13
Parr Instrument
Oxygen Combustion Bombs
Bulletin 4700
Oxygen Bomb Apparatus
A Quartz Liner for the
1108 Oxygen Bomb
Complete Systems for Bomb
Combustion Procedures
T
his is the convenient way to purchase an oxygen bomb
with a full set of operating accessories. Although any of
the components of this apparatus may be purchased
separately, by purchasing a complete apparatus the user can be
sure that he will have all of the equipment needed for bomb
combustion operations. The 1901 Apparatus with an 1108 bomb
will handle most procedures. It consists of:
1
1108
Oxygen combustion bomb
1
A387A
Water bath
1
1825
Oxygen filling connection
1
2901
Ignition unit
2
A468E
Ignition cords
1
A38A
Bomb head support stand
1
421A
Bomb lifter
6
43AS
Combustion capsules
3
45C10
Cards of 10-cm fuse wire
1
3601
Bottle of 100 gelatin capsules
1
set
Extra gaskets and sealing rings
1
—
Instruction manual
Similar oxygen bomb apparatus with accessories listed above
can be furnished with an 1108CL bomb or with an 1108 bomb
with platinum electrodes and a quartz liner. Spare parts kits are
available also.
ORDERING INFORMATION
Oxygen bomb apparatus with 1108 bomb.
1901EB
115v 50/60 Hz
1901EE
230v 50/60 Hz
Oxygen bomb apparatus with 1108CL bomb.
1901CLEB
115v 50/60 Hz
1901CLEE
230v 50/60 Hz
Oxygen bomb apparatus with 1108 bomb and quartz liner.
1911EB
115v 50/60 Hz
1911EE
230v 50/60 Hz
For Determining Trace Elements
in Combustible Samples
T
race elements in coal, oil and other combustible samples
are readily determined by AA or ICP spectroscopy following
combustion in an oxygen bomb. However, trace amounts of
heavy metals leached from the bomb walls and electrodes during
combustion can cause problems. This can be avoided by using a
platinum-lined bomb, but a platinum lining is expensive. As an
alternate, Parr offers a quartz liner for the 1108 bomb which does
not provide the full protection of platinum, but is, nevertheless,
an effective substitute. In this arrangement the burning sample
comes in contact with only the quartz liner and platinum
electrodes. Reprints of papers describing the successful use
of an 1108 bomb with quartz liner for trace analysis by
AA spectroscopy are available from Parr.
The Quartz Liner
The quartz liner for the 1108 bomb consists of a quartz cup,
61 mm dia. x 86 mm deep, with a flat quartz cover. Holes are
provided in the cover for inserting platinum electrodes which
support a fused silica sample cup and a short platinum fuse wire.
All of the parts needed for adding this liner are provided in the
1912 Quartz Liner Conversion Set, consisting of:
1
513A
Quartz liner
1
514A
Quartz liner
1
4AFB
Platinum electrode
1
5AFB
Platinum electrode
2
68AC
Lock nut, T303SS
1
45C3
Platinum fuse wire, 300 cm
4
43A3
Fused silica combustion capsules
Users who do not have an 1108 bomb should order the 1911
oxygen bomb apparatus listed above which provides a bomb
complete with a quartz liner and all accessories.
ORDERING INFORMATION
1912 Conversion set for adding a quartz liner to an 1108 oxygen bomb.
