A sensor for sensing ions, including a circuit board assembly, a core, a cage at least partially surrounding the core, a first wire wrapped around the core and connected to the circuit board assembly, a second wire wrapped around the core and connected to the circuit board assembly, and a third wire connecting the cage to the circuit board assembly.

A solution-cathode glow discharge (SCGD) spectrometry apparatus may comprise an SCGD source and a mass or ion mobility spectrometer. A method for ionizing a molecular analyte may comprise contacting the molecular analyte with a plasma discharge to form ions and separating the ions in a mass spectrometer or ion mobility spectrometer. The contacting step may occur under atmospheric pressure and/or ambient conditions. The molecular analyte may be fragmented by the plasma discharge.

A chemical trace detection system includes: a drift tube; a detector disposed within the drift tube; a voltage source to produce an electrical field in the drift tube; an ionizer to establish an ionization region adjacent to the electrical field; and a desorber including a sample holder to hold a sample in or adjacent to the ionization region and a sample heater to desorb particles of the sample held in the sample holder such that the desorbed particles are introduced directly into the ionization region from the sample holder to form ionized particles that are forced toward the detector by the electrical field. A regenerable dryer assembly for supplying dry drift gas to an ion mobility spectrometer is also provided that includes a regenerable dessicant material.

A chemical trace detection system includes: a drift tube; a detector disposed within the drift tube; a voltage source to produce an electrical field in the drift tube; an ionizer to establish an ionization region adjacent to the electrical field; and a desorber including a sample holder to hold a sample in or adjacent to the ionization region and a sample heater to desorb particles of the sample held in the sample holder such that the desorbed particles are introduced directly into the ionization region from the sample holder to form ionized particles that are forced toward the detector by the electrical field. A regenerable dryer assembly for supplying dry drift gas to an ion mobility spectrometer is also provided that includes a regenerable dessicant material.

A molecular detection apparatus according to an arrangement includes: a collection unit collecting a detection target gas containing a molecule to be detected; a detector including a detection cell that has an organic probe provided in a sensor unit, the organic probe capturing the collected molecule, and a discriminator discriminating the molecule by a detection signal generated by the molecule being captured by the organic probe of the detection cell. The detection cell has the organic probe including a dicyanovinyl structure or a coumarin structure.

A molecular detection apparatus according to an arrangement includes: a collection unit collecting a detection target gas containing a molecule to be detected; a detector including a detection cell that has an organic probe provided in a sensor unit, the organic probe capturing the collected molecule, and a discriminator discriminating the molecule by a detection signal generated by the molecule being captured by the organic probe of the detection cell. The detection cell has the organic probe including a dicyanovinyl structure or a coumarin structure.

Disclosed herein are embodiments of a system for selectively ionizing samples that may comprise a plurality of different analytes that are not normally detectable using the same ionization technique. The disclosed system comprises a unique split flow tube that can be coupled with a plurality of ionization sources to facilitate using different ionization techniques for the same sample. Also disclosed herein are embodiments of a method for determining the presence of analytes in a sample, wherein the number and type of detectable analytes that can be identified is increased and sensitivity and selectivity are not sacrificed.

Systems and methods are provided for analysis of metal contaminants within a processing chamber. Such systems and methods can include a vacuum system and valve attached to a processing chamber. The vacuum system and valve can effect a reduction in a pressure within a sampling chamber, an opening, while a process is in effect within a processing chamber connected to the sampling chamber, of a first fluid connection from the sampling chamber to the processing chamber such that a fluid ingresses from the processing chamber into the sampling chamber, a closing of the first fluid connection, an opening a second fluid connection from the sampling chamber to an inductively coupled plasma mass spectrometer (ICP-MS) such that the fluid egresses from the sampling chamber into the ICP-MS, an identification, via the ICP-MS, of a presence of trace elements within the fluid, and responsive to the identified presence of trace elements, performance of a corrective action associated with the processing chamber.

Systems and methods are provided for analysis of metal contaminants within a processing chamber. Such systems and methods can include a vacuum system and valve attached to a processing chamber. The vacuum system and valve can effect a reduction in a pressure within a sampling chamber, an opening, while a process is in effect within a processing chamber connected to the sampling chamber, of a first fluid connection from the sampling chamber to the processing chamber such that a fluid ingresses from the processing chamber into the sampling chamber, a closing of the first fluid connection, an opening a second fluid connection from the sampling chamber to an inductively coupled plasma mass spectrometer (ICP-MS) such that the fluid egresses from the sampling chamber into the ICP-MS, an identification, via the ICP-MS, of a presence of trace elements within the fluid, and responsive to the identified presence of trace elements, performance of a corrective action associated with the processing chamber.

The present disclosure provides a sample desorption ionization device and analysis method for a mass spectrometer. The device has a first gas pressure region and a second gas pressure region lower than the first gas pressure region. The device includes: a heating desorption device, carrying a sample and heating the sample, an analyte in the sample is desorbed from the sample under a heating action and then enters the first gas pressure region; a vacuum interface component, connected with the first gas pressure region and the second gas pressure region, and causing the analyte to enter the second gas pressure region from the first gas pressure region under the drive of a gas flow; and a soft ionization source, converting gas molecules in the second gas pressure region into activated gas molecules, the analyte entering the second gas pressure region realizes soft ionization after interacting with the activated gas molecules.