In conventional GC methods, liquid samples are injected into the GC injection port via a syringe injection, after which the samples are immediately chromatographed through the column. In order to determine the sources of background noise originating from the GC injection port, the Short Path Thermal Desorption System and GC Cryo-Trap were attached to the GC injection port.
• Reduced injection port sticking • Samples available •Versatile 12x32mm wide opening vials • USP Type 1 borosilie glass •2 mL nominal volume • Crimp, snap or screw caps and vials • Non-bonded, bonded, ultra-low bleed and pre-slit septa Advantages
Injection Port Liners Septa by Manufacturer SIS GC Cryo-Traps Ferrules Valves Swagelok® Fittings Pyrolysis Probe Accessories Gas Generators Gas Regulators Gas Purifiers and Filters Syringes SGE MEPS -Micro Extraction by Packed Sorbent Purge and
Nonetheless, whatever types of fittings you use, the best option is to adjust fittings, septa, and O-ring seals to be just tight enough, and no tighter. References 1. Anon. Aijiren 7890 Series GC Site Preparation Checklist, Revision 1.6. Aijiren Technologies, Inc
For a 1 µL injection of hexane at 300 C and 66KPa the formula would be as follows:Shown in Figure 8 are vapor volumes for a 1 µL injection of common GC solvents at typical flow rates and inlet temperatures. These can be compared with liner volumes given in Figure 9 to assess the
Easier to install capillary columns due to the nut protruding farther from the insulated injection port chaer. Same column insertion depth as the original manufacturer''s equipment. Kit includes adaptor fitting, 1/16" capillary nut, gold-plated 1.2 mm ID dual Vespel ring inlet seal, one 0.4 mm ID two-hole ferrule, and one 0.5 mm ID two-hole ferrule.
Aijiren''s gas chromatography (GC) systems coine innovative technology, Instrument Intelligence, and expected reliability to offer the broadest range of GC solutions. Integrated Instrument Intelligence provides labs and operators wth predictive technologies to help avoid common GC problems before it affects chromatographic accuracy.
If you use the correct fittings and seals in the gas chromatography system, and follow some simple steps, there is absolutely no need to over tighten any fitting to achieve a leak free seal. For almost all fittings that use seals in a GC system, whether they are ferrules, septa or o-rings, the tightening process should be the same:Make sure the place where you are applying the fitting is
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Leaks at the injection. Check the column connections. Run a leak check. Poor injection technique. Carefully meter the injected amount. Use a clean, good-quality syringe. Poor split flow or ratio control. Monitor the flow. Replace the in-line filter.
Shortened filament posts and heavier gauge metal reduce sagging. For the Thermo/Finnigan 3000, 3200, 1020, OWA®, 5100 and Incos 50 mass spectrometers. (Does not fit Incos 50B, 500 or XL.) Replaces the original metal filament supplied by Thermo (#30004
Select septa based on the injection port temperature you will use. Generally, septa with lower thermal limits are softer, and thus are easier to seal or to pierce with a needle. However, softer septa are more prone to damage caused by overtightening the septum nut, and this can reduce the life of the septum.
24/9/2019 Vial accessories and other consumables for chromatography GC injection port septa Premium HT-quality Blister packs for cleanliness and easy handling Septum type BTO septa AG3 septa
DRAFT 6/28/1999 4 A6.2.7 Septa. Septa are seals on a GC injection port through which liquid samples can be injected using a syringe. A6.2.8 Liquid Charging Devices. Liquid charging devices, such as graduated microliter syringes, are used to inject liquid
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