Thermolite Plus septa are a proven low-bleed champion. With a maximum temperature of 350 °C, Thermolite Plus septa are suitable for most applications. BTO septa are bleed and temperature optimized with a maximum temperature of 400 °C, for the most demanding GC and GC-MS applications.
These agents are used to neutralize compounds to make them acceptable to the GC analysis and phase. However, if excess silylation agent gets onto the phase, it might react with the phase or even break it down. These excess reagents will damage the column permanently. Running carrier gases that contain oxygen, or moisture above 1 ppm
Chromatography Septa Components on top of the injection port of GC systems that provide a leak-free seal between the atmosphere and carrier gas and minimize the introduction of contaminants; allow repeated sample injection without significant coring or leaking. 1 – 30 of 43 results 1 Aijiren Tech™ Septa A wide range to cover most applications
the inlet EPC module, allow the GC to sit with the oven at the method starting temperature or cooler for an extended period of time (1/2 to 1 hour). If the peaks get significantly bigger on the next run, you will know that they are coming into the GC injection port and building up on the front of the column while the GC oven is cool.
Septa Choosing the right septum for your inlet is even easier. Restek offers several options that are designed to avoid septum bleed and coring, which can damage your column and your data: For temperatures up to 350 °C*: Thermolite Plus Septa. For temperatures up to 400 °C*: Premium Non-Stick BTO Septa.
Sep 1, 2005 · There are several precautions that can be taken to reduce the impact of septum degradation/bleed: Avoid the septum and use valve injection. This is not always possible but will prevent the septum problem. A valve and sample loop can be mounted before the splitter, and the coupling with the septum cap or through it can be made of clean materials.
Different septa material for LC and GC applications There are many different types of materials used to produce the septa found in LC and GC vial caps. This document will provide you with the technical guidance you need in order to make the right selection. Choosing the right septa When selecting which septa is right for your experiments, it
The bleed from either septum shows a similar pattern (Figure 1), but it is easy to determine the source with a simple test. Isolate the inlet by setting the instrument to perform a run without an injection. Perform an analysis; if the bleed disappears, then the vial cap septum was the source. Determining if the vial cap septum is the source of
Aijiren Technologies septa are the only GC injec-tion port septa that are plasma treated prior to being packaged in an individually sealed blister pack in a clean room environment. The blister pack, while certainly being a convenient size for easy storage, most importantly ensures that the septa stay clean until they are ready to be installed
of the septa to the GC inlet • Pre-conditioned septa, ready to use • The CenterGuide design facilitates needle penetration to the same point . with every injection, for easy and rugged operation • Pre-pierced BTO septa provide long autosampler injection life • Stay clean surface does not attract dust • Compatible with all GC instruments
GC Septa The GC septum should be routinely replaced to reduce the risk of leaks and septum particle contamination. In fact, if the instrument is in heavy use, change the septum daily. Repeated use of the same septum will result in increased coring, which may introduce a leak and/or result in septum fragments being deposited in the inlet liner.
Septa. Ensure optimal performance of your GC instrument with bleed and temperature optimized Aijiren Tech™ BTO and TR-Green Septa. Made of low-bleed silicone, these septa have excellent mechanical properties, are ideal for demanding GC-MS applications, and may be used reliably up to 400 °C. 48 (Blister Pk.) 50 (Blister Pk.) 48 (Blister Pk.)
PTFE / Silicone septa (T/S) are the most useful for HPLC applications as they have wide chemical compatibility and low extractables (I recommend them for general purpose use) . These area
Polyethylene (PE) Septa: Polyethylene septa are offered as single piece caps where the septum is molded as a part of the cap. The surface for needle penetration is 0.01” thick allowing for use with thin gauge needles. Polyethylene septa are not resealable and intended for single injection use. Polypropylene (PP) Septa:
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