Functions and setup of the contrAA 600
32
Edition 01/2014
contrAA 600
5.4
Accessories for the graphite tube technique
5.4.1
Autosampler AS-GF
The autosampler AS-GF is used in the EA mode for feeding the liquid samples and in the
HydrEA technique for feeding the reaction gas into the graphite tube.
NOTE
Manual pipetting is not recommended because of the poor reproducibility rate.
1
autosampler arm with canula restraint
2
tube guide
3
sample tray with sample tray cover
4
dosing unit (500 µL)
5
waste bottle
6
storage bottle for wash solution
(or diluent)
Fig. 14
Autosampler AS-GF
The autosampler AS-GF accepts defined volumes of different solutions and places them into
the graphite tube. It enables the
Addition of up to five modifiers to the sample solution
Transport of the sample solution to the thermal pretreatment in the tube
Enrichment of samples
Placement of components in the preheated tube
Separate transport of components with intermediate washing
Automatic preparation of standards by dilution or by different volumes
Fixed, preselected or intelligent sample dilution
Fully automatic multi-element mode (night mode possible)
The sample tray of the AGS-GF has space for 100 sample cuts (with V = 1.5 mL) and 8
central cups for diluent, special samples, standards, modifiers etc. (with V = 5 mL).
