DLAB dTrite Electronic Titrator
| Brand | DLAB |
|---|---|
| Origin | Beijing, China |
| Model | dTrite |
| Dispensing Range | 0.01–99.99 mL |
| Max Single Dispense | 10 mL |
| Min Single Dispense | 10 µL |
| Accuracy | ±0.2% at 0 mL (R), CV = 0.07% |
| Control Interface | USB-enabled remote operation with PC software |
| Stirring Integration | External magnetic stirrer compatible |
| Dispense Rate Adjustment | 16-step programmable speed control |
| Operating Temperature | 15–40 °C |
| Compliance | ISO 8655 |
Overview
The DLAB dTrite Electronic Titrator is a precision-engineered digital titration system designed for reproducible, operator-independent volumetric delivery in analytical chemistry workflows. Unlike manual or semi-automated burettes, the dTrite employs a microstepping motor-driven syringe pump architecture, operating on positive displacement principles compliant with ISO 8655 standards for piston-type liquid handling devices. Its core function is to deliver defined volumes of titrant with high repeatability and traceable accuracy across a broad dynamic range—from microliter-level additions (10 µL) to multi-milliliter increments (up to 10 mL per step)—within an overall dispensing span of 0.01–99.99 mL. The system integrates seamlessly with external magnetic stirrers to maintain homogeneous reaction conditions during endpoint detection, supporting both potentiometric and visual titration protocols. Engineered for routine QC laboratories, academic teaching labs, and environmental testing facilities, the dTrite eliminates parallax error, minimizes operator variability, and provides audit-ready digital records—making it suitable for environments requiring GLP-compliant documentation.
Key Features
- ISO 8655-certified piston-driven dispensing mechanism ensuring metrological traceability and long-term calibration stability
- 16-step adjustable dispensing rate control, enabling optimization for slow endpoint approaches (e.g., weak acid–weak base titrations) or rapid bulk additions
- Backlit, high-contrast LCD interface with intuitive parameter navigation—supports real-time volume entry, rate selection, and program recall without PC dependency
- USB 2.0 interface for bidirectional communication: upload pre-defined titration methods, download raw dispense logs (timestamped volume, rate, duration), and synchronize with LIMS or ELN platforms
- Dual-mode operation: standalone mode for field use; PC-synchronized mode for method validation, data archiving, and electronic signature support per FDA 21 CFR Part 11 requirements
- Ergonomic design with low-noise motor actuation and tactile feedback—reduces repetitive strain during extended batch analysis sessions
Sample Compatibility & Compliance
The dTrite accommodates aqueous, alcoholic, and low-viscosity organic solutions (≤50 mPa·s) commonly used in acid–base, redox, complexometric, and precipitation titrations. It is compatible with standard borosilicate glass or PTFE-coated titration tips (not included) and supports interchangeable syringe barrels (1, 5, 10, and 25 mL options available separately). All wetted materials comply with USP Class VI biocompatibility standards. The device meets ISO 8655-2 (volumetric accuracy), ISO 8655-5 (repeatability), and ISO 8655-7 (software validation guidelines). Calibration verification reports—including gravimetric checklists and uncertainty budgets—can be generated using the included PC software, facilitating internal QA audits and external accreditation (e.g., ISO/IEC 17025).
Software & Data Management
The dTrite is supported by DLAB TitraSoft™ v3.x—a Windows-based application that enables full method lifecycle management. Users can define multi-step titration sequences (e.g., “add 0.5 mL → wait 10 s → measure pH → repeat until ΔpH < 0.02”), assign user roles with password-protected access levels, and activate electronic audit trails showing all parameter changes, dispense events, and calibration actions with timestamps and operator IDs. Export formats include CSV (for Excel analysis), PDF (for report generation), and XML (for LIMS integration). Data integrity safeguards include automatic backup on disconnect, write-protected log archives, and optional digital certificate signing for regulatory submissions.
Applications
- Standardization of NaOH, HCl, EDTA, and KMnO₄ solutions per ASTM E200 and ISO 3696
- BOD/COD determination in wastewater effluent monitoring (APHA Standard Methods 5210B & 5220D)
- Fat acidity testing in edible oils (AOCS Cd 3d-63 and ISO 660)
- Chloride quantification in drinking water (ISO 9297 and EPA Method 325.2)
- Quality control of pharmaceutical excipients (USP & Ph. Eur. general chapter <21>)
- Teaching stoichiometry and equivalence point concepts in undergraduate chemistry laboratories
FAQ
Does the dTrite support GLP-compliant electronic signatures?
Yes—TitraSoft™ supports role-based user authentication, electronic signature capture, and immutable audit trails aligned with FDA 21 CFR Part 11 Annex 11 requirements.
Can I calibrate the dTrite in-house without external service?
Yes—the instrument includes built-in gravimetric calibration routines with step-by-step prompts; certified reference weights and distilled water are required.
Is the dTrite compatible with third-party pH meters or ion-selective electrodes?
It does not integrate directly with external sensors, but its timed dispensing logic allows synchronization with external measurement systems via TTL trigger signals (optional I/O module required).
What maintenance intervals are recommended for long-term accuracy?
Syringe lubrication and O-ring inspection every 6 months; full performance verification annually or after 10,000 dispense cycles—whichever occurs first.
Are consumables such as syringes and tips supplied by DLAB?
DLAB offers OEM-certified 1–25 mL glass and polypropylene syringes, PTFE-tipped nozzles, and universal adapter kits for compatibility with common titration stands and electrode holders.
