NEWS
New DuraMist™ Inert Nebulizer
The DuraMist nebulizer was added to the product line in 2011.
The DuraMist is a new model of HF-resistant nebulizer (up to 5%
HF), providing excellent sensitivity and precision at an affordable
price. It is a concentric, self-aspirating nebulizer and is compatible
with all ICP models. Its ability to run samples with up to 30% total
dissolved solids without blockage makes it an effective universal
nebulizer. The strength and rigidity of the PEEK material allow the
DuraMist to be manufactured to very tight tolerances, enabling
it to approximate the performance of our SeaSpray nebulizer,
the worldwide market-leading high performance glass nebulizer.
The DuraMist is shown in Figure 6 and a detailed summary of its
performance can be found in the October 2011 Newsletter. Figure 6: DuraMist inert nebulizer
Nebulizer Selection
This section will briefly summarize the characteristics of each Glass Expansion nebulizer. When selecting a nebulizer for a specific
application, you should consider a number of characteristics as follows:
• Tolerance to total dissolved solids (TDS)
• Tolerance to particulates
• Tolerance to hydrofluoric acid (HF)
• Precision
• Purity
• Robustness
• Material
Table I compares all Glass Expansion nebulizers with respect to these characteristics.
Nebulizer TD S (%) Particulates (μm) HF Precision Purity Robustness Material
Conikal 5 75 No High Good Good Glass
SeaSpray 20 75 No High Good Good Glass
MicroMist 15 40* No High Good Good Glass
Slurry 1 150 No High Good Good Glass
OpalMist 15 75* Yes High Excellent Good PFA
PolyCon 5 75* Yes High Good Good Polyimide
DuraMist 30 75* Yes High Good Good PEEK
Ceramic VeeSpray 30 300 Yes Moderate Good Excellent Ceramic
* Varies with nebulizer uptake
Table 1: Comparison of Glass Expansion nebulizers.
All of these characteristics were considered when designing our helpful (and popular) Nebulizer Selection Guide (Figure 7). Following
this flow chart will help the ICP analyst choose the most suitable nebulizer for a specific application. We also now have an interactive
selection guide, compatible with your iPhone, iPad and Android devices, which can be downloaded for free from the Apple App Store
or Google Play. Like the flow chart, this application will select the nebulizer (and spray chamber) that will provide the best performance,
but it will also provide you with a photo and P/N of the nebulizer suitable for your model ICP-OES or ICP-MS.
www.geicp.com Glass Expansion Newsletter | Issue 31 | page 3
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