SRI have effective solutions BUT there are other options Gas Analysis is an “ART” in itself . . . Enquire for alternatives !)
Various Systems : SRI have evolved these over many years. . . many INNOVATIVE and Unique designs ALL at a Cost performance compromise ! No Single Column will analyze ALL permanent gases and HCs (normally limited to C6 max) unless you want to invest in a High-Speed Calidus Capillary GC System and then up to C9 ( C12maybe? ) at megabucks
LDetek offer amazing dedicated range of HighPurity Gas Analysis Systems including a more Universal PlasmaEmission Detector and also including a New MultiDetek#2 GC - multiple columns (10max) and auxiliary ovens/heating zones Unique designs - process control type complex configurations
some HINTS . . . H2 analysis is still a big problem on TCDs Use Argon as Carrier Gas > High sensitivity but useless for ALL other analytes re sensitivity - Helium creates anomolous behavior 1-10% and on ANY GC Brand; cross over response > negative peaks > poor response Dual/Parallel Column CTD1 can be problematic for complex sample (inc HCs > C6) re spurious peaks etc
really an over simplistic cost (GC options) compromise
consideration required for backflushing hence refinements of the MG#5
Heated GSV Oven is recommended if samples contain water ( to avoid condensation etc )
for ppM CO and CO2 you need the Methaniser-FID Option
an OxyTrap on the carrier gas is essential if HayeSep column is to be used at colume temp >150degC otherwise expect spurios carryove bleed peaks DON’t rely entirely on BOC HighGrade Heliun IT CAN NOT BE GUARANTEED
S-Cpds require Silcosteel(MXT) columns and silco sample loops and connecting plumbing - of course at least a FPD S-selective detector is required
ALL MG systems require CARE in interpreation of Result due to some peak duplication YOU need quite some technical capability and understanding of such system OTHERWISE YOU CAN EASILY GET INTO A MESS - and NOT for the “faint-hearted” !
SRI Innovation - CTR-1 Replacement Column for Fixed Gas Analysis PDF
SRI Innovation _ MuliGas Analysers are are dedicated application Invariable other lab users want to do a simpler job eg run liquid samples Under inspiration SRI developed a modified MG#3 with an On-column Injection Port - for use with HayeSep D Column for such purposes AS A SEPARATE Tas K( reqiirng a Timed Event table modificatino compared to the gas analysis App)
WARNIBG POTENTIAL CUSTOMERS are advised to pre-plan for ALL contingencies IN ADVANCE
Gas standards ARE generally REQUIRED - can be lengthy lead times for ordering -
upgrades ( At least in AUSTRALIA are viritually impossible) - needs expensive freight return for SRI-USA factory ANY Upgrade
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