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.
Features:
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Stand-alone Operation + Highly Accessible Data:
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.
Resultant data can be printed via a network printer or to a local user-provided printer. The base instrument provides results displayed on the front panel, transmitted through the RS-232 serial port, and published through the OPC server. Optional outputs include 4-20 mA analog trending, as well as Modbus and Profibus communication protocols.
With the optional Statistical package, results of averaged samples can be easily acquired for use in calibration and system validation checks. Functionality for copper-based LAN or optional WIFI connection make the instrument available and data accessible. - Turnkey Analyzer:
Configurations for most bulk, specialty, and electronics gases are available. Standard configurations include He, H2, N2, Ar, O2, BF3, CO, CO2, CH4, C2H4, C3H6, CF4, C2F6, C3F8, NF3, HBr, AsH3, PH3, B2H6, SiF4, and SiH4.
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Lab, Process, or Mobile:
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 options for sampling by valve, syringe port, or 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.
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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.
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. - 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. For multiple method applications, this very low LDL can be coupled with range extension up to 100%. - 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. - 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.
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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.
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Valve controls
Support is available for up to 16 air actuated and four electrically actuated two position valves, plus four electrically actuated multiposition valves.
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.
The Automatic Calibration option is a configuration that allow user- configurable system suitability checks to be run within a batch of samples or at particular times of day.