Patent ID: 7572999

Claim:
An inductively-coupled plasma torch for introducing a sample into inductively-coupled plasma through an injector tube, said injector tube comprising: an inner injector tube, the inside of which (a) has a capillary tube extending therethrough for introducing a gaseous sample, and (b) provides a flow path for make-up gas; and an outer injector tube for introducing an atomized solution sample or a dry aerosol sample, disposed outside said inner injector tube integrally and coaxially therewith, wherein said inner injector tube comprises a make-up gas tube for said make-up gas, disposed coaxially within said inner injector tube, and said capillary tube is disposed coaxially within said make-up gas tube, wherein said inner injector tube comprises a heater for keeping said make-up gas in a high temperature, provided between said inner injector tube and said make-up gas tube, wherein said heater comprises a thermal homogenizing pipe having a heater wire and a temperature sensor and/or thermal homogenizing material.