VITLAB® genius² Bottle Top Dispenser

Overview

The VITLAB® genius² Bottle Top Dispenser is a precision-engineered manual liquid handling instrument designed for repeatable, safe, and contamination-controlled dispensing of reagents directly from standard GL-threaded bottles. Based on the proven piston-driven positive displacement principle, it delivers volumetric accuracy traceable to DIN EN ISO 8655–3 (Piston-operated burettes), ensuring compliance with international metrological standards for laboratory volumetric instruments. Unlike gravity-fed or air-displacement systems, the genius² employs a sealed ceramic-piston mechanism that eliminates vapor loss, minimizes evaporation-induced error, and maintains consistent delivery across volatile solvents, corrosive acids, and high-viscosity solutions — critical for QC labs, pharmaceutical development, and academic research environments where reproducibility and operator safety are non-negotiable.

Key Features

• Triple-Safety Fluid Path Design: Integrated reflux valve directs unused reagent back into the bottle when not dispensing; self-locking discharge valve seals automatically upon removal of the dispensing tube; and a snap-on discharge tube cap prevents drips during storage or transport.
• Chemical Resistance Engineered for Longevity: Wetted components include borosilicate glass, alumina (Al₂O₃) ceramic, ETFE, FEP, PFA, PTFE, platinum-iridium alloy, and polypropylene — collectively validated against >200 common laboratory reagents per VITLAB’s published chemical compatibility matrix (e.g., concentrated HNO₃, 50% NaOH, acetone, chloroform, DMSO).
• High-Fidelity Volume Control: Dual-scale, gear-coupled volume adjustment enables rapid, tactile locking at any setting within the 0.2–100 mL range with 0.05 mL resolution. Each unit undergoes three-point gravimetric calibration (at 10%, 50%, and 100% of nominal capacity) using Class A analytical balances under ISO 17025-accredited conditions; certificate included.
• Autoclavable Construction: Fully assembled unit withstands 121 °C / 20 min steam sterilization (EN 285) without disassembly. All polymer components meet USP Class VI biocompatibility requirements, enabling use in aseptic workflows when paired with Luer-lock sterile filters (e.g., 0.22 µm PVDF or PES membranes).
• Modular Service Architecture: Tool-free disassembly allows full access to piston, cylinder, valves, and tubing. No elastomeric seals or O-rings are used in the fluid path — eliminating swelling, compression set, and replacement cycles associated with traditional dispensers.

Sample Compatibility & Compliance

The genius² accommodates standard GL45 bottles natively and supports broader compatibility via optional adapter rings (GL25, GL28, GL32, GL38, S40). Its inert wetted materials ensure compatibility with aqueous buffers, organic solvents, oxidizing agents, and mildly aggressive bases — validated per ASTM D543 and ISO 15203. The device conforms to ISO 8655–3 for accuracy verification, meets EU Directive 2014/30/EU (EMC) and 2011/65/EU (RoHS), and supports audit readiness for GLP and GMP environments through documented calibration history and traceable uncertainty budgets.

Software & Data Management

As a fully mechanical, analog instrument, the genius² requires no firmware, drivers, or software integration. All calibration data, lot-specific tolerance reports, and material certifications are provided as printed documentation compliant with FDA 21 CFR Part 11 record retention expectations for manual instrumentation. Optional digital logbooks (PDF or CSV export) may be generated using third-party lab information management systems (LIMS) via barcode-scanned serial number lookup.

Applications

• Accurate preparation of calibration standards and reference solutions in environmental testing labs (EPA Method 500 series, ISO 11843)
• Reagent dispensing in pharmaceutical stability studies (ICH Q5C) and excipient formulation
• Controlled addition of catalysts or hazardous reagents in synthetic chemistry workflows
• Media preparation and dilution series generation in microbiology and cell culture facilities
• Quality control testing requiring volumetric repeatability per ISO/IEC 17025 clause 7.7

FAQ

Is the VITLAB® genius² certified for ISO/IEC 17025-compliant calibration?
Yes — each unit ships with a three-point gravimetric calibration certificate issued under an ISO/IEC 17025-accredited quality system, including uncertainty values per ISO/IEC 98-3 (GUM).

Can the dispenser be used with hydrofluoric acid (HF)?
No — HF etches borosilicate glass and attacks alumina ceramics. For HF applications, consult VITLAB’s specialized PFA-only dispensing systems.

What is the recommended recalibration interval?
Annual recalibration is advised for routine QC use; more frequent verification (e.g., daily or per batch) is required in regulated GxP environments per internal SOPs.

Does the device support continuous dispensing mode?
No — the genius² is a single-shot, manually actuated dispenser. Continuous flow requires motorized peristaltic or syringe pump systems.

Are replacement parts available separately?
Yes — all modular components (ceramic piston assemblies, glass cylinders, ETFE valves, PFA tubes) are stocked and sold individually with full traceability documentation.