Syringe accessory for transfer of air sensitive materials

A method of transferring a fluid, comprising:

• obtaining a fluid transfer apparatus, the fluid transfer apparatus comprising:
• an airlock component having a cylindrical body, the cylindrical body having a first end, a second end, and a hollow tube disposed between the first end and the second end, wherein the hollow tube has an interior surface and an exterior surface;
• an annular opening at the first end of the cylindrical body;
• a gas inlet aperture from the exterior surface of the hollow tube to the interior surface of hollow tube;
• a gas outlet aperture from the interior surface of the hollow tube to the exterior surface of the hollow tube;
• an inwardly-facing airtight material coupled to the interior surface of the hollow tube;
• a septum coupled to the second end of the cylindrical body;
• and
• an attachment member having a first end that is coupled to the second end of the cylindrical body;
• coupling a second end of the attachment member to an exterior surface of a container holding the fluid;
• inserting a syringe coupled to a needle through the annular opening at the first end of the cylindrical body;
• introducing an inert gas flow into the hollow tube, wherein the inert gas flow enters the hollow tube through the gas inlet aperture, and exits the hollow tube through the gas outlet aperture;
• moving the syringe forward through the hollow tube toward the second end of the cylindrical body;
• puncturing the septum with the needle;
• moving the syringe forward through the hollow tube so that the needle contacts the fluid in the container.
• collecting, by the syringe, a volume of the fluid;
• moving the syringe backward through the hollow tube until the needle is inside the hollow tube;
• and
• uncoupling the attachment member from the container.

An article of manufacture, comprising:

• a syringe having a plunger, a barrel, and a tip;
• a needle coupled to the tip of the syringe;
• and
• a fluid transfer apparatus, comprising:
• an airlock component having a cylindrical body, the cylindrical body having a first end, a second end, and a hollow tube disposed between the first end and the second end, wherein the hollow tube has an interior surface and an exterior surface;
• an annular opening at the first end of the cylindrical body;
• a gas inlet aperture from the exterior surface of the hollow tube to the interior surface of hollow tube;
• a gas outlet aperture from the interior surface of the hollow tube to the exterior surface of the hollow tube;
• an inwardly-facing airtight material coupled to the interior surface of the hollow tube;
• and
• a septum coupled to the second end of the cylindrical body.