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Please select a topic from this section below:
5890 GC
6890 / 6850 GC
7890 GC
General GC Hardware
Head Space Sampler
Low Thermal Mass (LTM)
Click a question below to see the answer:
GC Flow Modulator
What are the Exhaust venting requirements for the GC?
Why does my FID have spikes on the baseline?
Why am I getting a wavy (or a wandering)baseline in my FID Chromatogram?
What can cause ghost peaks or carryover in my GC chromatogram?
How do you chemically deactivate injection liners? How do I know when I have an activity problem in my inlet?
What are the auxiliary sampling devices available ?
What are uses of GC sampling valves?
What are Pyrolyzers?
What are the different type of pyrolyzers available?
How does the Resistively heated pyrolyzers function?
How does the Microfurnace pyrolyzers function?
How does the Curie-point pyrolyzers function?
What are the replaceable parts & part numbers in 3000 Micro GC?
How do I change or restore the IP address of my 3000 Micro GC?
My 6890 GC displays Fault 200 -201 Pneumatics Shutdown? What could be the problem?
My 6890 GC displays Fault 212 or 213, electrometer out of specification. What could be the problem?
My 6890 displays Fault 216 - 219, TCD filament open/TCD filament shorted. What could be the problem?
My 6890 GC displays Fault 203 -211, Signal processing error. What could be the problem?
My 6890 GC displays 220-236, Heater Over Current-Oven- Front/Back Inlet- Front/Back Det- Aux 1/2 Thermal Shutdown. What could be the problem?
What is the most appropriate coolant for my cryogenic application?
How to load default setpoints through my GC keyboard?
Can you provide us tips and consideration on method development?
How should I set my Injection Port Temperatures appropriately for GC Analyses?
How is the vapor volume of liquid samples calculated?
What are the common valve configurations for my 5890 and 6890 GC's?
How do I troubleshoot problems with my Agilent 3000 Micro GC?
Why there is a sudden loss of sensitivity in my FID?
How to troubleshoot peak shape problems?
What are the recommendations for the gases used in GC?
What are the general points to be considered while using cryogenic operation?
How to troubleshoot the Noise/High background in my FID?
Can you provide information on Agilent GC Column Phase selection?
How to choose right column for my GC analysis?
How to troubleshoot communication problems with my HPIB system?
How to import the data files from HP3365 integrator to ChemStation software?
How to import the method files from HP3365 integrator to ChemStation software?
What is the part number for the complete Agilent 5973 MSD inert source?
How to recover the GC column catalog inventory while relaoding the ChemStation software?
How to leak test the valves in my GC?
What is backflush in the injection port and what is its impact on GC analysis?
What are the Replacement parts for 6850 GC Thermal conductivity detector
How to install capillary column in FID?
Where can I find instructions on how to install a capillary column into a NPD?
How do I install capillary column into a Thermal Conductivity Detector?
What is the best way to condition a capillary column?
How do I install a capillary column in Electron Capture Detector and a Micro Electron Capture Detector?
How do I install a capillary column into a Flame Photometric Detector?
How do I install a capillary column into a Volatile interface (VI)?
What procedure should be followed to shut down the GC?
How to replace filter in 3000 micro GC?
What is the procedure for performing Maintenance on the 6890/6850 Gas Chromatograph Split/Splitless Inlet?
Do you have a tool to fix the ferrule to capillary column properly before fixing the column to split/splitless inlet?
Can I use the CTC PAL Autosampler with my 6890 GC?
Is the CTC PAL Autosampler controllable by my GC Chemstation?
What are the minimum firmware requirements to upgrade my 6890 GC with a CTC PAL Autosampler?
How do I connect non-Agilent made detectors to my Agilent GC ChemStation?
How important are the specifications of Agilent’s Certified Vials?
How can we improve our 6890 GC’s detection limit with better consumables?
Which Gas Chromatographs support Retention Time Locking?
What is the maximum injection volume of Combi PAL?
Can you provide specifications for Agilent Sulfur Chemiluminescence Detector and Nitrogen Chemiluminescence Detector?
What are the major differences between the basic and advanced versions of the Agilent Lab Monitor and Diagnostic Software?
How can the Agilent Lab Monitor Diagnostic software help me maintain my 6890 / 7890 Gas Chromatograph?
What is the 'Dual Plasma Technology' and its advantages for Agilent Sulfur and Nitrogen Chemiluminescence Detectors?
How does the Agilent Sulfur Chemiluminescence Detector (355 SCD) function?
What is the theory behind Agilent's Nitrogen Chemiluminescence Detector (255 NCD) function?
What are the specifications of Agilent Sulfur Chemiluminescence Detector?
What are the specifications of Agilent Nitrogen Chemiluminescence Detector?
What needs to be done to take care of DST changes on upgraded installations to ChemStation B.02.01 and higher?
What needs to be done to take care of DST changes on ChemStation B.01.0x, with or without ChemStore B.03.02?
What are the site preparation specifications for Agilent 7890A GC?
