Key Features

  • Flame & Graphite Furnace Auto-Switching: Controlled by the software, the instrument automatically switches between flame and graphite furnace operating modes, configuring the system for automatic analysis and dilution.
  • Automatic Lamp Turret: Features an automatic turret configuration that holds ≤8 lamps. It supports automatic alignment, direct use of high-performance hollow cathode lamps, and automatic adjustment of power supply parameters.
  • Optical Temperature Monitoring (Graphite Furnace): Utilizes a vertical optical temperature monitoring system that detects the graphite tube wall temperature. This supports programmable temperature control up to 3000°C across 20 heating steps.
  • Corrosion-Resistant Flame System: Equipped with a polymer material spray chamber that provides resistance to acids and alkalis, including hydrofluoric acid. It is paired with an efficient glass atomizer and a titanium burner.
  • Precision Optical System: Employs a large 1800 lines/mm grating monochromator and an imported photomultiplier tube (PMT) detector. It supports a wavelength accuracy of ±0.15nm and repeatability of <0.1nm, featuring a 7-step automatic changeover spectral bandwidth.
  • Automated Gas & Safety Control: The flame system includes microcomputer-controlled automatic safety ignition and extinction. The graphite furnace system integrates alarm and protection functions for graphite tube damage, water flow, air pressure, and overheating.

Specifications

ParameterSpecification
ModelAA-1800EL
Light Source≤8 lamps automatic turret, automatic alignment
Optical SystemLarge 1800 lines/mm grating, full closed optical system
Wavelength Range185nm – 900nm
Wavelength Accuracy±0.15 nm
Wavelength Repeatability<0.1 nm
Spectral Bandwidth0.1, 0.2, 0.4, 0.7, 1.0, 1.4, 2.0 nm (7 steps automatic changeover)
Baseline Stability≤±0.002A/30 min (Static) | ≤±0.004A/30min (Dynamic)
Absorbance Range0 – 4A
DetectorImported photomultiplier tube
Burner Head (Flame)Full titanium combustion head, 50mm or 100mm
Atomization ChamberPolymer explosion-proof spray chamber
Precision (Flame)RSD ≤ 0.5%
Detection Limit (Flame)0.002μg/mL (Cu)
Heating Mode (Graphite)Vertical heating
Temperature Control (Graphite)Vertical optical temperature monitoring (tube wall)
Temperature Range (Graphite)Room temperature to 3000ºC (up to 20-order control)
Precision (Graphite)RSD ≤ 2%
Characteristics Volume0.4 × 10⁻¹²g (Cd)
Detection Limit (Graphite)0.4 × 10⁻¹²g (Cd)
Graphite Furnace SafetyAlarm/protection for tube damage, water flow, air pressure, overheating
Power Supply110/220V (+5% ~ -10%), 60/50Hz; 5000VA

Applications

The AA-1800EL is utilized in scientific research, quality control, and industrial sectors for high-sensitivity trace elemental analysis:

  • Environmental Protection: Testing trace elements and heavy metals in environmental samples and water quality monitoring.
  • Agriculture and Food Testing: Analyzing nutritional elements and heavy metal contamination in agricultural products and fertilizers.
  • Metallurgy and Mining: Analyzing elemental compositions in ores, metallurgical materials, and industrial processes.
  • Chemical Industry: Routine quality control and element detection of chemical raw materials and manufacturing by-products.

Who is it for?

  • Comprehensive Testing Laboratories: Facilities handling diverse testing demands that require an instrument capable of utilizing both flame and graphite furnace methods.
  • Quality Control Departments: QC labs in the chemical, agricultural, and metallurgical industries that require consistent and automated operation for routine element detection.
  • Research Institutions: Organizations conducting trace elemental analysis on complex samples that benefit from programmable graphite furnace temperature controls and a broad wavelength range.

Why choose it?

  • Integrated Versatility: By incorporating both flame and graphite furnace systems, the AA-1800EL provides a flexible configuration for laboratories, allowing automatic mode switching through the software without hardware reconstruction.
  • Optimized Optical System: The instrument includes a specific 7-step automatic changeover spectral bandwidth and an automatic peak finding function to support accurate optical alignment and testing reliability.
  • Certified Qualifications: The instrument complies with major international product qualifications and safety standards, holding certifications including the European CE mark, North American ETL, FCC, RoHS, China CQC, and 3C.

Packaging, Installation & Operation

Packaging & Shipping

After unpacking the instrument, compare the contents with the packing list and check that all items are present and undamaged.

Installation & Setup

Place the spectrophotometer in a suitable location away from direct sunlight, dust, corrosive gases, and strong vibrations. For stable operation, keep it away from strong magnetic or electrical fields and electrical devices that may generate high-frequency fields.

Keep the area around and underneath the instrument clear to allow adequate airflow.

Use the appropriate power cord and connect the instrument to a grounded outlet.

Initial Operation

Turn on the spectrophotometer and allow it to warm up for the recommended time before taking measurements. Follow the instrument’s operating instructions to complete any required system initialization, calibration, or wavelength verification before measurement.

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Exhibition

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FAQ (Frequently Asked Questions)

Yes. Supported by the control software, the flame and graphite furnace operating modes can be switched automatically, configuring the system for automatic analysis and dilution.

The instrument operates in the 185nm to 900nm wavelength range and features a 7-step automatic changeover spectral bandwidth (0.1, 0.2, 0.4, 0.7, 1.0, 1.4, 2.0 nm).

The AA-1800EL uses a vertical optical temperature monitoring method that measures the graphite tube wall temperature, allowing for programmable automatic temperature control up to 3000°C.

The flame system utilizes a full titanium combustion head, which is available in 50mm or 100mm specifications.

The graphite furnace system includes alarms and protection functions for graphite tube damage, water flow, air pressure, and temperature overheating.

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