Titrette® Guide: Features, Use, & Models
The Titrette® bottle-top burette from BrandTech Scientific is a precise digital dispensing tool that meets Class A error limits for glass burettes according to DIN EN ISO 385, offering superior accuracy for titration tasks in laboratories, production, or fieldwork. This updated guide fact-checks the original content, fills gaps such as the missing 50 mL model and incomplete volume details, corrects minor inaccuracies like drop volume specifics for the device, and incorporates the latest product specifications as of 2025.
Key Highlights
The Titrette® is the first bottle-top burette to meet Class A error limits, matching the accuracy of traditional glass burettes for reliable quantitative analysis. Its compact, lightweight design suits labs with limited space or fieldwork, weighing under 500 grams for portability. As a digital burette, it eliminates parallax and reading errors from manual glass versions via a clear LCD display showing volumes to 0.001 mL precision up to 20 mL. Smooth-running, non-slip hand wheels enable fast filling and drop-by-drop titration with microliter control, up to 20 µL per drop for the 10 mL model. A built-in recirculation valve removes air bubbles without wasting reagent, directing flow back to the bottle. The exchangeable dosing unit allows quick disassembly for cleaning, using chemically resistant materials like borosilicate glass, PTFE, and platinum-iridium.
Introduction
Titration remains a core quantitative analysis technique for determining substance concentrations by dispensing solutions of known volume. Bottle-top burettes mount directly on reagent bottles to streamline this process, and the BrandTech Titrette® enhances efficiency with digital precision, user-friendly controls, and robust construction for reliable results in diverse settings. Unlike manual burettes, it supports seamless operation without power outlets, ideal for mobile or constrained environments.
Key Features
The Titrette® excels in modern labs through its space-saving design and high performance, fitting bottles via adapters for GL 28, 32, 38, 40, and 45 mm necks. It achieves Class A accuracy with error limits of ±0.1% for 10/25 mL models and ±0.2% for 50 mL, surpassing standard dispensers. The innovative measuring system pairs with a digital display for error-free volume tracking, automatically switching between filling (counterclockwise wheel) and dispensing (clockwise) modes. Additional functions include a pause button for interruptions, zero-reset capability, and an optional RS232 PC interface for data logging via free software. Powered by two AAA batteries lasting up to 3 years, it operates independently of external power.
Digital Precision and Accuracy
Precision defines successful titration, and the Titrette® delivers Class A standards, ensuring repeatable results within ±0.006 mL at 10 mL or better. The LCD shows dispensed volumes to three decimal places below 20 mL, eliminating meniscus interpretation issues in glass burettes. Electronics detect operational mode via wheel direction, simplifying workflows and reducing user error. Hand wheels with a 1:50 gear ratio allow rapid dispensing (up to 10 mL/s) or slow, precise drops, outperforming traditional stopcocks in control. For volumes over 20 mL, the display auto-switches to 0.01 mL increments, maintaining usability.
Volume Range and Model Options
The Titrette® accommodates varied lab needs with models in 10 mL, 25 mL, and 50 mL capacities, each optimized for specific titration scales while adhering to Class A limits. Selection depends on reagent volume and task precision; smaller models suit micro-titrations, while the 50 mL handles larger analyses efficiently. All models feature the same digital interface and controls, with display resolutions of 0.001 mL (10/25 mL) or 0.002 mL (50 mL).
| Model | Nominal Volume | Resolution (up to 20 mL) | Error Limit (% of Capacity) | Typical Drop Size |
|---|---|---|---|---|
| Titrette® 10 mL | 10 mL | 0.001 mL | ±0.1% | ~20 µL |
| Titrette® 25 mL | 25 mL | 0.001 mL | ±0.1% | ~30 µL |
| Titrette® 50 mL | 50 mL | 0.002 mL | ±0.2% | ~30 µL |
Laboratory Applications
The Titrette® supports diverse applications requiring exact liquid dispensing, from academic research to industrial quality control in pharmaceuticals, chemicals, and food testing. Its bottle-top mounting draws directly from reservoirs, reducing transfer errors versus standalone burettes. Digital tracking aids compliance in regulated environments, with optional PC integration for GLP documentation. It excels in aqueous and non-aqueous titrations, handling viscosities up to 500 mm²/s and vapor pressures to 500 mbar.
Compatibility, Chemical Handling, and Maintenance
Adapters ensure fit for common bottles (28-45 mm), with an optional PC interface for data export in CSV or XLS formats. Liquid-contact parts use inert materials: borosilicate glass cylinder, PTFE/ETFE valves, PFA/PTFE tubing, and platinum-iridium tip, compatible with acids, bases, and solvents like 1 M alcoholic KOH. Avoid extremes beyond +15°C to +40°C or high humidity (>90%).
Maintenance is lab-friendly: Use the recirculation valve to prime and purge bubbles without loss. Disassemble via bayonet lock for cleaning with water, mild detergents, or solvents; the dosing unit exchanges in seconds for repairs. Store dry at room temperature; calibrate annually per ISO 8655 if needed, though factory performance certificates confirm Class A compliance. Light-shield windows prevent photodegradation.
Drop Volume in Titration
One drop from the Titrette® measures approximately 20 µL for the 10 mL model and 30 µL for 25/50 mL models, enabling precise endpoint control. General titration droppers vary from 20-50 µL, influenced by viscosity and surface tension, but calibration ensures consistency. Compared to glass burettes, the Titrette® reduces errors through digital readout and smooth dispensing, though glass remains cost-effective for basic needs; opt for Titrette® in high-precision or repetitive tasks.
Conclusion
The Titrette® bottle-top burette provides unmatched digital precision and ease for titration, with versatile models and robust compatibility enhancing lab efficiency. Proper maintenance extends its lifespan, supporting accurate results across applications. For tailored advice or demos, consult BrandTech resources.
