Sanotac AP0050 Analytical High-Pressure Liquid Delivery Pump (5 mL Head, 42 MPa)

Overview

The Sanotac AP0050 Analytical High-Pressure Liquid Delivery Pump is an engineered solution for precise, stable, and reproducible solvent delivery in analytical-scale liquid chromatography (LC), preparative LC, supercritical fluid chromatography (SFC), and other high-pressure fluid handling applications. Based on dual-piston serial pumping architecture with a floating piston design, the AP0050 delivers flow rates from 0.001 to 5.000 mL/min at pressures up to 42 MPa (6,090 psi), meeting the stringent demands of modern separation science. Its operation relies on microprocessor-controlled timing, real-time solvent compressibility compensation, and multi-point flow calibration across the full dynamic range—ensuring trace-level accuracy even at sub-microliter-per-minute flow regimes. The pump is designed for integration into regulated environments; its open communication protocol supports bidirectional control via third-party chromatography data systems (CDS), facilitating compliance with GLP and GMP workflows where audit trails and system suitability verification are required.

Key Features

• Dual-piston serial pumping mechanism with floating piston design minimizes seal wear and extends service life under sustained high-pressure operation.
• Microprocessor-driven flow control with solvent compressibility compensation ensures consistent volumetric delivery across varying mobile phase compositions and temperatures.
• Multi-point flow calibration curve correction enables high accuracy (±0.1%) and exceptional repeatability (RSD ≤0.1%) over five orders of magnitude—from nanoliter- to milliliter-scale flows.
• Low-pressure pulsation (<0.1 MPa) achieved through optimized cam profile compensation and active electronic pulse suppression, critical for baseline stability in UV and mass-sensitive detection.
• Chemically inert fluid path constructed from 316L stainless steel, ruby check valves (Swiss-sourced), PTFE seals, and ceramic components ensures compatibility with aggressive solvents, acids, bases, and high-salt buffers.
• Front-panel interface features a 256×64 backlit LCD and intuitive keypad navigation; supports storage of up to 10 user-defined methods with programmable flow gradients (isocratic, linear, step, and custom composite profiles).
• Open RS232/USB communication protocol enables seamless integration with third-party CDS platforms—including Agilent ChemStation, Waters Empower, Thermo Chromeleon, and open-source Python-based control environments.

Sample Compatibility & Compliance

The AP0050 is compatible with a broad spectrum of mobile phases used in HPLC, UHPLC, SFC, and LC-MS applications—including aqueous buffers, acetonitrile, methanol, THF, dichloromethane, CO₂-based fluids, and corrosive additives (e.g., TFA, HFIP). Its wetted materials meet USP Class VI biocompatibility requirements and are resistant to leaching per ISO 10993-12 guidelines. While not pre-certified to FDA 21 CFR Part 11 out-of-the-box, the pump’s deterministic control logic, non-volatile method storage, and timestamped event logging (when integrated with compliant CDS software) support validation under GxP frameworks. It conforms to IEC 61010-1 for laboratory electrical safety and EMC Directive 2014/30/EU.

Software & Data Management

The AP0050 operates independently via its embedded firmware or as a peripheral under external workstation control. Its ASCII-based command set allows direct scripting for automated method sequencing, system suitability testing, and error-state interrogation. When paired with validated chromatography data systems, it supports electronic signatures, change control logs, and audit trail generation—enabling alignment with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available). Firmware updates are delivered via USB stick and include version-locking to ensure traceability during IQ/OQ/PQ qualification.

Applications

• Analytical and semi-preparative reversed-phase, HILIC, and ion-exchange chromatography
• Method development for peptide mapping, monoclonal antibody characterization, and oligonucleotide analysis
• Supercritical fluid extraction (SFE) and SFC chiral separations
• Microfluidic platform priming and reagent delivery in lab-on-chip systems
• Calibration of flow sensors and pressure transducers in metrology laboratories
• Controlled infusion in pharmacokinetic and dissolution testing rigs

FAQ

Does the AP0050 support gradient elution with variable slope programming?
Yes—the pump supports isocratic, linear, step, and user-defined composite gradients via front-panel or remote command, with up to 10 programmable segments per method.
What maintenance intervals are recommended for the pump head and check valves?
Under normal use (≤30 MPa, aqueous/organic solvents), the floating piston assembly requires inspection every 6 months; Swiss ruby check valves typically exceed 10,000 hours of continuous operation before replacement.
Is the pump compatible with aqueous NaOH or HF solutions?
While 316L stainless steel is not recommended for prolonged exposure to >1% NaOH or any concentration of HF, optional Hastelloy C-276 pump heads and sapphire valves can be configured upon request.
Can the AP0050 be operated in a nitrogen-purged enclosure?
Yes—its electronics are rated for IP20 operation and do not require forced convection; ambient temperature must remain within 10–40°C and relative humidity below 80% non-condensing.
How is flow accuracy verified during installation qualification (IQ)?
A gravimetric flow test using certified balance (±0.01 mg resolution) and timed collection is performed at three points across the range (0.01, 1.0, and 5.0 mL/min); deviation must fall within ±0.1% of setpoint per ASTM D3487 Annex A3 guidance.