20661
Thermogreen® LB-1 Septa, solid discs
diam. 12.5 mm ( 1/2 in.)
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About This Item
UNSPSC Code:
41115717
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packaging
pkg of 50 ea
manufacturer/tradename
Supelco
diam.
12.5 mm ( 1/2 in.)
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General description
Septum is a very important component of syringe injection system. They are usually fabricated from elastomeric, self-sealing materials such as silicone rubber, neoprene or fluoroelastomers. It is suitable to conveniently introducing the sample without causing the system to leak. Improper septa decomposes under the high-temperature conditions of capillary inlets causing baseline disruption and ghost peaks in a chromatogram.
For use with 50 °C to 300 °C inlet temperatures.
Application
Thermogreen® LB-2 Septa is suitable for the following applications:
- To minimize extraction onto or loss of analytes off the solid phase microextraction (SPME) fiber from the vial during analysis by GC-MS.
- Thermo-resistant septa is used in GC instrument to avoid carrier gas leaks, extraneous peaks and phthalate contamination.
- Thermo-resistant septa along with thick needle protector is used in GC instruments to avoid damage irreversibly caused by microsyringe.
- It is also used in the influent sampling ports in gas chromatographs.
Legal Information
Thermogreen is a registered trademark of Merck KGaA, Darmstadt, Germany
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Solid-phase microextraction (SPME) for rapid field sampling and analysis by gas chromatography-mass spectrometry (GC-MS).
Hook, Gary L., et al.
TrAC, Trends in Analytical Chemistry, 21, 534-543 (2002)
Elefteria Psillakis et al.
Journal of chromatography. A, 999(1-2), 145-153 (2003-07-30)
A simple and efficient liquid-phase microextraction (LPME) technique using a hollow-fibre membrane, in conjunction with gas chromatography-mass spectrometry has been developed for the extraction and analysis of six phthalate esters in water samples. Parameters such as extraction solvent, agitation of
R.L. Grob, M.A. Kaiser
Environmental Problem Solving Using Gas and Liquid Chromatography, 166-166 (2000)
Robert L. Grob, PhD, Eugene F. Barry, PhD
Modern Practice of Gas Chromatography, 471-472 (2004)
Effect of periods of non-use on biofilter performance.
Martin, F. Jason, and Raymond C. Loehr.
Journal of the Air & Waste Management Association (1995), 46, 539-546 (1996)
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