Agilent Technologies VGA 77 User Manual

Analytical Notes
56 Agilent Vapor Generation Accessory VGA 77 and VGA 77P User’s Guide
Background
The VGA 77 employs continuous flow technology where samples and
liquid reagents are pumped together and mixed. The gaseous
reactions products are swept by a flow of argon gas into the
spectrometer.
NOTE
Nitrogen gas can be used with the AA reagent module.
The following figure shows a schematic diagram of the VGA 77.
Figure 19. Schematic of the VGA 77
The peristaltic pump maintains a constant flow of analytical
solutions into the accessory.
Reductant
Acid
Drain
Gas/liquid
separator
To spectrometer
Reaction coil
Argon
Flow controller
Sample
Peristaltic
pump

Agilent Technologies VGA 77 Specifications

General

Brand	Agilent Technologies
Model	VGA 77
Category	Laboratory Equipment
Language	English