GC-4500 Gas Chromatography System
5 kinds of sample injectors and all conventional detectors can be attachable depending on samples for analysis. In particular, for analysis of environmental samples (water quality, air, soil and wastes) satisfactory outcome can be achieved by connecting a sample preparation system such as the Purge & Trap.
  • Automatic flow control and ignition of the FID- flame
  • Auto-start of chromatogram when sample is injected
  • Gas save function (Capillary Injector)
  • TCD maximum current control based on the type of gas
  • Optional valves (solenoid, 2-position) control function
  • Automatic notification of power-off
Intelligent Pneumatic Control (IPC):
  • Full automatic flow control of IPC
  • Pressure range: 0-100psi (resolution: 0.01psi)
  • Flow range: 0-500mL/min (resolution:  0.01mL/min)
  • Split ratio up to 5000:1
Auto Sampler/Injector:
  • Dual inlet injection capability
  • Variable injection/syringe fill rates
  • Methods linking
  • Multiple solvent/waste bottles
  • Syringe range 5uL-250uL
  • Air gapping capability
  • Multiple tray options: 120 vials, 1.8mL; 220 vials, 0.8mL; 60 vials, 10mL
Gas Sampling Valve:
  • Two Valves can be controlled by Air Actuation
  • Full automation system is built along with the automatic Run/Stop function

Excellent accuracy, reproducibility
Packed Inlet:

  • 1/4”,1/8” Glass-lined Metal Liner are available
  • On-Column injection method (direct injection of sample into column) is available using 1/4” Glass Column
  • 0.53mm ID Capillary Column can be used
Capillary Inlet:
  • High resolution, prompt analysis time and most typical inlet system
  • Split and Splitless mode can be selectable

DETECTORS - High selectivity and sensitivity
FID (Flame lonization Detector):
  • Improved sensitivity into 19mCoulomb/g Carbon
  • Easy to disassemble and assemble detector
  • Minimization of sample degeneration as well as jet pollution by means of inert quartz jet
  • Auto ignition of hydrogen flame
  • Use as TID by replacing a collector and bead
TCD (Thermal Conductivity Detector):
  • High detection reproducibility by excellent temperature stability
  • Supplying static current to 4 Rhenium-Tungsten filaments and selecting the optimal reactivity by changing the filament current by 2mA according to detector temperature.
  • TID (Thermionic Ionization Detector); NPD:
    • Selective reaction to phosphorous or nitrogen compounds like organic phosphorous pesticides
    • TID Bead Current Auto Optimization: Automatic ignition as the optimal current supplied by sensing the bead condition of alkali Rb Salt.
    • The induction of nitrogen/phosphorous is more 104 times than that of carbon
PDD (Pulsed Discharge Detector):
  • ECD Mode: Analysis of organic chloric pesticides; MDQ-Pico (10-12 g) of Femto (10-15 g)
  • HID Mode: Non-destructive Detector; Noble gas analysis/ FID substitute
  • PDPID Mode


Easy and Excellent Control:

  • Exact flow/pressure control by IPC (Intelligent Pneumatic Control)
  • Auto ignition of FID flame
  • Auto control of TCD current
  • Auto start function as sample injection (Better reproducibility)
  • Check for GC operation by STATUS INFORMATION window
  • Auto repeat analysis function
  • Can Control 2-Position Valves (2ea) and Solenoid Valves (6ea)
  • Gas save function
Safety Function:
  • In case of FID flame off, auto off for Air/H2/ Make-up gas flow (available from next version)
  • TCD Filament protect function: Current off when the Carrier/Reference Gas does not flow (available from next version)
  • Automatic notification of power-off: It informs turning off the GC safely by one clicking of the disconnect button
  • Auto shutdown function when some problem happen by each device
Status Information Window:
  • Checking Analysis Progress
  • Confirming Serial Number and Hardware Version
  • Confirming Error Message

Schedule Program:
  • Control Solenoid Valves and 2-Position Valves
  • Auto Repeat Analysis


The Liquid Auto Sampler, an entirely new sampling system designed and built to automate any GC. If you are looking for a sampling system to replace an older, less reliable auto sampler, the Liquid Auto Sampler is the logical choice. The flexibility of the Liquid Auto Sampler also allows customization for special applications. State-of- the-art component technology with easy-to-use operating features make the Liquid Auto Sampler suitable for routine as well as research level sampling requirements.
  • Direct Syringe Injection
  • Variable Injection Rates
  • Variable Syringe Fill Rates
  • Dual Inlet Injection Capability
  • Syringe Range 5uL-250uL
  • Multiple Tray Option: 120 vials, 1.8mL; 220 vials, 0.8mL; 60 vials, 10mL
  • Uses Off-the Shelf Syringes

The Headspace Auto Sampler utilizes a closed sample introduction system. Unlike syringe injection systems, the loss of headspace vapor during the injection process due to vapor pressure changes is never a concern. In addition to the sensitivity benefits of the Dynamic Headspace technology, the Headspace Auto Sampler delivers the added flexibility of performing traditional fixed loop injections and time-based injections incorporated within a single system. Whether your preference is to make a highly reproducible timed injection to minimize the number of sample pathway components, a known/fixed volume loop injection or a concentrated injection for improved sensitivity, the Headspace Auto Sampler is the right instrument for you.

