LabTech MultiVap-12 Automated Quantitative Parallel Concentrator

Overview

The LabTech MultiVap-12 Automated Quantitative Parallel Concentrator is an engineered solution for high-throughput, reproducible solvent removal in analytical sample preparation workflows. It employs controlled nitrogen gas flow combined with precise optical endpoint detection to achieve automated, volume-specific evaporation across up to twelve independent sample positions. Unlike conventional rotary evaporators or manual nitrogen blow-down systems, the MultiVap-12 eliminates operator-dependent variability by replacing visual estimation with a non-contact, invisible-light optical sensor system—ensuring consistent final volumes regardless of sample matrix color, turbidity, or background lighting conditions. This principle enables robust performance in environmental, pharmaceutical, food safety, and clinical toxicology labs where regulatory compliance and method transferability are critical.

Key Features

• Quantitative Endpoint Detection: Proprietary invisible-light optical sensing technology detects meniscus position without interference from chromophores or suspended solids—enabling accurate termination at user-defined final volumes (e.g., 1.0 mL, 0.5 mL) across diverse matrices including humic-rich water extracts, blood plasma digests, and pesticide-spiked vegetable homogenates.
• Parallel & Independent Channel Operation: Twelve individually addressable ports allow simultaneous processing of heterogeneous samples under distinct protocols—each channel supports independent gas flow rate, pressure ramp profile, and endpoint volume setting.
• Vortex Nitrogen Delivery System: Adjustable nozzle geometry and rotational gas dispersion optimize solvent surface agitation while minimizing splashing and cross-contamination—particularly effective for low-boiling solvents (e.g., dichloromethane, ethyl acetate) and viscous biological extracts.
• Modular Vessel Compatibility: Accepts standard 50 mL and 200 mL borosilicate glass concentrator tubes in the same run—eliminating workflow bottlenecks associated with vessel size transitions and enabling direct transfer from extraction to concentration without intermediate transfers.
• Integrated Safety Architecture: Dual redundant sensors monitor chamber water level and nitrogen supply pressure; automatic shutdown occurs upon deviation beyond preconfigured thresholds. Physical interlocks prevent operation with open front access panels or misaligned tube holders.
• Touchscreen Control Interface: 7-inch capacitive display with intuitive icon-based navigation supports protocol creation, real-time status visualization (gas flow, elapsed time, active channel), and export of run logs in CSV format for traceability.

Sample Compatibility & Compliance

The MultiVap-12 accommodates a broad range of sample types—including aqueous, organic, and mixed-phase extracts—without requiring matrix-specific calibration. Its optical detection system remains unaffected by absorbance in the visible spectrum, making it suitable for dark-colored environmental sediments, melanin-rich tissue digests, and chlorophyll-dense plant extracts. The instrument meets essential design criteria aligned with ISO/IEC 17025:2017 for testing and calibration laboratories and supports implementation of Good Laboratory Practice (GLP) and current Good Manufacturing Practice (cGMP) requirements. When deployed with validated software configurations, it fulfills data integrity expectations under FDA 21 CFR Part 11, including electronic signature capability, audit trail logging, and user-access controls.

Software & Data Management

The embedded firmware provides local storage of up to 1,000 completed run records, each containing timestamped metadata: start/end times, final volume per channel, average nitrogen pressure, and any triggered alarms. Export functionality supports USB flash drive transfer of raw logs compatible with laboratory information management systems (LIMS) and electronic lab notebooks (ELN). Optional Ethernet connectivity enables remote monitoring via secure HTTP(S) interface—allowing integration into centralized instrument management platforms. All parameter changes and endpoint events are recorded with user ID, timestamp, and contextual reason codes to satisfy audit readiness requirements.

Applications

• Residue analysis in food and agricultural commodities (e.g., multi-residue pesticide methods per AOAC 2007.01 and EN 15662)
• Pre-concentration of trace metals and organic pollutants in wastewater, soil leachates, and drinking water per EPA Methods 525.3, 8270, and ISO 17294-2
• Sample cleanup prior to LC-MS/MS analysis in clinical toxicology and doping control laboratories
• High-throughput preparation of standards and QC materials for calibration curve generation
• Reduction of solvent volume in SPE and QuEChERS extracts prior to instrumental injection

FAQ

Does the MultiVap-12 require external vacuum or chiller connections?
No—the system operates exclusively with regulated nitrogen or compressed air; no vacuum pump or recirculating chiller is needed.
Can I validate the optical endpoint detection for my specific matrix?
Yes—users may perform method-specific verification using gravimetric checks or certified reference standards; the system allows saving validation parameters as custom profiles.
Is the touchscreen interface configurable for multi-language operation?
Yes—English, Spanish, French, German, and Simplified Chinese language options are preloaded and selectable via system settings.
What maintenance is required for long-term reliability?
Routine cleaning of nitrogen nozzles and optical sensor windows is recommended after every 200 runs; no consumable parts require scheduled replacement within the first 5 years of typical use.
How does the MultiVap-12 support regulatory audits?
All operational events—including user logins, method edits, run executions, and alarm triggers—are logged with immutable timestamps and stored locally for minimum 12 months; exportable logs meet ALCOA+ data integrity principles.