English
English 中文
Products
Your Position :
Home » Products

Common use PTFE septum gas chromatography GC injector septum supplier

TRACE™ 1300 Gas Chromatograph-US

Reduce costs while maximizing productivity. Designed from the ground up for a new level of usability,the budget-friendly Aijiren™ TRACE™ 1300 Gas Chromatograph gives you the ability to switch instant-connect injectors and detectors in minutes without tools for unprecedented flexibility. I

Quote Now

Troubleshooting GC Syringe Issues-Part 2

Most syringe manufacturers recommend that you do not use a plunger from one syringe in another (unless using Gas-Tight syringes where plungers are usually interchangeable). There is a leak between the needle and barrel. If using a removable needle syringe,make sure the PTFE seal between the needle and barrel is installed properly and not worn out.

Quote Now

Injection Septum at Aijiren

…PTFE septum injector. Allows direct,on-column injection to the center of the filter disc at top of column without stopping the solvent flow through the 1/4"-28 side thread (with or without helicoil). Locknut design provides leaktight seal without o-rings. You can order the 5/16"-28 septum…

Quote Now

How to Condition a New Capillary GC Column

To begin,cool all heated zones in your GC and remove the old column. Don''t discard it just yet—you might need it to troubleshoot the system if you encounter problems after installing the new column. Seal the ends of the old column with capillary column end caps,or with pieces of a used injection port septum,and then put the old column aside.

Quote Now

Merlin Microseal User Manual-Restek

conventional silicone rubber septa used in gas chromatography (GC). Its unique design gives it high pressure capability and resistance to wear which results in long life and excellent chromatographic performance. The Microseal is available for all major GC manufacturers’instruments. How the Microseal Works AGC injection port septum performs

Quote Now

screw top EPA storage vials with caps and septum China

China Gc Vials Screw and Crimp Type with Closures and Septum for Gas Chromatography Uses,Find details about China Gc Vials,Headspace Vials from Gc Vials Screw and Crimp Type with Closures and Septum for Gas Chromatography Uses-Mastelf Jiangyin Allpro Polymer Technology Co.,Ltd is one of the biggest manufacturers of HPLC/GC Autosampler

Quote Now

An GC septa manufacturer Guide to SPME Analysis

headspace (HS) gas chromatography/mass spectrometry (GC/MS) analysis. 18 mm) PTFE/silicone septa (top white,bottom blue) on GC septa manufacturer Aijiren screw top headspace sampling vials (p/n 5188-6537; 20 mL) Septum in injection port is too thick or too tight • Loosen the nut slightly to allow for improved injection Septum coring • Use a septum

Quote Now

Common use glass gas chromatography vials supplier GC septa manufacturer

Autosampler Vial,Hplc Vial,PTFE Silicone Septa with Cap . Shaoxing Aijiren Technologies Co.,Ltd is one of the leading China autosampler vial racks manufacturers and suppliers,welcome to wholesale cheap 2ml vial,20ml vials,12x32 vial,glass vials,hplc vial,sterile vials,9mm ptfe septum…

Quote Now

TRACE™ 1300 Gas Chromatograph-US

Reduce costs while maximizing productivity. Designed from the ground up for a new level of usability,the budget-friendly Aijiren™ TRACE™ 1300 Gas Chromatograph gives you the ability to switch instant-connect injectors and detectors in minutes without tools for unprecedented flexibility. I

Quote Now

Syringes/GC Accessories/Supplies & Accessories

An adjustable plunger on the O-ring ensures that the syringe is gas-tight over a long period of time. The central port is supplied with a luer lock fitting; the secondary port is supplied with a septum nut. This enables access to the gas sample for adding standards or removing a subsample. The plunger stem is detachable,making sample storage easy.

Quote Now

Septum Bleed during GC–MS AnalysisUtility of Septa of

Jul 10,2012· Introduction. In past gas chromatographic (GC) analyses,it has been reported that septa of various makes release volatile organic compounds (VOCs) when subjected to high temperatures ().These reports also revealed the frequent presence of contaminants such as finger oils from handling,or organic contaminants picked up during storage of these septa.

Quote Now

Molded Thermogreen® LB-2 Septa,with injection hole diam

The versions are designed as followsThe version with an injection hole is designed for customers who use autosamplers. This version is also suited for users of solid phase microextraction (SPME).o A dimpled center guides the needle through the septa.o Allows needle penetration through the same loion,time after time.o Reduces septum coring,preventing septum fragments from entering the

Quote Now

Gas chromatographic analysis of methanol and ethanol in

Mar 20,2014· Direct aqueous injection (DAI) and solid-phase microextraction (SPME) coupled with gas chromatography (GC) have previously been used for methanol and ethanol analysis in petroleum-contaminated water or body fluids (Lee et al.,1999,Potter,1996),but their appliions to pore GC septum online have not yet been evaluated. Furthermore,we constructed a

