Abstract: A method of determining an expected response to injecting a beam of ions of a species of interest into a static field mass filter of a mass spectrometer including a mass analyser is provided. The method includes: measuring an intensity of ions injected into the static field mass filter for various combinations of test ion species, test magnetic field strengths, and test electric field strengths; determining electric field strengths corresponding to an intensity equal to a first and a second fraction of the measured peak intensity; based on a predetermined relationship between magnetic field strength, electric field strength and centre mass of the static field mass filter, determining mass values corresponding to the determined electric field strengths; and interpolating, from said mass values and for each ion species and for at least one of the test magnetic field strengths, expected mass values for an ion species of interest.

Abstract: A method of tuning a static field mass filter of a mass spectrometer, the static field mass filter having a first Wien filter and a second Wien filter. The method comprises injecting a beam of ions into the static field mass filter, applying a magnetic and an electric field in the first and second Wien filters, adjusting a second lens of the filter.

Abstract: Disclosed is a plasma sampling interface for an inductively coupled mass spectrometer, comprising a housing having entry and exit openings for respectively introducing and releasing ions from the chamber, and a sampler mounted on the housing so as to be disposed adjacent to plasma generated by an inductively coupled plasma source, wherein the entry opening is provided in a cooling plate that is integral to the housing and that is formed from bronze. Also disclosed is a bronze cooling plate for receiving and cooling a plasma sampler in an inductively coupled mass spectrometer, and a mass spectrometer that comprises a plasma sampling interface as disclosed.

Abstract: Disclosed is a plasma sampling interface for an inductively coupled mass spectrometer, comprising a housing having entry and exit openings for respectively introducing and releasing ions from the chamber, and a sampler mounted on the housing so as to be disposed adjacent to plasma generated by an inductively coupled plasma source, wherein the entry opening is provided in a cooling plate that is integral to the housing and that is formed from bronze. Also disclosed is a bronze cooling plate for receiving and cooling a plasma sampler in an inductively coupled mass spectrometer, and a mass spectrometer that comprises a plasma sampling interface as disclosed.