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US 9,433,072 B2Granted
Oxidation resistant induction devices
AssigneePerkinElmer Health Sciences, Inc.
InventorPeter J Morrisroe
Life of this patent
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Abstract
Certain embodiments described herein are directed to induction devices comprising an oxidation resistant material. In certain examples, the induction device comprises a coil of wire that is produced from the oxidation resistant material. In some examples, the oxidation resistant induction device can be used to sustain an inductively coupled plasma in a torch.
Claims20
A method of generating a plasma comprising:
- introducing a gas into a torch body;
- providing radio frequency energy to the torch using an induction device comprising an oxidation resistant material, in which the induction device is configured as a helical induction coil comprising a plurality of coil turns coupled to each other, in which the coil turns comprise an effective amount of the oxidation resistant material to permit a plasma to be sustained in the torch body for at least ten hours without substantial oxidation of the helical induction coil;
- igniting the gas in the torch body to generate the plasma;
- and
- sustaining the plasma in the torch body for at least ten hours without substantial oxidation of the helical induction coil.
2 more elements
A method of generating a plasma comprising:
- introducing a gas into a torch body;
- providing radio frequency energy to the torch using an induction device comprising an oxidation resistant paramagnetic material, in which the induction device is configured as a helical induction coil comprising a plurality of coil turns coupled to each other, in which the coil turns comprise an effective amount of the oxidation resistant paramagnetic material to permit a plasma to be sustained in the torch body for at least ten hours without substantial oxidation of the helical induction coil;
- igniting the gas in the torch body to generate the plasma;
- and
- sustaining the plasma in the torch body for at least ten hours without substantial oxidation of the helical induction coil.
2 more elements
Dependencies are inferred from the claim text.