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Glass Expansion

Glass Expansion

Glass Expansion has been manufacturing sample introduction components for ICP emission and mass spectrometers since the early 1980s. Today they support instruments from 16 manufacturers, providing sample introduction systems for over 50 different ICP and ICP-MS models. Glass Expansion products are endorsed and supplied as original equipment by most of the major ICP and ICP-MS manufacturers, and are widely used and embraced by recognized analysts throughout the ICP industry worldwide.

Reproducibility of analytical results in ICP analyses is of paramount importance. In an environment where a small change or inconsistency in a product or variable can result in a dramatic change in analytical results, design quality and reliability is essential. Glass Expansion has developed unique and proprietary manufacturing methods, which enable the production of components with the high mechanical strength and micron-level dimensional accuracy to satisfy the narrowest of analytical specifications, each and every time. GE products are recognized worldwide for their excellent precision, cost effectiveness and reproducibility of results.

Glass Expansion Nebulizers

Please click here to learn more about Glass Expansion products:

 NEBULIZERS

All Glass Expansion concentric glass nebulizers use the unique VitriCone construction for the sample channel. With the VitriCone design, the sample channel is constructed from a heavy glass capillary which is machined to very high tolerances, resulting in a uniform sample channel dimension that is resistant to clogging. The rugged, precision-machined capillary resists vibration and delivers the best possible precision, and the industry's tightest tolerances ensure that each nebulizer will perform to the same high standards as the previous one.

Glass Expansion manufactures nebulizers to operate optimally at the gas pressures and flow specified by the instrument manufacturers. Rather than manufacturing nebulizers which operate within a certain gas pressure and flow range, GE manufactures their nebulizers in accordance with your ICP specifications.

Glass Expansion SeaSpray Nebulizers

The SeaSpray and SeaSpray DC concentric nebulizer offers outstanding nebulization efficiency for trace level analyses. It offers freedom from clogging while nebulizing solutions to the limit of solubility of most mineral salts, and conferring significant sensitivity gains.

  • Material: Borosilicate glass
  • High physical reproducibility ~ 1%
  • TDS tolerance, typically up to 20%
  • High tolerance to particulates, typically up to 75um
  • Low RSD's due to highly accurate construction
  • Standard available uptake: 0.4ml/min and 2ml/min

Glass Expansion MicroMist Nebulizers

The MicroMist and MicroMist DC micro-uptake glass concentric nebulizer offers high performance for limited sample volumes. It makes routine ICP-MS Hg determinations possible and reduces matrix effects when used with Glass Expansion's Cinnabar spray chamber.

  • Material: Borosilicate glass
  • High physical reproducibility ~ 1%
  • TDS tolerance, typically up to 15%
  • Low RSD's due to highly accurate construction
  • Standard available uptake: 0.05, 0.1, 0.2, 0.4 & 0.6ml/min

Glass Expansion Conikal Nebulizers

The Conikal and Conikal DC concentric nebulizer gives the most reproducible results for standard ICP analyses. It represents the choice nebulizer for high precision, routine aqueous and organic applications.

  • Material: Borosilicate glass
  • High physical reproducibility ~ 1%
  • TDS tolerance, typically up to 5%
  • High tolerance to particulates, typically up to 75um
  • Low RSD's due to highly accurate construction
  • Standard available uptake: 1, 2 & 3ml/min

Glass Expansion Slurry Nebulizers

The Slurry and Slurry DC glass concentric nebulizer is ideal for specialized applications requiring the aspiration of slurries or suspensions. Its capillary bore is 50% larger than standard concentric nebulizer, reducing the possibility of particle blockage, while retaining excellent signal stability.

  • Material: Borosilicate glass
  • High physical reproducibility ~ 1%
  • TDS tolerance, typically ~ 1%
  • High tolerance to particulates, typically up to 150um
  • Low RSD's due to highly accurate construction
  • Slurry nebulizers have a natural liquid uptake of 6ml/min but operates best between 1.5 - 2.5ml/min

DuraMist w/ UniFit

 The DuraMist and DuraMist DC nebulizer is the most economical nebulizer for high-precision analyses involving samples digested in HF.  Recommended for samples containing up to 5% HF.

