Spark Holland Alias Multifunctional Liquid Chromatography Autosampler
| Brand | Spark Holland |
|---|---|
| Origin | Netherlands |
| Manufacturer Type | Authorized Distributor |
| Product Category | Imported Instrument |
| Model | Alias |
| Instrument Type | HPLC Autosampler |
| Maximum Sample Capacity | 48 × 2 mL vials (2 racks) |
| Minimum Injection Volume | 0.1 µL |
| Standard Loop Volume | 100 µL (optional up to 10 mL) |
| Positioning Accuracy | < 0.4 mm |
| Motion Architecture | XYZ three-axis robotic arm |
| Needle Wash | Internal and external needle wash with pressurized headspace purge |
| Repeat Injection Capability | Unlimited cycles per sample |
Overview
The Spark Holland Alias is a high-precision, multifunctional autosampler engineered for robust integration into modern liquid chromatography workflows—including HPLC, UHPLC, and LC-MS platforms. Based on a dual-needle, positive-pressure headspace sampling architecture, the Alias minimizes carryover through optimized fluidic pathways and programmable internal/external needle washing routines. Its core operational principle relies on precise syringe-driven aspiration and dispense mechanics coupled with XYZ robotic positioning, ensuring reproducible delivery of sub-microliter volumes across diverse matrix types. Designed and assembled in the Netherlands, the system incorporates a Peltier-based cooling module (4–40 °C adjustable) to maintain thermal stability of thermolabile biological samples—critical for pharmacokinetic studies, clinical bioanalysis, and regulated bioanalytical method development.
Key Features
- XYZ three-axis robotic motion system with < 0.4 mm positional repeatability, enabling consistent alignment with autosampler ports and column injectors across instrument platforms.
- Dual-needle configuration with independent headspace pressurization: one needle for aspiration, the other for dispensing—eliminating cross-contamination and reducing residual carryover to < 0.005% (validated per USP ).
- Three programmable injection modes: micro-liter pick-up (direct aspiration without loop fill), loop-fill injection, and partial-loop injection—supporting both quantitative accuracy and minimal sample consumption.
- Modular tray compatibility: accommodates two 48-position 2 mL vial racks, 96-well deep-well plates, 384-well shallow-well plates, or custom plate adapters—enabling high-throughput screening and method flexibility.
- Integrated semiconductor cooling unit with real-time temperature monitoring and ±0.5 °C stability over 24 h—compliant with ICH Q5C stability guidelines for biopharmaceutical sample handling.
- Unlimited repeat injections per sample position, supporting replicate analysis, calibration curve verification, and QC re-injection protocols without manual intervention.
Sample Compatibility & Compliance
The Alias supports aqueous, organic, and mixed-solvent matrices commonly encountered in small-molecule drug analysis, peptide mapping, metabolite profiling, and oligonucleotide characterization. Its chemically resistant fluid path—constructed from PEEK, sapphire, and inert stainless steel—ensures compatibility with aggressive mobile phases (e.g., 0.1% TFA, 10 mM ammonium acetate, >95% acetonitrile). The system meets mechanical and electrical safety requirements per IEC 61010-1 and is designed to operate within GLP/GMP environments. Audit trail functionality, electronic signature support, and user-access-level controls align with FDA 21 CFR Part 11 and EU Annex 11 expectations when paired with compliant LIMS or CDS software.
Software & Data Management
Controlled via Spark’s proprietary Alias Control Software (v3.2+), the system provides intuitive method setup, sequence definition, and real-time status monitoring through a Windows-based GUI. All method parameters—including wash solvent selection, dwell time, rinse cycles, and temperature setpoints—are fully scriptable and exportable as XML templates. Raw execution logs—including timestamped start/stop events, error codes, and hardware state snapshots—are stored locally with SHA-256 hash integrity validation. Integration with major chromatography data systems (e.g., Thermo Chromeleon, Waters Empower, Agilent OpenLab CDS) is achieved via ASTM E1384-compliant ASCII command sets and optional OPC UA server modules.
Applications
- Routine pharmaceutical QC testing requiring high sample throughput and regulatory traceability (e.g., assay, dissolution, related substances).
- Preclinical and clinical bioanalysis involving plasma, serum, CSF, and tissue homogenates—leveraging low-volume injection capability and active cooling to preserve analyte integrity.
- Method development labs performing gradient optimization, column screening, or multi-dimensional LC where precise, repeatable injection volume control is essential.
- Contract research organizations (CROs) implementing validated workflows under ISO/IEC 17025 or CAP accreditation frameworks.
- Academic proteomics facilities conducting label-free quantitation or targeted MRM assays requiring unattended overnight operation and multi-plate scheduling.
FAQ
What is the maximum loop volume supported, and how is it configured?
The Alias accepts replaceable loop modules ranging from 10 µL to 10 mL; installation requires no tools and is performed via front-panel access—verified by automatic loop ID recognition during initialization.
Does the system support integration with third-party mass spectrometers?
Yes—via TTL trigger output and configurable delay timing, the Alias synchronizes seamlessly with API sources (ESI, APCI) on Thermo, Sciex, Waters, and Bruker platforms.
How is carryover performance validated and documented?
Carryover assessment follows USP protocol using a high-concentration standard followed by blank injections; results are auto-generated in the audit log with pass/fail flags based on user-defined thresholds.
Is remote monitoring or troubleshooting supported?
The system includes embedded Ethernet (RJ45) and optional Wi-Fi connectivity; remote desktop access and firmware updates are permitted only after TLS 1.2-authenticated login and role-based privilege verification.
