AAS Accessories

GBC Scientific Equipment manufactures a full range of atomic absorption sampling accessories to cover all analytical requirements. They can be fitted to any GBC AAS, except the Avanta Ultra Z.

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System 5000

The new System 5000 is the newly redesigned GF system offered by GBC.

Some of the advanced features of the System 5000 include:

Temperature range to 3000°C
Controlled ramp to 2000°C/sec
Infinitely variable inert and auxiliary gas flows
Unlimited steps with ramp and hold on each step
Power feedback for accurate temperature control
10 Standard position autosampler
Sample volume 1-100 µL
Software controlled probe positioning
Unlimited multiple injections
4 sample deposition injection rates. (1, 2, 4 and 9 µL/sec)
'Graphite Furnace Tube Number Of Firings' - logs the number of firings that the graphite tube has completed
Furnace Method Development Window enables user to inject variable volumes of modifier, sample, standard or blank solutions individually or simultaneously. The ashing and atomising temperatures can also be varied to enable the analyte peak and the background signal to be viewed from this same window

Furnace Autosampler

The PAL Autosampler is an essential component of the furnace system and accommodates 40 samples and 10 pre-mixed standards, plus one stock solution for automatic mixing of up to 10 standards. Multiple carousels can be used in an analysis.

Dispensed volume is up to 100 µL, programmable in 1 µL increments. Program options include automatic mixing of standards, automatic injection of chemical modifiers, multiple injection, heated injection, plus complete re-slope, re-calibration, check sample or spike recovery routines.

SDS-720 Sample Delivery System

The new SDS-720 is a fast, robust, high quality and reliable X-Y-Z autosampler.

Supplied with four racks each holding 60 tubes and a 10 position standard rack, it can accommodate up to 720 samples with an optional rack extention. The SDS-720 comes standard with 10 plastic 50 mL standard tubes and 60 plastic 14 mL sample tubes.

The SDS-720 also has an integrated variable speed rinse station and inert spill rack which prevents any solution from inadvertently spilling over the autosampler or your laboratory bench.

Hydride System

The HG3000 Hydride generator forms part of a complete hydride system which can be used in conjunction with any GBC AAS for trace level analysis of the hydride forming elements (arsenic, selenium, bismuth, germanium, antimony, tin and tellurium), and mercury by the cold vapour method. Detection limits of 1 ppb are routinely achievable. Typical sample throughput is around 60 samples per hour taking three replicate measurements, with a typical precision of 1%.

The quartz cell used for hydride analysis can be heated by flame, or by the optional EHG3000 electric cell heater. The EHG3000 provides a temperature controlled electric heating blanket to heat the quartz cell, and includes power supply, temperature controller and workhead. The EHG3000 provides more accurate temperature control than is possible with flame heating.

Flame and Electric Heating Comparison

Mercury Concentrator

The MC3000 Mercury Concentrator is used in conjunction with the HG3000 and adds parts per trillion capability to the hydride system for the analysis of mercury vapour, using a gold amalgam as the concentrating medium. The MC3000 consists of a power supply and workhead with built in gold foil trap and a quartz absorption cell. It is controlled by the AAS software, which provides programmable load time, number of replicates, flush time and clean.

Atom Trap

Enhance sensitivity for certain elements using the GBC Atom Trap. The Atom Trap is a flame-heated quartz cell which is placed in the optical path, enhancing sensitivity by providing a longer residence time for the analyte in the excitation zone.

Atom Trap Application Note