Graphite Furnace System - AAS Graphite Atomizer - 20-3000°C Range - 9 Heating Steps

The Master Science Graphite Furnace System is an electrothermal atomizer for quantitative trace element analysis by graphite furnace atomic absorption. Connected to a compatible atomic absorption spectrophotometer, it lowers detection limits well below flame AAS, reaching picogram levels for elements such as cadmium.

A nine-step temperature program from ambient to 3000 °C, with adjustable ramp and hold times, lets each method dry, ash and atomize the sample under controlled conditions.

Technical Specifications

Technical data of the Master Science Graphite Furnace System:

• Brand: Master Science
• Model Number: MSGRD-3202SWISS
• SKU: MSGRD-3202SWISS
• Heating Steps: 9
• Temperature Range: 20 °C to 3000 °C (nominal)
• Ramp Time: 0 to 999 s
• Hold Time: 1 to 999 s (ramp + hold ≤ 999 s)
• High-power Heating: 1000 °C to 2700 °C
• Inert Gas: Argon, inlet pressure above 0.3 MPa
• Cooling Water: Tap or recirculated water, at least 2 L/min
• Display: LCD
• Interfaces: AAS spectrophotometer, autosampler, RS232
• Alarms: Gas pressure and furnace overheat
• Characteristic Mass (with AAS): Cd ≤ 1 × 10⁻¹² g; Cu ≤ 1 × 10⁻¹⁰ g
• Power Supply: 220 V ±22 V, 50 Hz ±1 Hz (3 A control; 30 A heating)
• Heating Power: About 5.1 kW at 2700 °C
• Rated Power: 7.2 kW
• Operating Conditions: +10 °C to +30 °C; humidity below 85 %
• Package Dimensions (W × D × H): 730 × 660 × 910 mm

Key Benefits

• Lower detection limits: the Master Science Graphite Furnace System atomizes the whole sample in the tube, reaching picogram levels for trace metals.
• Method flexibility: nine programmable steps with independent ramp and hold times suit dry, ash and atomize stages for different matrices.
• Protected operation: alarms warn of low argon pressure or furnace overheating before damage occurs.
• Easy integration: RS232 and autosampler interfaces connect the furnace to the AAS workflow.
• Small sample volumes: furnace analysis needs far less sample than flame aspiration.

The furnace is designed as an accessory for the Master Science double beam flame AAS analyzer.

Product Features

Temperature Program

• Ambient to 3000 °C nominal range
• Nine heating steps
• Ramp 0 to 999 s and hold 1 to 999 s per step
• High-power heating mode from 1000 °C to 2700 °C

Safety and Utilities

• Argon purge for tube protection
• Water cooling at 2 L/min or more
• Gas pressure and overheat alarms

Connectivity

• Interface to atomic absorption spectrophotometer
• Autosampler connection
• RS232 output and LCD display

Applications

The Master Science Graphite Furnace System is used for trace analysis of:

• Lead, cadmium and other heavy metals in drinking water
• Toxic elements in food and biological samples
• Trace metals in soil and environmental samples
• Impurities in pharmaceutical and high-purity materials
• Research on low-level elemental contamination

Common Laboratory Problems and How This Furnace Helps

Typical trace metal challenges addressed by the Master Science Graphite Furnace System:

• Flame AAS not sensitive enough: furnace atomization reaches far lower concentrations.
• Limited sample volume: microlitre injections are enough for analysis.
• Matrix interference: separate drying and ashing steps remove the matrix before atomization.
• Equipment damage from utility failure: gas and overheat alarms protect the furnace.
• Manual sample injection: an autosampler interface supports unattended runs.