• Compound concentrations increasing???

    We analyzed effluent samples via our GCMS system paired with an ATOMX purge and trap. All of a sudden, we have noticed a big increase in certain compounds concentrations and can't explain why. Typically, we make thre...
    jenileehaddon
    last modified by jenileehaddon
  • Varian

    Hi community,  what is the Agilent part number  - ferrule 28-694570-00 and 89-999570-00 from Varian? I need Agilent part number Aluminum Crunch Washer 15-003347-00 from Varian! For Varian СP-3800. ...
    a.fedulova
    last modified by a.fedulova
  • I am looking for a contact within R&D who assesses emerging technology in micro instrumentation (GC primarily) for trace analysis in water.

    I am conducting an independent assessment of some early stage technology for micro GC analysis, in lab or in the field.  I am looking for a contact who could provide insight into the feasibility of this technolog...
    johnhallman
    last modified by johnhallman
  • MT400-2 Moisture trap

    Hi community, please help me, I can use ferrule part number 5180-4109 with this trap MT400-2 or not. Please, recommend me ferrule for the Moisture trap.
    a.fedulova
    last modified by a.fedulova
  • Fuse, 10 A

    Hi community! Which fuse, 10 Amp use for Agilent 6890N, 5973, 7820?   Thanks!
    a.fedulova
    last modified by a.fedulova
  • G3435-60010 FPD signal board, used with series 7820 and 7890 gas chromatography systems

    Hi community! Help me please, I need part G3435-60010 for Agilent 7890A, this FPD signal board obsolete, no replacement recommendation. Whith new part  FPD signal board for Agilent 7890A or Agilent not product t...
    a.fedulova
    last modified by a.fedulova
  • Am I using the correct detector configuration for my 6890 GC?

    8/7/19   Hello, I have had a fair amount of success with posted questions in this forum, so here is another one. I am interested in knowing more about whether the flame ionization detector I have equipped on my...
    megaflorch
    last modified by megaflorch
  • who to used a system of atomx / GC-MS for quantification of volatile in water based samples

    im student of postgraduate degree in the Chihuahua University and buy a new equipment the atomx teledyne tekmar and doesn't have a scheme or protocol for working with water based samples, we used the GC-MS whit the te...
    ssaullvd
    last modified by ssaullvd
  • Pressure problems during a pulsed split run.

    I have a 7890 with a 5975 MSD and an AtomxXYZ purge and trap (Tekmar) interfaced to the front injection port. I have run dozens of samples using a pulsed split method. The split is 1:1 and the pulse is 50 psi for 10 m...
    stevenwlloyd
    last modified by stevenwlloyd
  • Septum purge negative flow

    I am operating a 7890/5975 with a Tekmar Atomx XYZ interfaced to the front inlet. The septum purge actual flow reads -11 ml/m when the setpoint is off and about -1 psi when the setpoint is 3.0 ml/m. The inlet has a Me...
    stevenwlloyd
    last modified by stevenwlloyd
  • Water contamination

    We have 3 GCMS set ups with the color changing oxygen/water filters.  In the 2 newer set ups the water becomes saturated while the oxygen does not.  Any ideas for the source of the water?
    pwebb
    last modified by pwebb
  • compounds in end of injection, shifts and making a large diform peak together

    Hi, We've been experiencing problems since a little while with our P&T GC/MS for VOC analysis.   We calib with 2 stds, one at conc.2 and the other at conc.20. The one at conc 20, is as usual.  But...
    carolabo
    last modified by carolabo
  • Live Webinar April 24:  Turning Up the Heat on WAX Columns Without Getting Burned

    100 % polyethylene glycol columns, also known as WAX columns, are used for a wide variety of applications, such as industrial chemicals, flavours and fragrances. In comparison to polysiloxane stationary phases, the ma...
    fmavandadi
    last modified by fmavandadi
  • Purge and trap system search

    We are searching for a purge and trap system for a 7890/5975. there seems to be 4 available: Tekmar, OI, EST and Schimadzu. Does anyone have experience (positive or negative) with any of these systems?
    stevenwlloyd
    last modified by stevenwlloyd
  • Preserving peak performance of your GC-MS - Webinar On-demand link

    Preventative maintenance is something most chromatographers know is important, especially when it comes to a Gas Chromatography Mass Spectrometry systems. Changing the oil and cleaning the ion source are just two very...
    fmavandadi
    last modified by fmavandadi
  • Strategies for Optimizing your GC System - WEBINAR Dec 13th

    Presenter: Vanessa Abercrombie (Agilent Technologies, USA) Dates: 13 and 14 December, 2016   This event will broadcast live at three different times: Broadcast #1: Tuesday, 13 December, 7 am PST (California) /...
    fmavandadi
    last modified by fmavandadi