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Electron capture safety
WA R N I N G
Getting Started
ECD warnings
Although beta particles at the energy level used in the 6820 ECD
have little penetrating power —the surface layer of the skin or a
few sheets of paper will stop most of them—they may be
hazardous if the isotope is ingested or inhaled. For this reason
the cell must be handled with care: radioactive leak tests must
be performed at the required intervals, the inlet and outlet
fittings must be capped when the detector is not in use,
corrosive chemicals must not be introduced into the detector,
and the effluent from the detector must be vented outside the
laboratory environment.
Materials that may react with the
products or to cause physical degradation of the plated film, must be
avoided. These materials include oxidizing compounds, acids, wet
halogens, wet nitric acid, ammonium hydroxide, hydrogen sulfide,
PCBs, and carbon monoxide. This list is not exhaustive but indicates
the kinds of compounds that may cause damage to
In the extremely unlikely event that both the oven and the detector
heated zone should go into thermal runaway (maximum,
uncontrolled heating in excess of 400 °C) at the same time, and that
the detector remains exposed to this condition for more than
12 hours, take the following steps:
• After turning off the main power and allowing the
instrument to cool, cap the detector inlet and exhaust vent
openings. Wear disposable plastic gloves and observe normal
laboratory safety precautions.
• Return the cell for exchange. Contact your local sales office
for details.
• Include a letter stating the condition of abuse.
The 6820 Gas Chromatograph
63
Ni source, either to form volatile
63
Ni detectors.
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