  • Material: HF-Resistant PEEK
  • High physical reproducibility ~ 2%
  • TDS tolerance, typically up to 30%
  • High tolerance to particulates, up to 75um (uptake-dependent)
  • Low RSD's due to concentric geometry
  • Uses only standard ICP argon supply pressures
  • Standard 6mm size fits standard cyclonic spray chambers. Adaptors are available for Scott type spray chambers
  • Standard available uptakes: 0.4 and 1.0ml/min

Glass Expansion PolyCon Nebulizers

The PolyCon concentric nebulizer is ideal for high precision analyses involving samples digested in HF. The PolyCon has also been used successfully in ICP desolvators such as the MCN-6000, where high temperatures are encountered. It has become a favorite in the semi conductor industry, and has enabled analysts to produce accurate (r = 0.9998) calibration curves for low-ppt levels of Na, K, Fe and Ca in 30% hydrogen peroxide.

  • Material: HF Resistant Polyimide
  • High physical reproducibility ~ 2%
  • High tolerance to particulates, up to 75um depending on uptake
  • TDS tolerance, typically ~5%
  • Low RSD's due to concentric geometry
  • Uses only standard ICP argon supply pressures
  • Standard 6mm size fits standard cyclonic spray chambers. Adaptors are available for Scott type spray chambers
  • Standard available uptakes: 0.05, 0.1, 0.2, 0.4, 0.6, 0.8, 2 & 5ml/min for samples with large particulates

OpalMist Nebulizers

The OpalMist and OpalMist DC PFA concentric nebulizer is the nebulizer of choice for high precision analyses requiring the highest chemical resistancy to HF, alkalis and organics. The high purity PFA construction makes it ideal for ultra-trace ICP-MS work.

  • Material: PFA
  • High physical reproducibility ~ 3%
  • High tolerance to particulates, up to 75um depending on uptake
  • TDS tolerance, typically up to 15%
  • Low RSD's due to concentric geometry
  • Uses only standard ICP argon supply pressures
  • Standard 6mm size fits standard cyclonic spray chambers. Adaptors are available for Scott type spray chambers
  • Standard available uptakes: 0.05, 0.1, 0.2, 0.4, 0.6 and 2ml/min

Glass Expansion Ceramic VeeSpray Nebulizers

The Ceramic VeeSpray nebulizer is made from alumina ceramic, making it ideal for HF analyses. It provides reproducible performance when working with samples containing large particulates. It has the same 6mm diameter as the standard concentric and the Alumina material makes it the most robust and abrasion resistant ICP nebulizer.

  • Material: 99.8% Alumina Ceramic
  • High physical reproducibility ~ 1%
  • TDS tolerance, typically up to 30%
  • High tolerance to particulates, typically up to 300um
  • Must be pumped - does not self aspirate
  • Design uptake range: 0.6 - 3ml/min. Operates best between 1.5 - 2.5ml/min

Please contact us at 1-800-305-0004 with your application details and ICP or ICP-MS make and model to determine the correct nebulizer for your instrument.

SPRAY CHAMBERS

Glass Expansion revolutionized spray chamber design by introducing cyclonic spray chambers. That's right, before the 'Tracey' cyclonic spray chamber, Scott-style spray chambers were the norm. The design of our cyclonic spray chambers helps you achieve sensitivity gains, reduced washout times, and reduced matrix effects not possible with other types of spray chamber.

Only Glass Expansion spray chambers provide all of these benefits:

  • Cyclonic design for best sensitivity and precision
  • Helix totally inert Teflon nebulizer interface
  • Minimal dead volume for reduced carryover, faster washout and higher sample throughput
  • Pre-set nebulizer position
  • Smooth nebulizer lock and release mechanism
  • No o-rings to replace
  • Precise ridge on wall for efficient drainage
  • Convenient UniFit drain connector

The Traceycyclonic spray chamber is Glass Expansion's standard glass cyclonic spray chamber. It gives the best sensitivity, reproducibility and lowest memory effects for standard ICP analyses.

  • Material: Borosilicate glass
  • Volume: 50ml
  • High sensitivity and reduced matrix effects
  • Physical reproducibility ~1%
  • Active scouring of internal surfaces by sample
  • Faster washout than older coaxial chamber designs
  • Low RSD's due to highly accurate construction
  • Positive stop for reproducible nebulizer insertion
  • Application uptake range 0.2 to 3.0ml/min

The Jacketed Traceyspray chamber is made with an external jacket for the introduction of coolant for temperature control. Thermostatting to constant temperature helps ensure highly reproducible results and long term stability. Can also be cooled to suppress volatilization, allowing the direct aspiration of highly volatile solvents such as naphtha and petrol/gasoline.

