Hydride Generator/ Vapor Generation Accessory


A revolutionary vapor generation accessory offers an extremely sensitive procedure for analysis of As, Bi, Sb, Se, Te, Sn & Hg with flame like precision in ppb. Compatible with any make/brand of AAS.

Two peristaltic pumps, one with twin channels & the other a single channel is em- ployed for liquid handling. Pump-1 having twin channels, pumps the reagents.Acid & Borohydride solutions. The single channel second pump (pump-2) is employed for sending sample into the liquid stream.

One end of pump tubing is connected to the respective reservoirs, (reagents & sample beaker). The other end of the pump tubing is connected to a manifold leading to a one meter fine bore Teflon reaction column. The other end of the col- umn is connected to a glass gas liquid separator.

The acidified sample reacts with Borohydride while passing through the column and the elemental Hydride gas generated along with the fluid stream reaches the gas liquid separator. The hydride gas is purged out with an inert gas (Nitrogen/ Argon) into the flame cell mounted on the burner of the AAS while the waste fluids go  are drained.

The microcontroller precisely controls the r.p.m of twin stepper motors. Up to 10 methods are pro- vided for the user to store settings for running analysis. The system supports both standalone operation as well as PC interface. RS232 serial port is provided for host connectivity. The system also features a pressure sensor wired as an interlock. The pressure sensor con- stantly monitors the input line pressure for the carrier gas. If tade- quate pressure is not present, the interlock automatically shuts off the pump motors. The system displays an error message indicating the absence of the carrier gas. Up on restoring pressure, pumps auto- matically start at set speed.

Hydride Generator/ VGA Brochure

Some typical applications

  • Drinking water
  • Pollution monitoring
  • Food Industry
  • Forensic Science
  • Pharmaceuticals
  • Aqua culture
  • Battery Industry
  • Cosmetic Industry
  • Electronic Industry
  • Wine & breweries
  • Metallurgy
  • Refineries
  • Power generation
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