Glass Expansion Spray Chambers by Type

HydraMist- Simultaneous Cold Vapor/Pneumatic Nebulization Spray Chamber

The Glass Expansion HydraMist is a sensitive, simple-to-use spray chamber for Inductively Coupled Plasma (ICP) that allows simultaneous operation of both conventional pneumatic nebulization and cold-vapor/hydride generation. Cold vapor generation can provide more than 10-fold improvement in sensitivity on ICP for cold vapor forming elements such As, Sb, Se, Tl and Hg. The generation of volatile species of these elements results in increased analyte loading of the analytical plasma giving lower detection limits.

The design of the HydraMist spray chamber is based upon Glass Expansionís industry-standard cyclonic spray chamber, giving excellent sensitivity and short-term analytical precision with fast washout. The HydraMist spray chamber features a secondary inlet port that mixes the aerosolized sample and liquid reductant inside the spray chamber for rapid conversion of the As, Sb, Se, Tl and Hg analytes into volatile hydride species. The unique drain design ensures fast, complete removal of waste from the spray chamber, eliminating excess hydrogen build-up that causes sample reflux degrading analytical precision.

The HydraMist spray chamber features:

With a simple to setup with fast changeover, the HydraMist Spray chamber can be operated in one of 3 different modes. The simple mode provides (figure 1.) simultaneous hydride and pneumatic nebulization mode with 5 fold improvements for detection limits of the hydride forming elements, while maintaining analytical performance for non-hydride elements. With the addtion of an extra sample input and t-piece (figure 2.) the HyrdraMist provides a sensitive, simultaneous cold vapor and pneumatic nebulization mode with more than 10 fold improvements in detection limits for the cold vapor elements without compromising performance of non-hydride forming elements. Finally, it can be used as a conventional cyclonic spray chamber with pneumatic nebulization.


Elements λ Pneumatic Nebulization ug/L Sensitive simultaneous hydride/pneumatic nebulization mode ug/L Simple simultaneous hydride/pneumatic nebulization mode ug/L
As 188 3.7 0.2 0.5
Hg 194 1.2 0.07 0.1
Sb 206 3.6 0.2 0.4
Se 196 2.9 0.2 0.5
Cd 214 0.1 0.1 0.1
Co 238 0.4 0.5 0.7
Cr 267 0.5 0.3 0.3
Cu 327 0.5 0.6 0.6
Fe 238 0.4 0.3 0.4
Mn 257 0.05 0.04 0.03
Mo 202 0.5 0.7 0.7
Ni 231 0.7 1.0 1.0
Pb 220 1.9 2.3 2.6
Tl 190 2.1 0.2 0.2
Zn 213 0.2 0.2 0.2
Table 1. Measured 3u detection limits (in ug/L) with an Agilent Technologies 5100 SVDV in axial mode at 1.4 kW RF power and 20 second integration time
Figure 1. Sensitive simultaneous cold vapor/pneumatic nebulization mode
Figure 2. Simple simultaneous cold vapor/pneumatic nebulization mode

Click on your instrument model to see the available Hydride Kit's with pricing:

Manufacturer Model
Agilent (Varian) 5100/5110
Thermo iCAP 7000 Duo

Download the HydraMist Simultaneous Cold Vapor/Pneumatic Nebulization Spray Chamber Flyer

Download the HydraMist Simultaneous Cold Vapor/Pneumatic Nebulization Spray Chamber Poster


Please email us at enquiries@geicp.com for more information.