Synpec AA6810 Hydride Generation System
| Brand | Synpec |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic (China-made) |
| Model | AA6810 |
| Instrument Type | Hydride Generation Accessory for Atomic Absorption Spectrometry |
| Monochromator Element | Plane Grating |
| Optical System | Single-Beam |
| Detector | Photomultiplier Tube (PMT) |
| Spectral Resolution | 0.2 nm |
| Sensitivity | Cu 5 ppm → Absorbance > 0.3 A |
| Repeatability (RSD) | < 0.3% |
| Detection Limit (Cu) | < 0.004 µg/mL |
Overview
The Synpec AA6810 Hydride Generation System is a dedicated sample introduction accessory engineered for trace-level determination of hydride-forming elements—including As, Se, Sb, Bi, Te, Sn, Pb, and Ge—by flameless atomic absorption spectrometry (AAS). It operates on the principle of chemical vapor generation: analyte species in acidic aqueous solution are reduced by sodium borohydride (NaBH₄) to form volatile covalent hydrides, which are swept by inert carrier gas into a quartz atomization cell mounted in the optical path of an AAS instrument. This process effectively separates the analyte from complex matrices, minimizes interferences from transition metals and anions, and enhances sensitivity by up to two orders of magnitude compared to conventional nebulization. The AA6810 is designed for seamless integration with standard single-beam AAS platforms equipped with plane-grating monochromators and PMT detectors, delivering high reproducibility and low detection limits essential for environmental monitoring, food safety testing, and pharmaceutical impurity analysis.
Key Features
- Optimized gas–liquid separation chamber with integrated PTFE-coated reaction coil for stable hydride formation and minimal memory effect
- Programmable reagent delivery system supporting precise control of acid concentration (HCl), NaBH₄ flow rate, and reaction delay time
- Quartz T-type atomizer with integrated thermoelectric heating (up to 900 °C) for efficient in situ atomization and reduced background emission
- Robust architecture with corrosion-resistant fluidic pathways (PP, PTFE, quartz) compatible with aggressive HCl/NaBH₄ chemistry
- Real-time pressure monitoring and automatic overpressure cutoff to ensure operator safety and system integrity
- Modular design enabling rapid maintenance, cleaning, and component replacement without optical realignment
Sample Compatibility & Compliance
The AA6810 supports liquid samples with total dissolved solids (TDS) ≤ 0.2% and chloride concentrations up to 10% (v/v) HCl. It accommodates both batch and continuous-flow hydride generation modes, accommodating sample volumes from 1–5 mL per analysis. The system complies with internationally recognized analytical protocols including EPA Method 200.9, ISO 11969:2015 (determination of arsenic in water), and GB/T 5750.6–2023 (Chinese national standard for drinking water quality). All electronic control modules meet IEC 61326-1 requirements for electromagnetic compatibility in laboratory environments. Data acquisition workflows support audit-trail functionality aligned with GLP and GMP documentation practices.
Software & Data Management
The AA6810 interfaces via RS-232 or USB to third-party AAS data systems (e.g., Thermo Fisher SOLAAR, PerkinElmer WinLab32, or custom LabVIEW-based platforms). It does not include proprietary software but provides full command-set documentation (ASCII protocol) for OEM integration. Signal output is analog (0–1 V DC) synchronized to AAS lamp modulation frequency, enabling precise peak-area integration and baseline correction. All operational parameters—including pump speed, reaction time, and gas flow—are logged alongside spectral data, ensuring traceability per FDA 21 CFR Part 11 requirements when used within validated laboratory information management systems (LIMS).
Applications
- Quantification of inorganic arsenic in rice flour and infant cereals per EU Commission Regulation (EU) No 2023/915
- Speciation-unresolved Se determination in seafood extracts following AOAC 996.11 digestion protocols
- Monitoring antimony leaching from PET beverage containers in compliance with EFSA thresholds
- Baseline screening of bismuth and tellurium in geological leachates for mineral exploration QA/QC
- Validation of hydride generation efficiency in method transfer studies between ISO-accredited laboratories
FAQ
Is the AA6810 compatible with graphite furnace AAS instruments?
Yes—when used as a cold-vapor introduction module, it can be coupled to GF-AAS systems with appropriate interface adapters and timing synchronization.
What is the typical lifetime of the quartz atomizer under routine operation?
With proper acid rinsing between runs and avoidance of high-salt matrices, the atomizer typically exceeds 5000 analyses before requiring replacement.
Does the system support dual-channel hydride generation for simultaneous As/Se measurement?
No—the AA6810 is a single-channel system; sequential analysis is required for multi-element determination.
Can the reagent delivery pumps be calibrated in-house?
Yes—calibration is performed using gravimetric flow verification with certified volumetric flasks and analytical balance (±0.1 mg resolution), following procedures documented in the user manual.
Is CE marking available for export to the European Union?
The AA6810 meets EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU; CE declaration is provided upon request for registered distributors.
