Drick DRK-DT9 4-Channel Fully Automatic Potentiometric Titrator
| Brand | Drick |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic Instrument |
| Model | DRK-DT9 |
| Instrument Type | General-Purpose Potentiometric Titrator |
| Application Scope | Universal |
| Measurement Range | −2000.0 mV to +2000.0 mV |
| Titration Accuracy | ±0.1 mV, ±0.002 pH |
| Titration Resolution | 0.1 mV, 0.001 pH |
Overview
The Drick DRK-DT9 is a 4-channel fully automatic potentiometric titrator engineered for high reproducibility and operational consistency in routine and research-grade quantitative electrochemical analysis. It operates on the fundamental principle of potentiometric endpoint detection—measuring the potential difference between a reference electrode and an indicator electrode as titrant is incrementally delivered into the analyte solution. The inflection point(s) in the resulting E–V (potential vs. volume) or dE/dV curve are used to determine stoichiometric equivalence with sub-millivolt resolution. Designed for laboratories requiring parallel sample processing without cross-channel interference, the DRK-DT9 supports simultaneous titration of up to four independent samples under individually programmable methods—ideal for quality control labs performing batched acid-base, redox, precipitation, and complexometric titrations per ISO 8587, ASTM E2087, and USP .
Key Features
- Four independent titration channels with isolated fluidic paths, motor-driven burettes, and dedicated electrode holders—eliminating carryover risk and enabling true concurrent operation.
- High-stability potentiometric measurement circuitry with 24-bit analog-to-digital conversion, delivering stable readings across the full −2000.0 mV to +2000.0 mV range and pH span of −20.000 to +20.000.
- Programmable titration modes including dynamic (adaptive), fixed-volume, and Gran plot methods—supporting IUPAC-recommended equivalence point algorithms.
- Integrated temperature compensation (PT100 sensor input) and automatic calibration sequence for pH/mV electrodes prior to each run.
- Rugged industrial-grade chassis with IP20-rated enclosure, CE-marked power supply, and RS-232/USB interfaces for external device synchronization.
- Onboard method storage (≥100 user-defined protocols), real-time curve visualization, and manual override capability during active titration.
Sample Compatibility & Compliance
The DRK-DT9 accommodates standard 100–250 mL titration vessels with magnetic stirring, compatible with glass, polypropylene, and PTFE-coated electrodes—including combination pH electrodes, silver/silver chloride reference electrodes, platinum redox sensors, and ion-selective electrodes (e.g., fluoride, chloride). It meets essential requirements for GLP-compliant environments: audit-trail-enabled method execution logs, electronic signature support (via optional software module), and data immutability safeguards. While not pre-certified to FDA 21 CFR Part 11 out-of-the-box, its firmware architecture supports time-stamped, user-identified result export (CSV/PDF) and is deployable within validated workflows aligned with ISO/IEC 17025 and GMP Annex 11 frameworks.
Software & Data Management
The instrument ships with Drick TitrSoft v3.x—a Windows-based control suite supporting method creation, real-time multi-channel monitoring, automatic report generation (including titration curves, derivative plots, and statistical summaries), and raw data export in ASCII-compliant formats. All measurement events—including reagent delivery timestamps, electrode potential drift, and endpoint confirmation flags—are recorded with microsecond precision. Data files include embedded metadata (operator ID, date/time, environmental temperature, calibration history), facilitating traceability in regulated environments. Optional cloud-sync add-ons enable secure remote access and centralized instrument fleet management for multi-site laboratories.
Applications
- Pharmaceutical QC: Assay of active pharmaceutical ingredients (APIs) via non-aqueous acidimetry (e.g., amine quantification in USP ).
- Foods & Beverages: Total acidity (TA), free SO₂, and chloride content determination per AOAC 941.03 and ISO 14111.
- Environmental Testing: Alkalinity profiling, cyanide titration (ASTM D4373), and hardness analysis (EDTA complexometry) in wastewater and drinking water.
- Chemical Manufacturing: Concentration verification of NaOH, HCl, H₂SO₄, and KMnO₄ stock solutions; catalyst residue quantification in polymer synthesis.
- Academic Research: Multi-step titration kinetics studies, pKa determination of weak electrolytes, and validation of novel ion-selective membrane responses.
FAQ
What electrode types are supported?
The DRK-DT9 accepts all standard BNC-terminated potentiometric electrodes, including pH combination electrodes, Ag/AgCl double-junction references, Pt wire redox sensors, and ISEs with internal reference systems.
Can the system be integrated into a LIMS environment?
Yes—via configurable ASCII output over RS-232 or TCP/IP (with optional network adapter), enabling direct ingestion into LIMS platforms compliant with ASTM E1578 and ISO 15143-1.
Is method validation documentation available?
Drick provides IQ/OQ protocol templates and performance qualification checklists aligned with ISO 8655-7 for burette accuracy verification and IEC 61000-4 electromagnetic compatibility testing reports.
What maintenance is required for long-term reliability?
Routine maintenance includes quarterly verification of burette seal integrity, annual recalibration of the analog front-end using NIST-traceable mV standards, and biannual cleaning of electrode ports and stirrer mechanisms.
Does the instrument support non-aqueous titrations?
Yes—the DRK-DT9’s wide voltage range (±2000 mV) and adaptive dosing logic accommodate common non-aqueous media such as glacial acetic acid, dimethylformamide, and acetone, with solvent-specific endpoint recognition algorithms.
