Low-pressure water-cooled inductively coupled plasma torch
Abstract
An inductively coupled plasma torch is provided which comprises an inner tube, including a sample injection port to which the sample to be tested is supplied and comprising an enlarged central portion in which the plasma flame is confined; an outer tube surrounding the inner tube and containing water therein for cooling the inner tube, the outer tube including a water inlet port to which water is supplied and a water outlet port spaced from the water inlet port and from which water is removed after flowing through the outer tube; and an rf induction coil for inducing the plasma in the gas passing into the tube through the sample injection port. The sample injection port comprises a capillary tube including a reduced diameter orifice, projecting into the lower end of the inner tube. The water inlet is located at the lower end of the outer tube and the rf heating coil is disposed around the outer tube above and adjacent to the water inlet.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 6061298
- Application Number:
- ON: TI85006013
- Assignee:
- Dept. of Energy
- DOE Contract Number:
- AC04-76DP03533
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION; EMISSION SPECTROSCOPY; FLAMES; PLASMA; COOLING; INDUCTION; WATER; HYDROGEN COMPOUNDS; OXYGEN COMPOUNDS; SPECTROSCOPY; 440300* - Miscellaneous Instruments- (-1989)
Citation Formats
Seliskar, C J, and Warner, D K. Low-pressure water-cooled inductively coupled plasma torch. United States: N. p., 1984.
Web.
Seliskar, C J, & Warner, D K. Low-pressure water-cooled inductively coupled plasma torch. United States.
Seliskar, C J, and Warner, D K. Thu .
"Low-pressure water-cooled inductively coupled plasma torch". United States.
@article{osti_6061298,
title = {Low-pressure water-cooled inductively coupled plasma torch},
author = {Seliskar, C J and Warner, D K},
abstractNote = {An inductively coupled plasma torch is provided which comprises an inner tube, including a sample injection port to which the sample to be tested is supplied and comprising an enlarged central portion in which the plasma flame is confined; an outer tube surrounding the inner tube and containing water therein for cooling the inner tube, the outer tube including a water inlet port to which water is supplied and a water outlet port spaced from the water inlet port and from which water is removed after flowing through the outer tube; and an rf induction coil for inducing the plasma in the gas passing into the tube through the sample injection port. The sample injection port comprises a capillary tube including a reduced diameter orifice, projecting into the lower end of the inner tube. The water inlet is located at the lower end of the outer tube and the rf heating coil is disposed around the outer tube above and adjacent to the water inlet.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Feb 16 00:00:00 EST 1984},
month = {Thu Feb 16 00:00:00 EST 1984}
}