The PFA44spray chamber can be teamed with the OpalMist PFA nebulizer to form the highest purity, most inert sample introduction system available. There is a system to suit most ICP-MS models.

  • Made from ultra-pure PFA - ideal for ultra-trace ICP-MS analyses
  • Totally inert - impervious to organic solvents and strong acids, even HF
  • Established Tracey cyclonic design ensures excellent sensitivity and precision
  • Fast washout enables highest possible sample throughput
  • Incorporates Helix nebulizer interface - no dead volume, smooth lock and release mechanism, no o'rings to replace
  • Volume 44 mL

The Tracey TFE spray chamber replaces the old polypropylene HF-resistant spray chamber. It is made from PTFE (Teflon) which is more chemically resistant than polypropylene. The Tracey TFE spray chambers are specially treated to ensure efficient drainage and they offer better sensitivity and precision than the old polypropylene spray chambers. They can be teamed with the PolyCon HF-resistant nebulizers to form the ideal chemically inert sample introduction system for ICP-OES. There is a system available to suit most ICP-OES models.

  • Made from totally inert PTFE - impervious to organic solvents and strong acids, even HF
  • Established Tracey cyclonic design ensures excellent sensitivity and precision
  • Fast washout enables highest possible sample throughput
  • Incorporates Helix nebulizer interface - no dead volume, smooth lock and release mechanism, no o'rings to replace
  • Volume 50 mL

The Twister cyclonic spray chamber features a central transfer tube which acts as a secondary particle separator helping separate larger aerosol particles from the sample. This reduces solvent load in the plasma without compromising detection limits.

  • Material: Borosilicate glass
  • Volume: 50ml
  • Physical reproducibility ~1%
  • Low RSD's - highly accurate construction similar to Tracey cyclonic, except with central transfer tube
  • Application uptake range 0.2 to 3.0ml/min

The Jacketed Twister spray chamber is made with an external jacket for the introduction of coolant for temperature control. Thermostatting to constant temperature helps ensure highly reproducible results and long term stability. Can also be cooled to suppress volatilization, allowing the direct aspiration of highly volatile solvents such as naphtha and petrol/gasoline. Recommended for analyses of organics samples.

The Cinnabarspray chamber is a mini-cyclonic spray chamber which gives good sensitivity at very low uptakes. The Cinnabar's design and low volume is ideal for the reduction of memory and matrix effects and very fast washout.

  • Material: Borosilicate glass
  • Volume: 20ml
  • Physical reproducibility ~1%
  • Matrix effects 5 times lower than with coaxial chambers
  • Low RSD's due to highly accurate construction
  • Positive stop for reproducible nebulizer insertion
  • Application uptake range ~20 to 600 microlitres/min
  • Ideal for use with MicroMist nebulizers

The Jacketed Cinnabar spray chamber is made with an external jacket for the introduction of coolant for temperature control. Thermostatting to constant temperature helps ensure highly reproducible results and long term stability. Can also be cooled to suppress volatilization, allowing the direct aspiration of highly volatile solvents such as naphtha and petrol/gasoline. Ideal for use with MicroMist nebulizers.

The Twinnabar cyclonic spray chamber is a low volume spray chamber with a central transfer tube (or baffle), combining the benfits of the Twister and the Cinnabar. It combines excellent precision with a very fast washout.

  • Material: Borosilicate glass
  • Volume: 20ml
  • Physical reproducibility ~1%
  • Low RSD's due to highly accurate construction
  • Application uptake range ~20 to 1000 microlitres/min

TORCHES

Glass Expansion fully demountable torches, with all components being removable and replaceable, were an industry first, enabling you to make operating and using torches more efficient and less expensive. With the high-precision ground torch base, you can replace any of the three individual tubes while maintaining accurate alignment and concentricity. All replacement components are so precisely manufactured that you don’t need any further optimization after you’ve replaced a tube. Changing torch tubes is so quick and easy, reducing down time and increasing instrument productivity.

