Helix Scientific Frequency Asked Questions (FAQ’s)

1: Can the Helix Scientific “Jet-Stream” Dry Down Evaporator” be used with any 96 or 384 well plates?

Yes, the Helix Scientific “Jet-Stream” Dry Down Evaporator is designed to be used with any standard formatted 96 or 384 well plate. However, there are two separate models to suit each type of plate.

2: Does the Helix Scientific “Jet-Stream” Dry Down Evaporator need to be hooked up to a gas supply?

No, the Helix Scientific “Jet-Stream” Dry Down Evaporator can gently heat the plate to assist with evaporation, however, having a steady gas flow greatly improves the efficiency and length of dry down cycle.

3: Can the Helix Scientific “Jet-Stream” Dry Down Evaporator be used in conjunction with a robotic workstation?

No, Helix Scientific “Jet-Stream” Dry Down Evaporator is designed to be manually operated. The gassing hood needs to be manually adjusted using the adjusting screw to move the needles up and down.

4: Can any gas be used for evaporation?

For safety reasons it is recommended that the gas used for evaporation be inert. We typically recommend Nitrogen, especially when evaporating solvents.

If aqueous solutions are being evaporated them clean, filtered compressed air is acceptable.

5: Should the Helix Scientific “Jet-Stream” Dry Down Evaporator be positioned in a fume-hood?

If the dry down process involves the removal of solvents it is recommended that the Helix Scientific “Jet-Stream” Dry Down Evaporator be placed in a fume cabinet.

If aqueous solutions are being evaporated positioning the Helix Scientific “Jet-Stream” Dry Down Evaporator on a well ventilated bench top is acceptable.

6: Are there any serviceable parts in the Helix Scientific “Jet-Stream” Dry Down Evaporator?

No, all parts are sealed for life. It is prudent to ensure that the needle tips remain clean. As such, periodic cleaning using a spray solvent cleaner is recommended. Do not wipe the needles with a cloth or paper towel as this may snag the needles and bend them. Allow to air dry.

Periodically check the silicone tubing for cracks and leaks.

7: Can multiple Helix Scientific “Jet-Stream” Dry Down Evaporator be hooked up to the same gas supply?

Yes, multiple Helix Scientific “Jet-Stream” Dry Down Evaporator can be hooked up using the same gas supply. Be sure that the pressure and flow and adjusted to compensate for additional units.

8: Can the Helix Scientific “Jet-Stream” Dry Down Evaporator be used for liquid dispensing or transfer of samples?

No, the Helix Scientific “Jet-Stream” Dry Down Evaporator is specifically designed to efficiently dry down samples in either a 96 or 384 well plate.

9: Should different temperature and gas flow setting be used for different solvents?

Yes, refer to the instruction manual supplied with the instrument or download a copy. Several examples are listed below:

10: Can the Helix Scientific “Jet-Stream” Dry Down Evaporator be left on when not in use?

It is advisable to turn the instrument off when not in use and turn off the gas supply, this will help ensure a long heater life and conserve gas.