English Product Name

Overview

The Shimadzu AA-7000 is a used but fully functional, dual-mode atomic absorption spectrophotometer engineered for high-precision elemental quantification in environmental, pharmaceutical, clinical, and industrial quality control laboratories. It employs flame atomization (FAAS) and electrothermal graphite furnace (GFAAS) techniques within a single integrated platform, adhering to core principles of Beer-Lambert law-based absorbance measurement at element-specific resonance wavelengths. Its double-beam optical architecture—featuring a Czerny-Turner monochromator with an 1800-line/mm plane grating—ensures exceptional photometric stability and minimizes drift from ambient thermal fluctuations or mechanical vibration. The optical bench utilizes a suspended design, decoupling the detector and monochromator from structural chassis movements—a critical feature for long-term reproducibility in regulated environments. As one of the most compact all-in-one AAS systems ever commercialized, the AA-7000 integrates the flame atomizer, graphite furnace assembly, high-voltage furnace power supply, solid-state detector array, and dual-lamp turret into a unified instrument body without external modules.

Key Features

• Integrated dual-atomization platform supporting flame, graphite furnace, hydride generation, and flame emission modes—enabling broad elemental coverage (e.g., As, Se, Cd, Pb, Cr, Ni, Fe, Ca, Mg, Zn) under a single software interface.
• Patented all-titanium nebulizer chamber and burner head system, fabricated via investment casting using aerospace-grade industrial pure titanium—delivering superior corrosion resistance against aggressive acids (HNO₃, HCl, HF blends), thermal stability up to 2500 °C, and extended service life (>10,000 analyses per burner).
• Automated six-lamp turret with computer-controlled positioning; wavelength auto-search, slit width selection, lamp current optimization, and gain calibration completed in ≤40 seconds—meeting ISO 11099 and ASTM E1776 performance benchmarks for operational efficiency.
• Dual background correction: deuterium (D₂) lamp for continuum-source correction in flame mode; self-reversal (self-absorption) method for full-wavelength correction across both flame and graphite furnace measurements—validated per USP and EP 2.2.24 protocols.
• Comprehensive safety architecture including real-time monitoring of acetylene pressure, argon purge flow, graphite furnace temperature ramp anomalies, flame extinction detection, and hollow cathode lamp overcurrent protection—fully compliant with IEC 61010-1 and OSHA 1910.101 standards.

Sample Compatibility & Compliance

The AA-7000 accommodates aqueous solutions, digested environmental matrices (soil, sludge, wastewater per EPA Method 200.7/200.9), biological fluids (serum, urine per CLIA guidelines), and pharmaceutical excipients (per USP heavy metals testing). Its titanium combustion system permits direct analysis of high-salt samples (e.g., seawater, brines) without clogging. All firmware and data handling routines support audit-trail functionality aligned with FDA 21 CFR Part 11 requirements when paired with validated Shimadzu LabSolutions AA software. Instrument qualification documentation—including IQ/OQ/PQ templates—meets GLP and GMP laboratory validation expectations. Calibration traceability is maintained to NIST SRM reference materials (e.g., SRM 1643e, 1640a).

Software & Data Management

Controlled exclusively via Shimadzu LabSolutions AA v2.x, the system provides full remote operation, method storage, and report generation. Software modules support linear/non-linear calibration curves, standard addition, peak-area/peak-height integration, and automatic interference correction. All raw spectral data, instrument parameters (lamp current, slit width, gas flows), and audit logs are timestamped and stored in encrypted .sdt binary format. Export options include CSV, PDF, and XML for LIMS integration. Electronic signatures, user-level access controls, and 21 CFR Part 11-compliant electronic records are enabled through optional software licensing—essential for regulated QC labs undergoing FDA or EMA inspections.

Applications

• Environmental monitoring: Quantification of trace metals (Cd, Pb, As, Hg) in drinking water (EPA 200.9), soils (EPA 6010D), and airborne particulates (NIOSH 7300).
• Pharmaceutical QA/QC: Heavy metal testing in APIs and finished dosage forms per ICH Q2(R2) and USP /.
• Clinical toxicology: Serum copper/zinc ratio analysis and lead screening in whole blood (CLIA-waived methodology).
• Food safety: Cadmium in rice, arsenic in seafood, and nickel migration from stainless-steel cookware (EU Regulation 1881/2006).
• Geochemical research: Multi-element analysis of rock digests using matrix-matched calibration and Zeeman-effect-free GFAAS protocols.

FAQ

Is this unit supplied with original factory calibration certificates and maintenance history?
Yes—each refurbished AA-7000 undergoes full functional verification per Shimadzu’s pre-owned instrument protocol, including wavelength accuracy, photometric linearity, and detection limit validation. Full service logs and calibration reports are provided upon request.
Can the system be upgraded to support Zeeman background correction?
No—the AA-7000 hardware architecture supports only D₂ and self-reversal correction methods. Zeeman capability requires newer AA-6880 or AA-7000Z platforms.
What consumables are included in the standard configuration?
The base package includes one set of universal hollow cathode lamps (Cu, Mn, Fe), graphite tubes (Type HGA), titanium burner heads (50 mm and 100 mm), and nebulizer capillaries. High-purity gases (Ar, C₂H₂) and compressed air must be sourced locally.
Does the instrument meet ISO/IEC 17025 requirements for accredited testing labs?
When operated with documented SOPs, trained personnel, and periodic interlaboratory comparisons, the AA-7000 satisfies technical competence criteria in ISO/IEC 17025:2017 Clause 6.4 (Equipment) and 6.5 (Measurement Traceability), subject to lab-specific validation.
Is remote diagnostic support available post-installation?
Yes—Shimadzu’s global service network provides secure remote access for troubleshooting, firmware updates, and performance optimization via TLS-encrypted connection, covered under optional annual support contracts.