Agilent Lab Resource Management (LRM) Benefits
Agilent Intelligent Services Overview - Gas Chromatography
Agilent Intelligent Repair Overview - Gas Chromatography
Agilent Intelligent Connections Overview - Gas Chromatography
Agilent Intelligent Connections Plus Overview - Gas Chromatography
Who determines the access level to our systems while using the Agilent Intelligent Services?
Security of Agilent Intelligent Services - Gas Chromatography
Can I run my 6890GC in Splitless mode with a Headspace unit attached?
How does Agilent Technologies compare the performance of its columns relative to competitors, and what type of tests are carried out?
How can I increase the sample throughput and analysis speed using megabore columns?
What is the significance of N, the number of theoretical plates for a given column, and why is it important?
What are the Quality Control Specifications that are available for GC Capillary Columns?
Do I need to buy a separate autosampler for standard injection, headspace and SPME?
Does Combi PAL has SPME Capability?
How can I change 7673/7683 auto injector tower from front inlet to back inlet and vice versa?
With 7683 Autoinjector on 6890 GC, I have started the run / sequence from ChemStation but operation halts showing ‘Waiting for injection’. What could be the problem?
My autoinjector unit halts with four red flashes indicating a 'plunger error'. What could be the problem?
Can I attach an autoinjector from one GC to another GC ?
How do I configure the GC Chemstation software for a manual injection with the 6890 GC?
My GC autoinjector performs an injection but the GC Run does not start. What could be the problem?
When I tried to make an injection with the ALS, the injector halted with two red flashes on the tower displaying 'Front (Or Back) Syringe Error'. What could be causing this?
My tray doesn't work and I get an error 'Z-axis home failure'. What causes this problem?
What is meant by the term 'multi-port valve' used in GC?
What is a Liquid Sampling Valve and how is it used?
Where are the valves mounted on the GC?
How to inject liquid samples that contain a range of high and low boilers, from C1 through C12, for example?
Can I buy a stream-selection valve from Agilent?
What is the use of valves in GC?
Can a switching valve be set up to behave like a stream selection valve?
How many heated zones are needed to heat two valves?
Why is the 6890 GC the best GC to use with a multiposition valve?
What is a multiposition valve and what is its use?
What are the available types of the sample loops for Gas Sampling valves?
What parts/adapters do I need to connect capillary column to valves?
What are the part numbers of available sample loops for a Liquid Sampling Valve?
I'm using the Deans switch with PLOT columns. What should I do to ensure I'm getting the best possible performance?
Why do I need to determine the effective internal diameter (ID) of the PLOT column when using the Deans Switch?
What is the fastest way to determine the effective column ID when using the Dean's switch application?
What is Thermal Desorption?
How does Thermal Desorption Work?
What models of CTC PAL autosamplers are supported by EZChrom Elite and OpenLAB for GC?
What functionality of CTC PAL is supported in EZChrom Elite and OpenLAB?
Are there any inlets or detectors that are not compatible with the CTC PAL products?
What features are available with CTC integrated control for GC, GC/MS ChemStation and EZChrom?
What type of septa is recommended with SPME injections?
Can we use Agilent screw caps & septa for CombiPAL Headspace?
Whether PTV inlet is available with 6850 GC?
Can I have the cryo option with my 6850 Gas Chromatograph?
What are all the Gas phase instruments supported by Agilent openlab system
The TDS injection stopped with error 'TDS Lid Open!'. How do I restore the TDS sequence?
What are the recommended tube conditioning temperatures and times?
Why doesn't the Cooled Injection System (CIS4) temperature cool down?
The TDS doesn't inject, even though the Cooled Injection system (CIS4 ) and Thermal Desorbtion System (TDS2) temperatures are at their set values. Why?
I have set both the Thermal Desorbtion system ( TDS) and Cooled Injection System (CIS ) to split mode. Where do I set the split ratio?
Can I set different split ratios for the Thermal Desorbtion system ( TDS) and Cooled Injection System ( CIS ) ?
My system is leak free. Why is nitrogen released when tuning is performed?
A front inlet (CIS- Cooled Injection System) pressure shutdown occurred. The pressure does not increase
The GC does not go to 'Ready' or begin the analysis unless I push 'Prep Run'. How can I set the instrument to begin automatically?.
What is Agilent’s Flip Top Inlet Sealing System? What are it's feature & benefits?
Which O-ring is recommended for Flip Top inlet?
Where can I find the instructions to install Agilent FlipTop Inlet Sealing System?
What is an Agilent Ultimate Union? How to install it?
What is the effect of Column Temperature on Separation of herbicides?
We are intermittently facing difficulty removing sticking septum from GC inlet. Also there is an increase in background noise. How should we troubleshoot this problem?
How do I select the proper flow meter for my GC?
I have a 6890 with a sample loop, a six port valve and a TCD, I am experiencing an increased baseline, decreased areas and a slight retention time increase. What is the best way to trouble shoot these types of problems?
Do I have to align 7683B auto injector after replacing 1vial turret with the 8vial high density turret?
