Trace Gas Analyzers

VICI Trace Gas Analyzer
VICI Trace Gas Analyzers
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  • Turnkey applied gas chromatograph
  • Suitable for lab, movile, or process application
  • MDQs for most analytes < 1 ppb
  • Fully integrated, stand-alone operation
  • Fast temperature zones

VICI Trace Gas Analyzers (TGAs) are designed for use in high purity and ultra high purity analysis. Each instrument is fully configured and tested per user requirements. A full documentation package delivered with each instrument includes a method validation report, capability data, bill of materials, and method parameters.

Turnkey Analyzer

Configurations for most bulk, specialty, and electronics gases are available. Standard configurations include He, H2, N2, Ar, O2, CO, CO2, CH4, C2H4, C3H6, CF4, C2F6, C3F8, NF3, HBr, AsH3, PH3, B2H6, SiF4, and SiH4.

Lab, Mobile, or Process

Trace Gas Analyzers can be set up for single run analysis or batch sampling, or to run continuously for process monitoring. This makes the TGA an ideal option for bench-top applications in the lab or for continuous duty in a process. With the optional sampling system, the instrument can do batch or individual analysis from a fill manifold or trailer fill stanchion, or from a variety of sample points in a process.

MDQs < 1 ppb

Currently our conservative guarantee for MDL with a reasonable RSD is 10 ppb for atmospheric components, day-in and day-out. But some of our clients find that once the analyzer is installed and running continuously in ultra high purity applications, the instruments are able to routinely integrate and quantify at levels of less than 1 ppb.

Stand-alone Operation

VICI TGAs provide a complete stand-alone solution for autonomous chromatographic analysis, from sample prep to final report. Everything is included in the TGA housing, from the computer with all the necessary software and hardware to the touch-enabled wide screen display. A wireless mouse and keyboard are also included. < Show more >

VICI TGAs provide a complete stand-alone solution for autonomous chromatographic analysis, from sample prep to final report. Everything is included in the TGA housing, from the computer with all the necessary software and hardware to the touch-enabled wide screen display. A wireless mouse and keyboard are also included.

TGAs can be specified with an optional Gas Sampling System (GSS), which provides up to 64 streams and four calibration gases and associated methods. When a TGA is configured with the GSS option, the user can enable a batch routine to introduce a selected sample and method, run the analysis with replicates, store the data, integrate the chromatogram, and calculate the results. With the optional Statistical package, results of averaged samples can be easily acquired for use in calibration and system validation checks.

Resultant data can be printed via a network printer or to a local user-provided printer. The same results can be output to an analog signal for DCS and other control schemes, or to the OPC server for database or spreadsheet updates. Functionality for copper-based LAN connection and secured WIFI make the instrument available and data accessible. < Show less >

Fast temperature zones

Optional Fast Temperature Programmer (FTP) technology can be used for up to four temperature zones. Those zones can be columns, preconcentrators, heated transfer lines, traps, valves, or detectors. < Show more >

Optional Fast Temperature Programmer (FTP) technology can be used for up to four temperature zones. Those zones can be columns, preconcentrators, heated transfer lines, traps, valves, or detectors.

Ramping capability varies based upon the mass of the item to which the heat is being applied. For example, a 5 m x .32 mm fused silica capillary column can be ramped and controlled at rates up to 3000°C/min, while a 30 m MXT style column may only ramp at 120°C/min.

Each zone can be run independently or programmed to track another zone. Each independent zone also has accomodation to power a fan or cryo-valve as the means of rapid cooling. < Show less >

Secure Telemetry

While the TGA is a fully functional standalone GC, there are those times when a brief look is all that is required to verify that a batch of samples is running smoothly. Why put on your PPE and walk out into the plant or waltz across the lab to check? Just point your PC browser to the TGA’s secured web service, provide the proper user name and password, and access a fully-configurable interface to the TGA. < Show more >

While the TGA is a fully functional standalone GC, there are those times when a brief look is all that is required to verify that a batch of samples is running smoothly. Why put on your PPE and walk out into the plant or waltz across the lab to check? Just point your PC browser to the TGA’s secured web service, provide the proper user name and password, and access a fully-configurable interface to the TGA.

The system can be configured for various levels of access:

  • View Only – User has access to integration and reports.
  • Select/Start Analysis – User can load a sample and initiate a run, a batch of runs, or a sequence.
  • Calibration Update – User can update or modify calibrations.
  • Method Change – User can manipulate the method, valve timing, flows, integration parameters, and temperature programs.

We can provide remote support through a number of methods which can be tailored to your company's security policies. With appropriate IT approval/assistance, the TGA can be accessed through a secure connection from the internet, allowing a technician to provide needed assistance without a road trip for a service call. A real time and money saver! And remote support after the sale is free for life with a Valco TGA. < Show less >

Modular Design

The design of the TGA allows a very wide range of applications to be run on a single instrument. The standard modules are Detectors, Oven/temperature zones, and Valve controls. < Show more >

The design of the TGA allows a very wide range of applications to be run on a single instrument. The standard modules are Detectors, Oven/temperature zones, and Valve controls.

Detectors
Standard configurations use one or two detectors; however, with the modular approach as many as eight detectors can be used. Depending on the requirements detectors can be run in parallel or in series.

Detectors can be any combination of FID, microTCD, IMS, RGD, or pulsed discharge detectors (PDDs) operating in PDHID, PDPID, or PDECD modes. For example, a PDHID and a microTCD running the same sample provide a useable range from <5 ppb up to >99% concentration.

Oven/temperature zones
The TGA offers support for 12 programmable thermal zones and up to four fast temperature programmed (FTP) zones. FTP zones can be micropacked columns, metal open tubular columns, capillary columns, programmable rate injectors, vaporizers, retention gap, or absorbers/concentrators.

Valve controls

Support is available for up to 16 air actuated and four electrically actuated two position valves, plus four electrically actuated multiposition valves.

The multiposition valves can be configured in our Gas Sampling System option (GSS) to provide a stream selector module, in which each stream can run its own unique method. With this arrangement, batches of samples can be run, or, if these sample points are from process streams, the stream and results can be fed back to the plant control network. < Show less >

Advantages of Modular Design

Redundancy
In addition to the wide dynamic range and low level sensitivity, the TGA can be configured for redundancy so that there is always a hot backup for any two-channel method. < Show more >

Redundancy
In addition to the wide dynamic range and low level sensitivity, the TGA can be configured for redundancy so that there is always a hot backup for any two-channel method.

Multiple methods
With the highly flexible graphical user interface (GUI), a single TGA with two or more detectors can be configured for a wide range of methods on a wide variety of gas types. We routinely provide instruments with the standard two detectors plus two additional detectors added as an option. In this setup, two detectors are configured with methods for five or more bulk gases, while the other two run another method and gas type or remain on standby as “hot backup”.

Higher throughput, high speed ovens
If you need to clear heavy compounds or contamination from an injected sample or require a long ramping method for a series of compounds, we can configure one or more modular fast temperature programmed zones to drastically increase throughput. As an added benefit, the FTP zones improve peak shape and height-to-width ratios, which translates into lower LDL performance

Simplified service
TGA configuration is often highly modular (depending on the analysis), simplying service and replacement if there is ever a need. If the methods and service requirements for your instrument ever change, the modular design also allows a much easier path for upgrades. < Show less >

MORE INFORMATION

CHROMATOGRAMS

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