Dual balance electrodynamic trap with enhanced safety and modularity

An apparatus for use in a dual balance electrode trap, the apparatus comprising:

• an outer chamber comprising a top surface, a bottom surface, at least one sidewall surface extending between the top surface and the bottom surface, at least one optical port in the sidewall surface, and a plurality of electrical feedthrough ports in the sidewall surface;
• a droplet dispenser holder removably coupled to the top surface of the outer chamber, wherein the droplet dispenser holder comprises a top surface, a bottom surface, and a through hole that extends from the dispenser holder top surface to the droplet dispenser bottom surface, and wherein the through hole has a larger diameter portion adjacent to the droplet dispenser holder top surface and a smaller diameter portion adjacent to the droplet dispenser holder bottom surface;
• and
• a rod holder comprising a central opening and four peripheral openings that are sized and shaped to allow four respective quadrupole metal rods to pass therethrough,
• wherein the rod holder is configured to be removably coupled to the quadrupole metal rods so that a location of the rod holder relative to the metal rods is adjustable, and
• wherein the rod holder further comprises four threaded openings, each one of the four threaded openings being in communication with a respective one of the four peripheral openings, and wherein the four threaded openings are sized and shaped to allow a set screw to pass therethrough in order to hold the four respective quadrupole metal rods in place relative to the rod holder.

An apparatus for use in a dual balance electrode trap, the apparatus comprising:

• an outer chamber comprising a top surface, a bottom surface, at least one sidewall surface extending between the top surface and the bottom surface, at least one optical port in the sidewall surface, and a plurality of electrical feedthrough ports in the sidewall surface;
• a droplet dispenser holder removably coupled to the top surface of the outer chamber, wherein the droplet dispenser holder comprises a top surface, a bottom surface, and a through hole that extends from the dispenser holder top surface to the droplet dispenser bottom surface, and wherein the through hole has a larger diameter portion adjacent to the droplet dispenser holder top surface and a smaller diameter portion adjacent to the droplet dispenser holder bottom surface;
• and
• a rod holder comprising a central opening and four peripheral openings that are sized and shaped to allow four respective quadrupole metal rods to pass therethrough,
• wherein the rod holder is configured to be removably coupled to the quadrupole metal rods so that a location of the rod holder relative to the metal rods is adjustable, and
• wherein the droplet dispenser holder is made of a non-conducting material.

An apparatus for use in a dual balance electrode trap, the apparatus comprising:

• an outer chamber comprising a top surface, a bottom surface, at least one sidewall surface extending between the top surface and the bottom surface, at least one optical port in the sidewall surface, and a plurality of electrical feedthrough ports in the sidewall surface;
• a droplet dispenser holder removably coupled to the top surface of the outer chamber, wherein the droplet dispenser holder comprises a top surface, a bottom surface, and a through hole that extends from the dispenser holder top surface to the droplet dispenser bottom surface, and wherein the through hole has a larger diameter portion adjacent to the droplet dispenser holder top surface and a smaller diameter portion adjacent to the droplet dispenser holder bottom surface;
• and
• a plurality of rod holders, each one of the rod holders comprising a central opening and four peripheral openings that are sized and shaped to allow four respective quadrupole metal rods to pass therethrough,
• wherein the plurality of rod holders is configured to be removably coupled to the quadrupole metal rods at a respective plurality of locations along a length of the quadrupole metal rods so that locations of the rod holders relative to the metal rods is adjustable.