Abstract: A treatment delivery system includes a fluid delivery system connected to a first fluid reservoir and a second fluid reservoir. The system directs a first fluid from the first fluid reservoir to a treatment site and directs a second fluid from the second fluid reservoir to the treatment site and a control unit to control the fluid delivery system according to a treatment process comprising a flow of the first fluid and the second fluid, the treatment process including multiple phases. A first phase includes a controlled delivery of the first fluid from the first fluid reservoir to the treatment site. A second phase of the plurality of phases includes a controlled delivery of the second fluid from the second fluid reservoir to the treatment site, the control unit automatically activating a transition from at least the first phase to the second phase.

Abstract: A torch device is provided for use in preparing a sample of a gas or vapor for analysis by an analyzer. The torch device is comprised of an elongated cylindrical body with an inductively coupled plasma generating device located at its output or forward section. The torch includes a first tubular element for separately feeding a sample of reactive gas or vapor into a mixing chamber located rearward of said plasma generating means, a second tubular element for separately feeding a nabulizer flow of a plasma gas and including water or solvent vapor or aerosol thereof into the mixing chamber to thereby mix with said sample, and a third tubular element for maintaining a first sheath of plasma gas concentrically about the sample mixture as it enters the plasma generating device for dissociation therein by a plasma flame, including a fourth tubular element for maintaining a second sheath of plasma gas around the first sheath as a coolant prior to introduction of ions formed by dissociation into the analyzer.

Abstract: The invention provides a mass spectrometer adapted for the elemental analysis of a sample in which ions are formed from the sample in an inductively coupled plasma (ICP). The flame of the plasma (14) is directed against the front surface (30) of a cone (19), and ions are sampled from the plasma through a hole (16) in the apex of the cone. In order to reduce the intensity of the background mass spectra, the rear surface (32) of the inside of the cone is polished to a surface finish of 5 microns or better, at least in the vicinity of the hole.