Day 1 - US Pharmacopeial Convention
Day 1 - US Pharmacopeial Convention
Day 1 - US Pharmacopeial Convention
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Torch Configurations<br />
• Radial (Lateral)<br />
“Traditional” torch configuration<br />
Generally more robust than axial configuration<br />
Can use higher power settings (up to 1750W)<br />
Generally less sensitive than axial configuration<br />
Generally less expensive than axial configuration<br />
• Axial<br />
Improved sensitivity over radial ICP-AES<br />
Many elements can be determined at levels<br />
previously attainable only by GFAAS and/or ICP-MS<br />
Rapid technique<br />
FFewer spectral t l interferences i t f than th with ith radial di l ICP ICP-AES AES<br />
More expensive than radial ICP-AES and less expensive than ICP-MS<br />
Requires argon for plasma and some kind of sheer gas—usually argon or nitrogen<br />
Axial plasma employs lower power, resulting in some difficulties when analyzing<br />
organics. This results in more problems due to carbon buildup.<br />
• Dual-View<br />
Option to view plasma either “end on” (axial) or “side on” (radial or lateral)<br />
Theoretically can take advantage of optimal torch configuration for the analysis<br />
Bristol Bristol-Myers Myers Squibb Company<br />
Page 4<br />
Bristol Bristol-Myers Myers Squibb Company
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