (100-240V input)
- Burette assembly (typical)
- Combination electrode with cable (typical)
- Reference electrode filling solution (typical)
- User manual and software documentation (typical)
- Calibration certificate (typical)
Warranty
ConductScience provides a standard one-year manufacturer warranty covering defects in materials and workmanship. Technical support includes method development guidance and troubleshooting assistance for optimal analytical performance.
Compliance
What types of titrations can this system perform?
The system performs potentiometric titrations including acid-base, redox, precipitation, and complexometric analyses. Endpoint detection relies on electrode potential changes rather than visual indicators, suitable for colored or turbid solutions.
What electrode maintenance is required?
Regular electrode cleaning and storage in appropriate solutions is necessary. Reference electrodes require periodic refilling with electrolyte solution, and calibration should be verified before each analytical session.
Can the system handle multiple samples automatically?
The system can be programmed for sequential analysis of multiple samples using the same titration method. Sample changing requires manual intervention, but titration parameters remain consistent across runs.
What data output formats are available?
Consult product datasheet for specific data export capabilities and file formats. Typical titration systems provide tabular data including volume-potential curves and calculated results.
How does temperature affect measurements?
Temperature influences electrode response and solution properties. The system likely includes temperature compensation features, but specific temperature range and correction methods should be verified in the technical specifications.
What is the maximum sample volume capacity?
Sample volume capacity depends on the titration vessel used with the system. Consult product datasheet for recommended vessel sizes and maximum working volumes.
Can custom titration methods be programmed?
The system appears to offer programmable parameters for different analytical methods. Specific programming capabilities and method storage options should be confirmed in the technical documentation.
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