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Gas Chromatography systems

At CE Instruments we can build a GC to your specification and needs.

Download the GC request form here

 

You take the basic GC.

Specifications

Operating temperature : 4'C above ambient to 450'C*
Temperature set-point resolution : 1'C
Maximum set-point temperature rate : 100'C/min
Maximum run time : 9,999 min
Programming ramp/plateaus : 15/16
Column bleed compensation standard for two channels
Temperature Stability : +-0.05'C
Fast cooling down rates : 6.5 min(from 450'C to 50'C)

* With LN2 cryo : -80'C to 450'C
* With CO2 cryo : -55'C to 450'C

Sample Preperation

Headspace, Liquid and SPME Auto sampler
This is a single unit combining static Headspace analysis, Liquid sample injection and SPME (Solid Phase Microextraction)! It can save your time and money, increase analysis flexibility.

Pyrolysis, Pyroprobe
This pyrolysis allows you to analyze the samples which were previously unsuitable for analysis without extractions or derivatizations.
By using pyrolysis, samples such as paint, adhesives, tapes, caulk, food packaging, rubber, plastic,
papers, ink, coating and a full range of household products can be analyzed for qualitative and
quantitative information

Purge Housing
When you analyze samples of O2, N2, etc with low concentration of a few ppms, the purge housing is
very useful for this analysis. Purge housings eliminate any possible diffusion from the atmosphere into
the valve, or safely vent fugitive emissions from the valve.

Flame Ionization Detector (FID)
Thermal Conductivity Detector (TCD)
Pulsed Discharge Detector (PDD)
Nitrogen Phosphorous Detector (NPD)
Flame Photometric Detector (FPD)
Electron Capture Detector (ECD)

Detectors

Flame Ionization Detector (FID)
For detection of any organic compounds which can be ionized by hydrogen/air flame
Maximum temperature : 450’C
Automatic flame ignition/flame out detection
MDL : < 3.2 pg carbon/sec as dodecane using N2 carrier and 0.4572 mm jet
Linear Dynamic Range : < +-10 %, 107 with N2 carrier and 0.4572 mm jet
Sensitivity : 19 m Coulomb/sec

Thermal Conductivity Detector (TCD)
For universal detection of every compound including inorganic compounds except the carrier gas used
Maximum temperature : 400'C
Flow through cell : 4 Rhenium - tungsten filaments
MDL : < 5 ng dodecane/ml
Linear Dynamic Range : 105 (+- 5 %)

Pulsed Discharge Detector (PDD)
PDD has two different modes, one is PDECD and the other is PDHID. The PDECD is a selective detector for monitoring high electron affinity compounds such as freons, chlorinated pesticides, and other halogen compounds. For this type of compound, the minimum detectable quantity (MDQ) is at
the femtogram (10-15) or picogram (10-12) level. The PDD is similar in sensitivity and response characteristics to a conventional radioactive ECD, and can be operated at temperatures up to 400'C. For operation in this mode, He and CH4 are introduced just upstream from the column exit.

The other mode, the PDHID is an universal, non-destructive, high sensitivity detector. The response to both inorganic and organic compounds is linear over a wide range. Response to fixed gases is positive (increase in standing current), with an MDQ in the low ppb range.

Nitrogen Phosphorous Detector (NPD)
For selective detection of organic nitrogen and phosphorous compounds
Maximum temperature : 400'C
MDL : < 0.4pg N/sec(Azobenzene) or < 0.2pg P/sec(Malathion)
Dynamic Range : > 104 (N and P)
Selectivity : 35,000 to 1 : gN/gC or 75,000 to 1 : gP/gC

Flame Photometric Detector (FPD)
For selective detection of sulfur and phosphorous compounds
Sensitivity : 5.0 x 10-13 gP/sec (P mode), 5.0 x 10-11 gS/sec (S mode)
Dynamic Range : 105 (P mode), Calibration curve is compulsory(S mode)
MDL : Vapona -1/ul Sol 15ppb Vapona in Hexane produces a peak 2x the noise
Tetrahydrothiophene -1/ul Sol 0.5ppm in Benzene gives a peak 2x the noise
Optical Filters : 525 nm(P mode), 394 nm(S mode)

Features

Powerful Control
- Perfect control of all parameters by Autochro-3000 Data System
- Stable and precise control with powerful dual CPUs
- Remote Time Control : Remote Time Delay and Remote Signal Output

Easy Operation
- Intuitive user interface for a keyboard
- Column conditioning function
- Stores up to 20 different analytical methods

Economical Function
- Time scheduling function
: Scheduling of system ON and OFF
- Run time based control
: Automatically repeatable runs up to 9,999 analyses

Safety Function
- Automatic flow & temperature control
: Detector “ON” after checking flow between reference and sample to protect TCD cell
- Automatic flame ignition after checking the FID temperature
: Air/H2 flow will be blocked automatically if auto-ignition is set as “OFF”

Data System

The sophisticated Clarity data system is easy to use and offers extensive data management plus full control of the GC. The software is designed for 21 CFR Part 11 Compliance and through full compatibility with MS Windows XP and Vista seamlessly handles data processing and instrument control using an ultra-reliable LAN interface.

Overlay
YL-Clarity simultaneously displays a virtually unlimited number of chromatograms and their mathematical modification; for example,mutual deductions or derivations of any order.

Measuring
Simultaneous data acquisition from up to four independent chromatographs,each chromatograph can acquire data from up to 12 detectors.

Download the GC request form here

Download and fill in the request form and fax or email back.