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| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (PRC) |
| Model | AA-7000 |
| Instrument Type | Flame and Graphite Furnace AAS |
| Monochromator | Plane Grating (1800 lines/mm) |
| Optical System | Double-Beam |
| Detector Type | Solid-State Photodiode Array |
| Background Correction | D₂ Lamp + Self-Reversal (Self-Absorption) Method |
| Wavelength Range | 190–900 nm |
| Spectral Bandwidth | 0.1 / 0.2 / 0.4 / 1.0 / 2.0 nm (motorized switching) |
| Wavelength Accuracy | ±0.2 nm |
| Wavelength Repeatability | ≤±0.1 nm |
| Static Baseline Stability | ≤±0.002 A/30 min |
| Dynamic Baseline Stability | ≤±0.004 A/30 min |
| Resolution | <0.3 nm |
| Cu Characteristic Concentration (Flame) | ≤0.02 µg/mL |
| Cu Detection Limit (Flame) | ≤0.005 µg/mL |
| RSD (Flame) | ≤1% |
| Atomizer Options | 50 mm & 100 mm Interchangeable Titanium Burner Heads |
| Graphite Furnace Power Supply | Integrated (4 kW) |
| Dimensions (W×D×H) | 880 × 540 × 450 mm |
| Weight | 125 kg |
| Power Supply | 220 V, 50 Hz, Single Phase (Host: 200 W |
| GF Module | 4 kW) |
| Brand | Shimadzu |
|---|---|
| Origin | Japan |
| Instrument Type | Flame AAS |
| Monochromator | Plane Grating |
| Optical System | Double-Beam |
| Detector | Photomultiplier Tube (PMT) |
| Background Correction | Automatic D₂/Zeeman |
| Resolution | 0.3 nm |
| Sensitivity | ≥ 0.3 A for 5 ppm Cu solution |
| Repeatability (RSD) | < 0.3% |
| Detection Limit (Cu) | ≤ 0.006 mg/L |
| Condition | Factory-Refurbished & Performance-Verified |
| Brand | PerkinElmer |
|---|---|
| Origin | USA |
| Model | AAnalyst 600 |
| Instrument Type | Flame and Graphite Furnace AAS |
| Monochromator | Concave Grating |
| Optical System | Double-Beam |
| Detector | Photomultiplier Tube (PMT) |
| Background Correction | Deuterium Lamp + Self-Reversal |
| Resolution | 0.3 nm |
| Sensitivity | Cu 5 ppm, Absorbance > 0.3 A |
| Repeatability (RSD) | < 0.3% |
| Detection Limit | Cu ≤ 0.006 mg/L |
| Origin | Beijing, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | AA-7090 |
| Price Range | USD 4,200–7,000 (FOB) |
| Instrument Type | Flame and Graphite Furnace AAS (Parallel Configuration) |
| Monochromator | Holographic Grating |
| Optical System | Dual-Beam |
| Detector | Solid-State CCD Array |
| Background Correction | Automatic D₂ and Transverse AC Zeeman |
| Magnetic Field Strength | 0.6–1.1 T (0.1 T Adjustable Steps) |
| Lamp Turret | 8-Position Motorized |
| Lamp Recognition | Encoded Hollow Cathode Lamp Support |
| Graphite Furnace Imaging | Integrated Visual Monitoring System |
| Gas Control | Dual-Path Programmable Gas Supply (Main + Auxiliary) |
| Brand | PerkinElmer |
|---|---|
| Origin | USA |
| Model | AAnalyst 800 |
| Instrument Type | Flame and Graphite Furnace AAS |
| Monochromator | Plane Grating |
| Optical System | Double-Beam |
| Detector | Photomultiplier Tube (PMT) |
| Background Correction | Automatic Deuterium/Hollow Cathode Lamp (D₂/HCL) |
| Spectral Resolution | 0.3 nm |
| Sensitivity | ≥ 0.3 A for 5 ppm Cu solution |
