Mercury/Hydride Determination System (Mhs-15) - PerkinElmer aanalyst 200 User Manual

Mercury/Hydride Determination System (MHS-15)

Mercury/Hydride Systems are proven accessories for high sensitivity determinations of mercury
and metallic hydride-forming elements, including As, Se, Sb, Te, Bi and Sn by atomic absorption
spectroscopy.
The basic components of a mercury/hydride system are the reaction vessel and sampling cell. The
sample solution reacts with a reducing agent in the reaction vessel. A spontaneous reaction occurs
to form the gaseous hydride or to reduce mercury to its elemental form. The gaseous products are
carried to the sample cell, a quartz cell placed in the light path of the spectrometer. The quartz
cell is heated to dissociate the hydride gas into free atoms, or in the case of mercury, to prevent
condensation of the water vapor.
Plunger
Figure 4- 12 The MHS-15 and its parts.
AAnalyst 200 User's Guide
Reaction Flask Socket
with Bayonet Lock
Lugs
Reaction Flask
4-21