Glass Expansion D-Torch Demountable Torches

TheD-Torch is a revolutionary new demountable torch design. It provides the benefits of a fully demountable torch at a significantly lower cost. Interchangeable outer tubes made of quartz or ceramic are available. The ceramic outer tube is of particular benefit for the analysis of wear metals in engine oils, where quartz outer tubes often suffer from short lifetime. It is also beneficial for Si determinations, where quartz outer tubes often produce high background signals. In general the ceramic outer tube has a much longer lifetime, greatly reducing interruptions and downtime due to torch failure.

  • Demountable outer tube - why replace the entire torch when just the outer tube wears?
  • Interchangeable quartz and ceramic outer tubes.
  • Much lower cost than other demountable torches.
  • Choose the optimum injector for your application.

The D-Torch is now available for the PerkinElmer Optima 4300/5300/7300 V and Thermo Fisher iCAP 6000. We will soon be releasing the D-Torch for other ICP models. Please check back.

Glass Expansion Fully Demountable Torches

Constructively versatile, Glass Expansion Fully Demountable Torches can be quickly and easily assembled and disassembled for storage and cleaning. Instead of storing a variety of torches for different applications, simply change the torch tubes to suit your application needs. Torch design consistency means that no realignment is needed. Interchangeable injector, inner and outer tubes means you no longer have to throw out an entire torch once a tube has deteriorated. Simply replace the tubes. Quartz and alumina injectors in varying internal diameters are conveniently available. Ceramic tubes are also available.

  • Highly accurate construction
  • Performance equal to or better than 1-piece torches
  • All components removable and replaceable
  • Outer, Inner and Injector Tubes separately replaced in seconds
  • Lowest running costs and ICP downtime
  • Ceramic tubes available - reduces silicon background, low RSDs, long tube life

Please contact us at 1-800-305-0004 with your ICP or ICP-MS make and model to determine the correct fully demountable torch system for your instrument.

Glass Expansion Semi Demountable Torches

Usually comprises a quartz torch body, a torch adaptor, an injector and GazFit connectors. All these parts are replaceable, making the semi demountable torch more cost effective than the fixed quartz torch. Essentially the design of the torch for standard analyses and HF analyses is the same, with the exception of the injector material. The torch for aqueous and organics analyses comes with a quartz injector, while the torch version for HF analyses comes with an alumina injector. Hence simply interchange between quartz and alumina injectors for appropriate analyses. Several internal diameters for both quartz and alumina injectors are also available.

  • Highly accurate construction
  • Lowest running cost than 1-piece torches

Please contact us at 1-800-305-0004 with your ICP or ICP-MS make and model to determine the correct semi demountable torch system for your instrument.

 

RF COILS

Glass Expansion Coils are produced from the highest quality raw materials and plated using prescribed methods to obtain maximum RF (Radio Frequency) transmission efficiency.

From a conductivity point, the best material to make a coil from would be pure silver but, due to the high cost this is impractical. Copper is the next best material, but the copper must be of an acceptable grade and contain a minimum of contaminants. The copper used by Glass Expansion has a purity of 99.9% minimum. Once the base material is fixed, the environmental conditions under which the coil is placed need to be considered. The environmental conditions in the torch box include corrosive gases and high temperatures, and vary between instruments and plasma orientation (radial or axial). This leads to the use of plating of the copper coils to help prevent unwanted corrosion, with the two most common materials being silver and gold. Different plating procedures result in varying degrees of conductivity, so the plating process is vital to the conductivity of the coil. The procedure used by Glass Expansion does not use additive brighteners or corrosion inhibitors in the plating bath. This produces a dull coating, which is then manually polished to give a final bright appearance, resulting in a coil that retains the highest possible IACS rating.

RF coils should be continually cleaned to remove the buildup of surface oxidation. The rate of corrosion is higher for copper, followed by silver, then gold. There are however, distinct advantages to using silver. The plating process for silver leaves a more even surface, allowing fewer sites for chemical attack, and the conductivity of silver is much higher than that of gold. Gold does offer a greater corrosion protection in more aggressive environments.

The packaging of Glass Expansion coils ensures that your coil arrives at your site, in the correct dimensions. All coils are shipped with a coil former, which holds the coil in the correct dimensions during shipping and installation. The tool can also be used to check the dimensions from time to time, or to reset after an accidental knock.

Regular replacement of corroded RF coils reduces the load on the RF generating system, and increases energy transfer, resulting in a more robust plasma. A more robust (hotter) plasma, in turn, will result in better matrix decomposition, lower oxide levels and better ionization for ICP-MS, and higher analytical emission line intensities for ICP-OES.