  • Horizontal rotary evaporation cuts equilibration times by 80%
  • High-capacity 90-position sample carousel
  • Automatic leak and integrity check
Patented Dual Needle Dynamic Headspace
  • Static Loop Injection-A fixed volume loop available in various sizes is filled with the headspace vapor to inject a known volume of sample into the GC.
  • Static Time-Based Injection (Pressure Balanced)
  • The headspace vapor is directed to the GC for a programmed period of time.
  • Dynamic Headspace Trap Injection -The headspace vapor is continually displaced from the sample vial and collected on an adsorbent trap for a concentrated injection.     

    Inner volume16.25 liter (250mm W* 260mm D*250mm H)
    Temperature RangeAmbient to 400℃
    Linear Programming RateMax: 120℃/min up to 400℃ (0.1℃ increment)
    Heating RateAbout 2.3 minutes 50℃ to 300℃
    Cooling RateAbout 6 minutes 300℃ to 50℃
    Run TimeAutomatically computed to 999.9 minutes by 0.1 minute increments
    Temp. Programming30 Step
    Pneumatics (IPC Module)
    IPC pressure range0 to 100psi
    IPC flow range0 to 450mL/min
    Pressure resolution0.01psi
    Flow resolution0.01mL/min
    Support IPC ChannelsUp to 20, for inlets, detectors or auxiliary gases (including pressure channel)
    Pressure/flow programming stepsup to 5 steps
    EPC controlInlets and detectors (carrier, split vent, make-up and combustion gases)
    Split ratioup to 5000:1
    Detector Modules Flow set range
    FID/NPD make-up0-100 mL/min
    FID air0-450 mL/min
    FID hydrogen0-100 mL/min
    TCD make-up0-130 mL/min
    TCD reference0-100 mL/min
    FPD make-up0-130 mL/min
    FPD air0-250 mL/min
    FPD hydrogen0-300 mL/min
    Inlet Modules Pressure sensor
    Accuracy±2% full scale
    Temp. coefficient±0.01psi/℃
    Inlet Modules Flow sensor
    Accuracy±5% depending on carrier gas
    Repeatability±0.35% of set point
    Temp. coefficient±0.20mL/min normalized temp. and pressure
    Data Acquisition System
    Dynamic range>2*106
    Sampling RateUser selectable 10-60Hz per channel
    Analog signal voltage ranges±10,5,2.5,1.25V
    Analog to digital conversion resolution21 bits at all sampling rates
    External event I/O ports8
    RemoteStart, stop control independent

    Data Visualization
    Up to chromatograms in real time, zoom/unzoom at any time; Scrutinize focused peaks, display baseline; Chromatograms overlap, background subtraction.

    Data Management
    Data export results as Text files; Dynamic data exchange to Microsoft windows applications; Various data management techniques support the time event programming (17items).

    Custom reports
    Peak number, retention time, peak name, peak area, peak height, area%, height%, peak start time, theoretical plates, capacity factor, peak resolution, peak asymmetry, regression coefficient value, correlation coefficient value, standard deviation, weight function, relative retention time, calibration equations.
    Dimensions, weight and power
    Power220V, 50/60Hz,2.7kW
    Inlet System (Injector)
    Maximum installed Qty.2
    TypePacked column inlet, Septum purge Packed column Inlet, Capillary Column Inlet, GSV, Auto Gas Sampling System and etc.
    Temp. RangeAmbient to 400℃

    Packed Inlet
    1/4", 1/8" Glass-lined Metal Liner are available.
    On-Column injection method is available using 1/4" Glass Column
    0.53mm ID Capillary Column can be used

    Capillary Inlet
    High resolution, prompt analysis time and most typical inlet system
    Split and Splitless mode can be selectable

    Gas Sampling Valve
    4 Valves can be controlled by Air Actuation
    Controlling Multi Position Valve
    Full automation system is built along with the automatic Run/Stop function
    Thermal Conductivity Detector (TCD)
    CellFlow through cell design, 4 Rhenium/tungsten filaments (32/each)
    Temp. RangeAmbient to 400℃
    Bridge Power SupplyConstant current system (1-400mA)
    Filament Protection circuitAutomatically protect from over load and over current
    Micro-cell TCD
    Cell4 coaxial, hot wire cell
    Response Time150milliseconds
    Internal Volume20uL
    ColumnIdeal for use with capillary columns
    Flame Ionization Detector (FID)
    Electrode Voltage-230V
    MDQ0.700pgC/s for dodecane
    Sensitivity>9 mCoulomb/g Carbon (for C3H8)
    Jet TipMade by Quartz and supplied with -230V for excellent ion collection
    Temp. RangeAmbient to 400℃
    VariabilityCan be used TID by exchanging the bead and collector
    Thermionic Ionization Detector (TID)
    FeaturesElectrically heated, alkali-impregnated thermionic surface in chemically reactive H2-Air environment
    ResponseN, P specific
    Bead CurrentAuto Optimization
    Thermionic SourceRigid Rb/Cs/Sr-ceramic surface on Ni-ceramic sublayer

    at H2=3mL/min
    N/C 105 (azobenzene/C) 10gN/gC
    N/P 0.4 (azobenzene/malathion) gN/gP
    P/C 105 (malathion/C ) 10gP/gC
    MDQ10-13 gN/sec(azobenzene)
    Linearity105 (nicotine)
    VariabilityCan be used for FID by exchanging the bead and the collector
    Pulsed Discharge Detector(PDD)
    SourcePulsed DC discharge in He

    10X range: 1.0V/nA
    1X range: 1.0V/nA±1%(HID only)

    10X: 10nA full-scale
    1X: 100nA full-scale(HID only)

    Organic compound (Low ppb)
    Permanent gas (Low ppm)

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