Yoke RG-3604AA Flame Atomic Absorption Spectrophotometer
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Manufacturer |
| Regional Classification | Domestic (China) |
| Model | RG-3604AA |
| Instrument Type | Flame AAS |
| Monochromator | Plane Grating |
| Optical System | Single-Beam |
| Detector | Solid-State Detector |
| Background Correction | Deuterium Lamp Correction |
| Repeatability (RSD) | ≤0.7% |
| Detection Limit | ≤0.008 µg/mL |
| Wavelength Range | 190–900 nm |
| Spectral Bandwidths | 0.1, 0.2, 0.7, 1.4, 2.0 nm (5-step auto-switching) |
| Wavelength Accuracy | ±0.3 nm |
| Lamp Positions | 4 |
| Atomization System | Flame only (graphite furnace optional, external) |
Overview
The Yoke RG-3604AA Flame Atomic Absorption Spectrophotometer is a precision analytical instrument engineered for quantitative elemental analysis in laboratory environments where reliability, regulatory compliance, and operational efficiency are critical. Based on the fundamental principle of atomic absorption spectroscopy—where ground-state free atoms in a flame absorb characteristic wavelengths of light emitted by hollow cathode lamps—the RG-3604AA delivers trace-level detection of over 65 metallic elements. Its single-beam optical architecture incorporates a high-efficiency plane grating monochromator and solid-state detector to ensure stable baseline performance and high signal-to-noise ratio. Designed for routine quality control, environmental monitoring, food safety testing, and pharmaceutical raw material verification, the system operates within the 190–900 nm spectral range with five selectable spectral bandwidths (0.1–2.0 nm), enabling method optimization across diverse sample matrices.
Key Features
- Full-spectrum deuterium lamp background correction integrated with high-performance self-reversal dual-background correction for accurate compensation of molecular absorption and scattering effects.
- Intelligent gas control module with real-time pressure monitoring, automatic flame ignition sequence, and fail-safe shutdown protocols compliant with ISO 22196 and EN 61000-6-3 electromagnetic compatibility standards.
- Four-position automated lamp turret with precise 360° rotational alignment and lamp warm-up synchronization—ensuring rapid element switching without manual recalibration.
- Optimized flame atomization system featuring adjustable burner head height, pneumatic nebulizer with sapphire orifice, and air-acetylene or nitrous oxide-acetylene flame support for enhanced sensitivity and matrix tolerance.
- RG-WinAAS workstation software running natively on Microsoft Windows OS, supporting method development, calibration curve generation (linear, quadratic, log-log), QC flagging, and audit-trail-enabled data logging per FDA 21 CFR Part 11 requirements.
- Robust mechanical design with thermally stabilized optical bench and vibration-damped base plate to minimize wavelength drift during extended operation.
Sample Compatibility & Compliance
The RG-3604AA supports aqueous liquid samples, acid-digested environmental solids (e.g., soils, sludges), biological digests (tissues, blood), and industrial process solutions. It complies with ASTM D1688 (copper in water), ISO 11885 (water quality—determination of selected elements by AAS), and USP for elemental impurity screening in pharmaceutical excipients. The system’s ≤0.008 µg/mL detection limit for Cu at 324.8 nm meets EPA Method 200.7 performance criteria. All hardware and software components adhere to CE marking directives (2014/30/EU EMC and 2014/35/EU LVD), and the workstation enables GLP/GMP-compliant reporting through electronic signature support and user-access-level permissions.
Software & Data Management
RG-WinAAS provides a modular interface for instrument control, data acquisition, and post-processing. Calibration workflows support multi-point standard addition, internal standardization, and drift correction. Raw absorbance data is stored in proprietary .AAS binary format with embedded metadata (operator ID, timestamp, lamp current, slit width, integration time). Export options include CSV, PDF reports, and XML for LIMS integration. Audit trails record all parameter changes, result modifications, and user logins with tamper-proof timestamps—fully traceable for regulatory inspections. Software validation documentation (IQ/OQ/PQ templates) is available upon request for laboratory qualification under ISO/IEC 17025.
Applications
- Environmental laboratories: quantification of Pb, Cd, Cr, Ni, and Zn in wastewater per EPA 7000B and ISO 17294-2.
- Food and beverage QA/QC: Na, K, Ca, Mg, Fe, and Mn analysis in dairy, cereals, and infant formula per AOAC 984.27.
- Geological and metallurgical labs: determination of Cu, Fe, Al, and Mn in ore leachates and alloy digests.
- Clinical research: serum Zn and Cu profiling in nutritional studies using flame AAS validated against ICP-MS reference methods.
- Academic teaching labs: hands-on instruction in atomic spectroscopy fundamentals, calibration theory, and interference mitigation strategies.
FAQ
Is the RG-3604AA compatible with graphite furnace atomization?
Yes—while the base configuration is flame-only, the system supports external graphite furnace modules (e.g., GF-3600) via standardized electrical and optical interfaces; furnace-specific software modules and temperature programming are managed through RG-WinAAS.
What regulatory standards does the software meet for data integrity?
RG-WinAAS implements electronic signatures, role-based access control, and immutable audit trails aligned with FDA 21 CFR Part 11 and EU Annex 11 requirements for computerized systems in regulated environments.
Can the instrument be integrated into a laboratory information management system (LIMS)?
Yes—CSV and XML export formats, plus optional OPC UA server add-on, enable bidirectional communication with major LIMS platforms including LabWare, STARLIMS, and Thermo Fisher SampleManager.
What maintenance intervals are recommended for optimal performance?
Daily: nebulizer cleaning and burner head inspection. Quarterly: optical alignment verification and deuterium lamp energy check. Annually: full wavelength calibration using holmium oxide reference filter and detector linearity assessment per ISO/IEC 17025 clause 6.4.3.