| Precision (RSD) | < 0.3% |
| Detection Limit (Cu) | ≤ 0.006 mg/L |
| Compliance | ASTM E1921, ISO 7185, USP <731>, FDA 21 CFR Part 11–ready software environment |
| Brand | Shimadzu |
|---|---|
| Origin | Japan |
| Instrument Type | Flame/Graphite Furnace AAS |
| Monochromator | Not Specified (Grating-based) |
| Optical System | Double-beam |
| Detector | Photomultiplier Tube (PMT) |
| Background Correction | Deuterium Lamp |
| Resolution | 0.3 nm |
| Sensitivity | 5 µg/mL Cu |
| Repeatability (RSD) | ≤0.3% |
| Detection Limit (Cu) | 0.006 mg/L |
| Compliance | ASTM D4294, ISO 11885, USP <231>, FDA Guidance for Elemental Impurities in Food |
| Brand | Shimadzu |
|---|---|
| Origin | Japan |
| Model | AA-7000 |
| Instrument Type | Flame and Graphite Furnace AAS |
| Monochromator | Concave Grating |
| Optical System | Double-Beam |
| Detector | Solid-State Detector |
| Background Correction | Deuterium Lamp + Zeeman Effect |
| Brand | Persee |
|---|---|
| Origin | Beijing, China |
| Model | AA990 |
| Instrument Type | Flame and Graphite Furnace AAS |
| Optical System | Dual-Beam |
| Condition | Professionally Refurbished & Fully Qualified |
| Brand | JKRD |
|---|---|
| Model | AA800 |
| Type | Flame AAS |
| Origin | Beijing, China |
| Detector | Photomultiplier Tube (PMT) |
| Wavelength Range | 180–900 nm |
| Grating Density | 1800 lines/mm |
| Monochromator | Czerny-Turner |
| Spectral Bandwidths | 0.2 / 0.4 / 1.0 / 2.0 nm (auto-switching) |
| Wavelength Accuracy | ≤ ±0.1 nm |
| Wavelength Repeatability | ≤ ±0.025 nm |
| Baseline Drift | ≤ 0.003 ABS/30 min (static), ≤ 0.005 ABS/15 min (dynamic) |
| Resolution (Cu 324.7 nm, 0.2 nm BW) | ≤ 0.2 ± 0.01 nm |
| Characteristic Concentration (Cu) | 0.025 µg/mL / 1% |
| Detection Limit (Cu) | 0.006 µg/mL |
| Burner Head | Titanium, 0.5 mm × 100 mm |
| Nebulizer | High-efficiency glass-in-metal |
| Atomization Chamber | Corrosion-resistant all-plastic |
| RSD (repeatability) | ≤ 0.5% |
| Safety Features | Auto-shutoff on acetylene leak detection, flame-out protection, gas flow monitoring |
| Power Supply | AC 220 V / 50 Hz, 150 W |
| Dimensions | 1000 × 400 × 470 mm (L×W×H) |
| Weight | 70 kg |
| Software | Windows XP/Vista/7 compatible, Chinese-language AAS control & quantitation suite with linear regression calibration, multi-point standard curve fitting, statistical reporting, and RS232/USB connectivity |
| Brand | Dongxifenxi |
|---|---|
| Origin | Beijing, China |
| Model | AA-7000 |
| Instrument Type | Flame and Graphite Furnace AAS |
| Optical System | Dual-beam |
| Monochromator Type | Not specified (standard grating-based) |
| Detector | Solid-state photodiode array |
| Background Correction | Automatic deuterium/hollow cathode lamp or Zeeman-based (configurable) |
| Condition | Refurbished & Factory-qualified used unit |
| Compliance | Meets GB/T 21187–2007 (Chinese national standard for AAS performance verification) |
| Software | Dongxifenxi AAWin v3.x (GLP-compliant data handling, audit trail enabled) |
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