We just purchased the G2910A 7683 ALS injector Bundle for a 5890 Series II. What is the part number for a new 7683 tray? Will the older model 7673 trays work with the new controller?
Is it possible to control Agilent Head space Sampler with EZChrome Control Software?
What are the specifications of the G1888A Headspace sampler?
What are Gas-Phase Microfluidics Products and what are its applications?
What are the specifications of the 7694E Headspace sampler?
Why do we have Glass wool in Injector Liners?
How do I split the injected sample from single injector to two different columns connected to two detectors?
Can the G2922AA/G2924AA software control a mix of 7694B and G1888A headspace samplers on one ChemStation?
Do we need auxiliary EPC module along with an EPC inlet to operate the G1888A in an EPC control mode of GC 6890 or 6850 ?
What do you mean by 'Steam Cleaning the Pneumatic System' in Head Space Sampler?
Why I am seeing peaks in the blank samples that I inject on my GC Headspace?
What is the process for having my ECD cell refurbished or repaired?
What are Low Bleed Stationary Phases for Gas Chromatography columns and why is it useful?
What is the proper cleaning procedure for FID jets?
When & why should I clean or replace FID Jet?
What causes corrosion in my FID collector and igniter glow plug? How to avoid this?
What type of liner should be used with Headspace Sampler & P&T samplers & why?
How many valves can be used with my 6850 GC?
Is it possible to use valves with my 6850 GC?
What is the reference term 26s/42/HP used in Agilent Syringe Listing?
What types of Gas Chromatography syringes are available? Can you provide their brief details?
How do I choose between On-Column and Splitless GC Injection?
I am connecting my headspace sampler to my GC. How do I indentify which line needs to be cut on the split/splitless insert assembly to connect the transfer line?
Why doesn't my PC and Micro GC communicate and remain offline?
What would cause peak retention time drift on my Micro GC?
Why does the TCD filament is become faulty in my Micro GC?
Why does my chromatogram go negative when I perform an analysis immediately after starting the Micro GC?
What should I do if water gets sucked into the sample line of my Micro GC?
Why doesn't the TCD turn on when I turn the Micro GC on?
Why does the TCD filament fault out while performing a continuous analysis?
Why does the chromatogram show an unknown peak in my Micro GC?
Why the baseline is unstable in my Micro GC?
Why isn't my Micro GC turning on?
Why has the consumption of carrier gas used in my Micro GC increased?
Why the PC and Micro GC cannot communicate and remain offline? The cross over LAN cable connection is fine.
Why has the TCD filament burned out even though the carrier gas pressure is o.k. and there was no leak observed?
Why I am observing baseline noise or fluctuation in my Micro GC?
Why the Cerity software is taking a long time to start in my Micro GC?
How do I convert the report results for an analysis to Excel format in my Micro GC?
The baseline coming from my Micro GC is o.k. but, there are no peaks. What could be causing this?
The configuration between my Micro GC and PC is o.k. however, there is no communication and both remain offline. What would cause this?
How do I troubleshoot baseline instability problem in my GC Chromatogram?
Why are my GC peaks tailing?
How do I troubleshoot a retention time shift in my GC chromatogram?
What is the part number for the brown O-ring that is used to seal the liner in the 5890/6850/6890 Split/Splitless inlet?
What is the part number for the small white nylon fitting used in the Agilent 5890 flow path?
What is the part number of the gold seal used in the Agilent 5890/6850/6890 split/splitless inlet?
What is the part number for the angled wrench used to change the liners in the Agilent 5890/6850/6890 Split/Splitless inlet?
What is the part number for the capillary column nut for connecting columns to Agilent GCs?
Why won't my GC become ready for an injection?
What is the HP-IB address of my GC?
My FID detector signal output is 830,000 PA
When running a Capillary EPC Inlet in split mode with split vent flows > 200 ml/min, the system will not equilibrate at a low pressure setpoint as would be required by a 530 uM ID column at low flow rates.
How do I determine the cause of Ghost Peaks, High Background or Unstable Baseline on the 5890 / 6890 ECD?
Do GC's have asbestos in them?
The Alignment light is on, on my 7683 Autoinjector tower, how can I fix this?
How do I get a copy of a Material Safety Data Sheet (MSDS) online?
What is the part number for the column installation tool?
What are the most commonly used injection port liners?
What is the part number for the white plastic fitting used on the 5890 flow system?
What supplies are needed to convert a 7673B, 18593B or a G1513A to an automated .250/320 on-column injector?
What are the part numbers for the Nanoliter Adapters?
What traps are recommended for GC?
What is the procedure for installing glass press-fit connectors or splitters (Y-connector) to fused silica (FS) columns or tubing?
What is the part number for the column installation tool?
What is the recommended carrier gas purity?
How can I find a part number if I only have a description?
How do I place an order for consumables?
Can I use house air for my FID instead of bottled air?
Are there applications that use argon as the carrier gas? If so, what does the Van Deetmer plot look like?
Are there any problems with injecting samples neat?
How do you know when the glass wool is dirty and it’s time to change the wool or the liner?
How much glass wool should be used in a liner?
