Schott Titroline KF Trace M1 Karl Fischer Moisture Analyzer
| Origin | Shanghai, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China-made) |
| Model | Titroline KF Trace M1 |
| Price | ¥73,500 |
| Moisture Range | 10 µg – 100 mg H₂O (1 ppm – 100%) |
| Accuracy | 0.1 µg |
| Precision | ±3 µg (10–1000 µg), ±0.3% (>1 mg) |
| Max. Titration Rate | ~2 mg/min |
| Statistical Functions | Mean, SD, RSD |
| Re-calculation | Yes (after re-entry of sample mass/volume) |
| Auto-Start | Yes (post-sample addition) |
| Blank Titration | Automatic initiation |
| Output Units | %, ppm, mg, mg/L, mg/pc, µg |
| Titration Stand | TMKF (integrated aspiration/dispense pump) |
| Compliance | DIN 12650 Part 5, EN ISO 8655-3 |
| Display | 8-line, 64×128-pixel backlit LCD with real-time titration curve |
Overview
The Schott Titroline KF Trace M1 Karl Fischer Moisture Analyzer is a high-sensitivity coulometric and volumetric hybrid-compatible instrument engineered for trace-level water quantification in demanding analytical environments. Designed and validated by SCHOTT AG—drawing upon over six decades of electrochemical instrumentation expertise—the system implements the classical Karl Fischer (KF) titration principle based on the stoichiometric reaction between iodine, sulfur dioxide, water, and a base in anhydrous methanol or alternative solvents. The Titroline KF Trace M1 operates in volumetric mode by controlled delivery of standardized KF reagent via a precision piston burette, enabling accurate determination of water content across an exceptionally wide dynamic range—from 10 µg to 100 mg H₂O (equivalent to 1 ppm to 100% w/w). Its architecture supports both direct titration of soluble samples and indirect analysis via coupling with a KF oven (e.g., Schott KF Oven 3000 series), making it suitable for solids, viscous liquids, and chemically reactive matrices—including aldehydes and ketones—where side reactions necessitate thermal release prior to titration.
Key Features
- Integrated TMKF titration stand with dual-function peristaltic pump: enables fully automated reagent dosing, solvent aspiration, and waste disposal under sealed conditions—minimizing atmospheric moisture ingress and operator intervention.
- Real-time 8-line graphical LCD (64 × 128 pixels, adjustable backlight): displays live titration curves, equivalence point detection, drift compensation, and multi-parameter status (e.g., mV, volume consumed, water content, endpoint stability) simultaneously.
- Pre-loaded method library: 10 user-configurable methods stored internally—including sample analysis, blank titration, and solvent calibration—each supporting independent settings for titration speed, endpoint criteria, drift threshold, and post-titration delay.
- Auto-start functionality: initiates titration immediately upon confirmation of sample introduction, reducing procedural variability and improving throughput consistency.
- Comprehensive statistical engine: calculates mean, standard deviation (SD), relative standard deviation (RSD), and confidence intervals across replicate determinations; supports reprocessing using revised sample mass or titrant volume inputs without re-running the assay.
- GLP-compliant reporting: generates timestamped, audit-ready printouts with full metadata—including method ID, operator name, environmental drift value, reagent batch, and raw titration curve snapshot—meeting core requirements of ISO/IEC 17025 and FDA 21 CFR Part 11 when paired with optional network-enabled printers.
Sample Compatibility & Compliance
The Titroline KF Trace M1 accommodates diverse sample types through flexible interface options: direct injection via syringe or autosampler port, headspace analysis using gas-tight vials, and thermally assisted measurement via external KF heating ovens. It is validated for use with aldehyde- and ketone-containing matrices—leveraging optimized reagent formulations (e.g., KF Composite Reagent Type C) and adaptive endpoint algorithms that suppress interference from enolization or hemiketal formation. Instrument hardware and fluidic design conform to DIN 12650 Part 5 (requirements for KF titrators) and EN ISO 8655-3 (piston burettes), ensuring metrological traceability to national standards. All electronic components undergo EMC testing per IEC 61326-1, and the unit carries CE marking for laboratory instrumentation within the EU regulatory framework.
Software & Data Management
While the Titroline KF Trace M1 operates as a standalone benchtop analyzer, it supports bidirectional RS-232 communication for integration into centralized LIMS or ELN platforms. Optional PS/2 keyboard connectivity simplifies alphanumeric entry during method setup or sample annotation. All generated results—including raw titration data, curve coordinates, and statistical summaries—are exportable in ASCII format for offline validation or trend analysis. The internal memory retains up to 200 complete assay records with full GLP metadata, and all data entries are immutable post-acquisition—supporting integrity verification during internal audits or regulatory inspections under GMP/GLP guidelines.
Applications
- Pharmaceutical quality control: residual moisture testing of lyophilized APIs, excipients, and final dosage forms per USP <921> and Ph. Eur. 2.5.12.
- Polymer & coating manufacturing: water content verification in polyamide, polyurethane, and epoxy resins prior to curing—critical for preventing void formation and adhesion failure.
- Electronics materials: ultra-trace moisture quantification in solder pastes, encapsulants, and battery electrolyte solvents where <10 ppm H₂O impacts electrochemical stability.
- Fuel and lubricant analysis: compliance monitoring per ASTM D6304 and ISO 12937 for aviation turbine fuels and synthetic ester-based lubricants.
- Food ingredient certification: verification of low-moisture specifications in powdered dairy, starch derivatives, and hygroscopic flavor carriers.
FAQ
Is the Titroline KF Trace M1 compatible with coulometric KF reagents?
No—it is configured exclusively for volumetric KF titration. Coulometric operation requires separate instrumentation (e.g., Schott Titroline KF Coulometer series).
Can the instrument be calibrated using certified water standards?
Yes. Certified standard solutions (e.g., 1.00 ± 0.02 mg H₂O/mL in dry methanol) are recommended for daily system suitability verification per USP <921>.
Does the TMKF titration stand require routine maintenance beyond pump tubing replacement?
Routine maintenance includes quarterly verification of burette sealing integrity, annual piston calibration using certified weights, and biannual replacement of desiccant in the reagent reservoir drying tube.
How is drift compensation handled during low-level measurements?
The system continuously monitors background current drift in real time and applies dynamic correction to the calculated water mass—ensuring accuracy down to 10 µg even during extended analyses.
Is method transfer possible between Titroline KF Trace M1 units?
Yes. Method parameters—including endpoint slope, delay time, and reagent titer—are exportable/importable via RS-232, enabling consistent cross-site implementation in multi-laboratory networks.
