In ICP-MS analysis, the sample is usually introduced into the argon stream as an aerosol of aqueous solution and then into the central region of argon isoliths excited by radio frequency energy at atmospheric pressure. The high temperature of the plasma causes desolvation, vaporization dissociation and ionization of the sample. Part of the plasma enters the vacuum system through different pressure regions, and the sampling cone is responsible for effectively transmitting the ions in the plasma to the mass spectrum section.

Sampling cones are usually made of metals such as Ni, Al, Cu, Pt, among which Ni cones are most used.
Sampling cone we can not only do a single piece can also do components

Sampling cones are usually made of metals such as Ni, Al, Cu, Pt, among which Ni cones are most used. In order to meet the requirements of the ICP-MS ion collection interface, the sampling cone needs to have several characteristics:

- Maximization of the passage of generated ions;
- maintaining the ionic integrity of the sample;
- Keep the yields of oxides and secondary ions as low as possible;
- make the secondary discharge of the plasma as small as possible;
- Resistance to blockage;

Often the “standard” configuration due to the balance between cost and performance.
Options can include a solid nickel tip with copper base, solid nickel tip with a nickelplated copper base (see below), or a solid nickel tip and base.
Suitable for the most common applications (routine aqueous environmental samples,