Tongxintianbo ALSP-02P Automated Liquid Sample Processing Workstation

Overview

The Tongxintianbo ALSP-02P Automated Liquid Sample Processing Workstation is an engineered solution for high-integrity liquid handling in analytical laboratories requiring trace-level accuracy and operational reproducibility. Built upon the proven ALSP-02/02A architecture, the ALSP-02P integrates dual-syringe pump technology with a modular, air-isolated fluid path design to support both organic and inorganic sample preparation workflows within a single platform. Its core measurement principle relies on gravimetrically calibrated positive-displacement syringe actuation, coupled with real-time pressure feedback and dynamic compensation algorithms to correct for surface tension, viscosity, and vapor pressure effects—critical for accurate dilution of volatile organics (e.g., solvents for GC-MS) and ionic aqueous standards (e.g., for ICP-MS calibration). Designed for compliance-critical environments, the system enables fully traceable, auditable liquid handling sequences—from stock solution dispensing and serial dilution to final volumetric transfer and vial sealing—without manual intervention.

Key Features

• Dual independent syringe pumps with selectable needle configurations (e.g., stainless steel for acids, PTFE-lined for organics), enabling simultaneous or sequential processing of chemically incompatible matrices
• Air isolation barrier technology that physically separates mother liquor and diluted aliquots during aspiration/dispense cycles, minimizing carryover and diffusion-induced concentration drift
• Active drip suppression system utilizing real-time pressure equilibrium control at the tip interface, reducing residual droplet formation by >92% compared to conventional positive-displacement systems
• Fingerprint-authenticated access control with role-based permissions (operator, supervisor, administrator), supporting 21 CFR Part 11-compliant user accountability and session logging
• Integrated exhaust absorption module with recirculating airflow design, compliant with laboratory ventilation best practices for low-emission handling of VOCs and corrosive vapors
• One-click system recovery function that restores mechanical coordinates, fluid path priming status, and software state without recalibration or hardware reset
• Customizable rack mapping interface allowing users to define non-standard tube layouts (e.g., irregular spacing, mixed vial sizes) and assign positional metadata for LIMS integration

Sample Compatibility & Compliance

The ALSP-02P accommodates vials ranging from 2 mL microcentrifuge tubes to 100 mL volumetric flasks, with automatic detection of tube height and diameter via optical sensing. It supports ISO/IEC 17025-aligned validation protocols—including precision, accuracy, linearity, and carryover testing—across its full 10 µL–100 mL range. The PTFE fluidic pathway ensures chemical resistance to strong acids (HNO₃, HCl), bases (NaOH), and organic solvents (methanol, acetonitrile, chloroform), meeting ASTM D5191 and USP requirements for automated liquid handlers used in regulated QC labs. Exhaust absorption performance complies with EN 14175-3 for fume hood equivalence in low-flow applications. All firmware logs include timestamps, operator ID, method version, and raw sensor data for GLP/GMP audit readiness.

Software & Data Management

Controlled via Windows-native application (compatible with Windows 10/11 LTSB editions), the ALSP-02P software provides method-driven workflow automation with editable SOP templates. Each dilution sequence stores full metadata: source concentration, target concentration, final volume, diluent type, compensation coefficients (user-defined per analyte/matrix), and real-time pressure/temperature readings. Audit trails are immutable and exportable as CSV or PDF with digital signature support. Wi-Fi connectivity (IEEE 802.11n, up to 100 m line-of-sight) enables remote monitoring and method push from centralized lab informatics servers. Integration with major LIMS platforms (e.g., LabVantage, Thermo Fisher SampleManager) is supported via ASTM E1384-compliant HL7 and XML-RPC interfaces.

Applications

• Multi-element calibration standard preparation for ICP-MS and ICP-OES, including isotopic spike addition and matrix-matched dilutions
• GC and LC method development workflows involving internal standard spiking, solvent exchange, and gradient-compatible stock solution generation
• Pharmaceutical QC batch release testing per USP , including assay standard dilution series and placebo blank preparation
• Environmental testing labs performing EPA Method 200.8/6020B sample spiking and calibration curve generation under ISO 17025 scope
• Reference material certification where gravimetric uncertainty budgets require documented pipetting repeatability and environmental compensation

FAQ

Does the ALSP-02P support ISO/IEC 17025 method validation documentation?
Yes—the system generates complete validation reports including precision (n=6 replicates), accuracy (recovery % vs. certified reference materials), linearity (R² ≥ 0.999 over 5 orders of magnitude), and carryover (<0.05% for high-concentration spikes).
Can the instrument be integrated into an existing LIMS without custom coding?
It supports out-of-the-box integration via ASTM E1384-compliant HL7 message exchange and RESTful API endpoints for method upload, run initiation, and result retrieval.
What maintenance is required for long-term accuracy stability?
Syringe calibration verification every 3 months using NIST-traceable gravimetric standards; PTFE tubing replacement every 12 months or after 5,000 cycles; annual factory recalibration recommended for GLP audits.
Is the exhaust absorption module compatible with halogenated solvents?
Yes—the activated carbon + potassium permanganate composite filter is rated for continuous use with chlorinated solvents (e.g., chloroform, DCM) up to 10 ppmv average concentration.
How does the air isolation barrier affect dilution accuracy for volatile compounds?
By eliminating headspace equilibration between mother and daughter vials during transfer, it reduces concentration deviation from evaporation to <±0.1% for ethanol/water mixtures at 25°C—verified per ISO 8655-6 Annex C.