Quote Now

Preventing GC Septum Problems/Chromatography Information

To avoid GC septum bleed,either condition your septum prior to running your analyses,or use a preconditioned septum that is ready for immediate use. Allowing the septum to condition at operating temperatures for a few hours is an excellent way to assure optimum performance. Septum Coring. Most modern gas chromatographs have a septum purge

Quote Now

Qualifiion of gc equipment-SlideShare

Dec 23,2017· Qualifiion of gc equipment 1. PRESENTATION ON QUALIFIION OF GAS CHROMATOGRAPHY PRESENTED BY HUZAIFA NAAZ M. pharmacy 1stYear Under The Guidance Of Dr. SANDIP SEN Department Of Pharmaceutical Analysis SRIKRUPA INSTITUTE OF PHARMACEUTICAL SCIENCES {Approved by AICTE,PCI } {Affiliated to OSMANIA University}

Quote Now

Qualifiion of gc equipment-SlideShare

Dec 23,2017· Qualifiion of gc equipment 1. PRESENTATION ON QUALIFIION OF GAS CHROMATOGRAPHY PRESENTED BY HUZAIFA NAAZ M. pharmacy 1stYear Under The Guidance Of Dr. SANDIP SEN Department Of Pharmaceutical Analysis SRIKRUPA INSTITUTE OF PHARMACEUTICAL SCIENCES {Approved by AICTE,PCI } {Affiliated to OSMANIA University}

Quote Now

Gc Septum at Aijiren

…manual-injection GC and GC/MS. 3 mm thick. CenterGuide™ design requires less force for initial penetration,for a smoother feel. Septum life may be enhanced in some appliions by minimizing tearing and coring. Long Life GC Autosampler Septa are designed for use with GC Autosamplers. The…

Quote Now

Are your ghost peaks coming from the GC column,or

Then,increase the injection port and oven temperatures. If you notice ghost peaks,then suspect the carrier gas. (Example of a carrier gas filter trap shown below.) A final comment on carrier gas,make-up gas,fuel gas,or any other gas supply related to a GC,it is possible that any upstream valve may be to blame for ghost peaks.

Quote Now

Gas Chromatography-Chemistry LibreTexts

Aug 15,2020· The carrier gas plays an important role,and varies in the GC used. Carrier gas must be dry,free of oxygen and chemically inert mobile-phase employed in gas chromatography. Helium is most commonly used because it is safer than,but comprable to hydrogen in efficiency,has a larger range of flow rates and is compatible with many detectors.

Quote Now

Injection Septum at Aijiren

…PTFE septum injector. Allows direct,on-column injection to the center of the filter disc at top of column without stopping the solvent flow through the 1/4"-28 side thread (with or without helicoil). Locknut design provides leaktight seal without o-rings. You can order the 5/16"-28 septum…

Quote Now

Gas Chromatography Definition,Principles,Procedure And

Nov 17,2017· Introduction to gas chromatography Gas chromatography is a chromatography technique that can separate and analyze volatile compounds in gas phase. Depending on stationary phase used in this analytical technique,there are two types of gas chromatographyGas-liquid chromatography (GLC) Gas-solid chromatography (GSC). Among these,GLC is most widely used

Quote Now

Evaluation of lifetime and analytical performance of gas

May 25,2012· 1. Introduction. Many users of gas chromatography (GC) have opinions on what type of septa material is best suited to their specific analyses. In many cases great care goes into the deactivation of the injection port liners,column deactivation,and various sealing materials in the common inlets but,septa are often chosen by the practitioner based on perceived cost and

Quote Now

Ptfe Septum at Aijiren

PTFE-faced butyl septum was used in sealing headspace vials to analyse the sampling efficiency and breakthrough of methyl bromide on activated charcoal using GC. It was also used for sealing water samples during headspace analysis with GC-FID,in a study which demonstrates cross-validation of…

Quote Now

Septa/GC Accessories/Supplies & Accessories

Eliminates septum coring and cruling. Reliable performance during extended runs. O-ring detail seals needle during injection. Duckbill seals more tightly at higher pressures. Low insertion force for easy manual injections. Reduced septum bleed and ghost peaks. NoteMerlin Microseal septa require the appropriate adaptor kit or nut for your GC.

Quote Now

Same Old Thing!-ChromaBLOGraphyRestek''s Chromatography

Dec 10,2013· Using a Merlin MicroSeal Septum to Reduce Endrin and DDT Breakdown for EPA Method 8081b-Organochlorine Pesticides by Gas Chromatography. 6.) Unraveling the Mysteries of Ghost PeaksIt’s Time to Pull the Sheet Off. Other linksReduce impact of septum “sweat” by using septum

Quote Now

Is it column bleed,septum bleed,or a fragment from a

On the other hand septum bleed is due to inappropriate choice in septa,temperature issues (temperature set too high) in the injector or overuse of a particular septum. GC septa manufacturer and other major manufacturers recommend that the septa be replaced after 35-50 manual injections of 75-100 autosampler injections.

Quote Now
Copyright ©2020 Zhejiang Aijiren Technology, Inc. All Rights Reserved