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Merck
CN

20658

Thermogreen® LB-1 Septa, solid discs

diam. 11 mm ( 7/16 in.)

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About This Item

UNSPSC Code:
41115717
NACRES:
SB.54
Packaging:
pkg of 50 pkg
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packaging

pkg of 50 pkg

manufacturer/tradename

Supelco

diam.

11 mm ( 7/16 in.)

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 introduce 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 instruments 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.
Chemosphere, 54(7), 849-857 (2003-11-26)
The sonochemical degradation of aqueous solutions containing low concentrations of six phthalate esters at an ultrasonic frequency of 80 kHz has been investigated. Ultrasonic treatment was found capable of removing the four higher molecular mass phthalates (di-n-butyl phthalate, butylbenzyl phthalate
Robert L. Grob, PhD, Eugene F. Barry, PhD
Modern Practice of Gas Chromatography, 471-472 (2004)



Global Trade Item Number

SKUGTIN
2065804061833657034