Learn about Glass Expansion spray chambers

Helix - the modern interface between nebulizer and spray chamber

Download our Helix flyer PDF


Assembling your Glass Expansion ICP Nebulizer and Spray Chamber


Most ICP spectrometers rely on an o'ring seal between the nebulizer and the spray chamber. This design may result in extended washout times due to dead volume around the seal. The Helix eliminates dead volume, resulting in faster washout times and higher sample throughput. Also, even the most chemically resistant o'rings are prone to wear and tear and require regular replacement. They also tend to bond to a glass nebulizer, making the nebulizer difficult to remove. To eliminate all of these problems, Glass Expansion has developed Helix - the user friendly nebulizer/spray chamber interface.

Inert seal = no dead volume

Helix fittings can only be used with Glass Expansion spray chambers incorporating the Helix side arm. They cannot be used with spray chambers designed with an o'ring seal.

Part numbers for glass spray chambers with Helix can be identified by the letters HE at the end, as in 20-809-0224HE. All of the Glass Expansion PFTE and PFA spray chambers are supplied with a Helix. They do not have the HE suffix since they are not available without Helix.

The Secrets of the Glass Expansion spray chamber

Only Glass Expansion spray chambers provide all of these benefits:

Nebulizer adaptors for glass Tracey and Twister spray chambers with o'ring seal

All glass Tracey and Twister spray chambers shown in this website with an o'ring seal nebulizer adaptor, come standard with nebulizer adaptor P/N 21-808-0256. This adaptor is suitable for use with 6mm glass concentric nebulizers. Nebulizer adaptor P/N 21-808-0257 is required when using these glass Tracey and Twister spray chambers with VeeSpray, OpalMist and PolyCon nebulizers.

Nebulizer adaptors for glass Cinnabar and Twinnabar spray chambers with o'ring seal

All glass Cinnabar and Twinnabar spray chambers shown in this website with an o'ring seal nebulizer adaptor, come standard with nebulizer adaptor P/N 21-808-0259. This adaptor is suitable for use with 6mm glass concentric nebulizers. Nebulizer adaptor P/N 21-808-0944 is required when using these glass Cinnabar and Twinnabar spray chambers with OpalMist and PolyCon nebulizers.

Nebulizer adaptors for HF Tracey spray chambers with o'ring seal

All HF Tracey spray chambers with o'ring seal come standard with nebulizer adaptor P/N 21-808-0257. This adaptor is suitable for use with VeeSpray, OpalMist and PolyCon nebulizers. Nebulizer adaptor P/N 21-808-0256 is required when using HF Tracey spray chambers with 6mm glass concentric nebulizers.

Nebulizer adaptors for HF Cinnabar spray chambers with o'ring seal

All HF Cinnabar spray chambers with o'ring seal come standard with nebulizer adaptor P/N 21-808-0944. This adaptor is suitable for use with OpalMist and PolyCon nebulizers. Nebulizer adaptor P/N 21-808-0259 is required when using HF Cinnabar spray chambers with 6mm glass nebulizers.

The UniFit connector

For your convenience and safety, each Glass Expansion spray chamber with standard 4mm drain tube is supplied with a UniFit connector. The UniFit connector efficiently connects a 0.75mm ID x 1.3mm OD drain tube to the spray chamber.

To order spare UniFit connectors, order P/N UFT-075 for a pack of 3 connectors.

Customer comments

From a maintenance standpoint, this new system is much easier to handle than the old system since we've gotten rid of the O-Rings and replaced them with the Helix fitting. That alone could save us a few dollars now that we don't have to force the nebulizer through the O-Rings and risk breaking if it's not done properly (not to mention we don't have to purchase O-Rings anymore).

Reference material manufacturer - USA

We actually ordered a spray chamber with the Helix system on it that we are really enjoying. We will be ordering another one for our other ICP shortly.

Environmental Laboratory - USA