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包装
pkg of 50 ea
直径
9.5 mm ( 3/8 in.)
相容性
for use with Agilent/HP 5700 Series, 5830, 5840
for use with Finnigan 9600
for use with GOW-MAC® all
for use with HNU portable GC
for use with Tracor 550, 560
for use with Varian packed column injectors
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此商品 | 50208U | 50197U | 50193U |
|---|---|---|---|
| matrix octadecyl | matrix octadecyl | matrix sulphonic acid | matrix tetramethyl ammonium |
| separation technique reversed phase | separation technique reversed phase | separation technique cation exchange | separation technique anion exchange |
| matrix active group C18 (octadecyl) phase | matrix active group C18 (octadecyl) phase | matrix active group sulfonic acid phase | matrix active group ammonium ion, quaternary phase |
| technique(s) HPLC: suitable | technique(s) HPLC: suitable | technique(s) HPLC: suitable | technique(s) HPLC: suitable |
| pore size 85 Å | pore size 85 Å | pore size 85 Å | pore size 85 Å |
一般描述
它是经典Thermogreen LB-1隔垫的改良版。
- 可以在较宽的入口温度范围内（100°C至350°C）保持极低流失
- 经过预处理，开封即用
- 易于进针，并具有较高的穿刺耐受次数（适用于自动进样）
- Supelco独有的橡胶材料配方
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.[1] 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.[2]
应用
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.[3]
- Thermo-resistant septa is used in GC instrument to avoid carrier gas leaks, extraneous peaks and phthalate contamination.[4]
- Thermo-resistant septa along with thick needle protector is used in GC instruments to avoid damage irreversibly caused by microsyringe.[5]
- It is also used in the influent sampling ports in gas chromatographs.[6]
其他说明
对于之前采用 9mm 尺寸者,现在我们推荐 9.5mm(3/8 英寸)的隔垫。
法律信息
GOW-MAC is a registered trademark of GOW-MAC Instrument Co.
Thermogreen is a registered trademark of Merck KGaA, Darmstadt, Germany
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
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
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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