Features
1. Inlets
･Direct Inlet...For Packed Column
Inlet for packed columns such as Glass Column (O.D.6.2mm) ･Stainless Column (O.D.3.18mm) .
On-Column style is available for Glass columns to introduce the sample directly into the column inlet port,
and special SUS column adaptor is available for Stainless column.
･Split/Splitless Inlet...For Capillary Column
Back-Pressure Control Inlet for Capillary column for split/splitless modes.
Easy to change the split proportion as the column flow volume does not changealong with the total flow volume.
･Direct Inlet with Septum Purge...For Wide Bore Column
Inlet to introduce the sample directly to the wide bore column (I.D.0.53mm) .
Less bleeding effect with the Septum Purge function.
Also can be used as an On-Column inlet for pcaked glass column.
･Insert Inlet...For Packed Column
Leave the involatile compounds in the sample in the glass insert to prevent the column from the contamination.
Glass column uses Inlet I.Stailness column uses Inlet I with SUS column adaptor (optional).
Stability
・Reproducibility of Retention Time
Reproducibility of retention time required with capillary column analysis is realized
by stable column oven temperature control and carrier gas control.（Company Experiment）
Circadian precision of retention time:Temperature 25C Temperature Rise 10C/min
| \ |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
平均値 |
SD |
RSD |
| n-octane |
3.452 |
3.458 |
3.46 |
3.461 |
3.462 |
3.463 |
3.462 |
3.461 |
3.462 |
3.461 |
3.46 |
0.0032 |
0.0922 |
| n-decane |
6.557 |
6.564 |
6.567 |
6.57 |
6.572 |
6.571 |
6.572 |
6.569 |
6.571 |
6.57 |
6.568 |
0.0047 |
0.0711 |
| 1-octanol |
7.437 |
7.446 |
7.45 |
7.451 |
7.453 |
7.454 |
7.453 |
7.451 |
7.452 |
7.452 |
7.45 |
0.005 |
0.0677 |
| 2,6-dimethylphenol |
7.817 |
7.825 |
7.828 |
7.83 |
7.831 |
7.833 |
7.832 |
7.831 |
7.831 |
7.83 |
7.829 |
0.0047 |
0.0602 |
| 2,6-dimethylanaline |
8.67 |
8.677 |
8.681 |
8.683 |
8.685 |
8.686 |
8.685 |
8.683 |
8.683 |
8.683 |
8.682 |
0.0048 |
0.0552 |
| n-dodecane |
9.678 |
9.686 |
9.689 |
9.691 |
9.693 |
9.694 |
9.692 |
9.692 |
9.69 |
9.692 |
9.69 |
0.0047 |
0.0484 |
| 1-dodecanol |
10.48 |
10.489 |
10.493 |
10.495 |
10.497 |
10.498 |
10.497 |
10.495 |
10.494 |
10.495 |
10.493 |
0.0053 |
0.0506 |
| n-tridecane |
11.119 |
11.126 |
11.131 |
11.133 |
11.134 |
11.135 |
11.135 |
11.133 |
11.132 |
11.133 |
11.131 |
0.005 |
0.0447 |
| methyl-n-caproate |
11.206 |
11.214 |
11.218 |
11.219 |
11.223 |
11.223 |
11.223 |
11.221 |
11.22 |
11.221 |
11.219 |
0.0053 |
0.0471 |
| 1-chloronaphthalene |
11.822 |
11.83 |
11.834 |
11.836 |
11.838 |
11.838 |
11.837 |
11.836 |
11.835 |
11.836 |
11.834 |
0.0049 |
0.0412 |
| 1-dodecanol |
13.211 |
13.218 |
13.223 |
13.225 |
13.227 |
13.227 |
13.227 |
13.225 |
13.223 |
13.225 |
13.223 |
0.005 |
0.0381 |
| n-hexadecane |
14.972 |
14.982 |
14.986 |
14.988 |
14.988 |
14.99 |
14.989 |
14.988 |
14.987 |
14.987 |
14.986 |
0.0053 |
0.0352 |
| antracene |
16.741 |
16.75 |
16.753 |
16.756 |
16.758 |
16.76 |
16.757 |
16.756 |
16.754 |
16.756 |
16.754 |
0.0054 |
0.032 |
| methyl-n-parmitate |
18.336 |
18.348 |
18.35 |
18.352 |
18.355 |
18.355 |
18.353 |
18.353 |
18.353 |
18.353 |
18.351 |
0.0056 |
0.0306 |
| n-eicosane |
19.252 |
19.259 |
19.262 |
19.266 |
19.269 |
19.268 |
19.264 |
19.266 |
19.266 |
19.268 |
19.264 |
0.0052 |
0.0269 |
|
2. Column Oven
･Temperature Rising Speed
Temperature rising speed is improved for higher temperature setting.
Linear temperature rising rate is 30C/min up to 300C and 20C/min up to 450C. Company Experiment)
･Cooling Time
Improved cooling function cools the column oven in a short time after the high temperature analysis.
Improved temperature control function stablizes the initial analysis temperature in a short time.
･Temperature Distributor
Provides favorable temperature distribution required by the capillary column analysis. (Company Experiment)
Detector
3. Thermal Conductivity Detector (TCD)
Auto-Zero function is now added.
A newly built Thermal Conductivity Detector (TCD) is installed in the GC-4000 detector part
and it does not disturb when auto injector or multi injector is installed.
4. Flame Ionization Detector (FID)
Improved rate of S/N between detector and eletron meter made a minimum detecting volume 1/2 compared
to GL's conventional systems.
[5×10-12 ]→[2.5×10-12] (gC/sec,Octane)
Three kinds of modes are available:
Display & Key Board
5. Large LCD Display
More information is available by the 20 digits and 4 line LCD.
Three colors, green, yellow, and red shows current status.
For better sight and smoother click touch, the silicon rubber key is equiped.
It ensures the accurate touch and more efficient operation.
Green:Ready
Yellow: Not Ready/Busy
Red:Error
Flow Controllers
･Gathered Operating Part
Frequently used operating parts, such as gas controlling valve and gas outlets etc.,
are gathered at the bottom right.
It prevents the system from the glitch by closing the door.
| Standard System (Combinations of the Inlets and decector) |
| GC-4000 DDT |
Direct Inlet×2,TCD |
| GC-4000 DDF(F) |
Direct Inlet×2, Differencial FID |
| GC-4000 DDTF(F) |
Direct Inlet×2,TCD,Differencial FID |
| GC-4000 DSF |
Direct Inlet×1,Split/Splitless Inlet, Single FID |
| GC-4000 DSTF |
Direct Inlet×1,Split/Splitless Inlet,TCD, Single FID |
| GC-4000 SF |
Split/Splitless Inlet×1,Single FID |
| GC-4000 WF |
Direct Inlet with Septum Purge×1,Single FID |
| GC-4000 IF |
Insert Inlet×1,Single FID |
| Column Oven |
| Type |
Forced circulation isothermal air oven |
| Demensions |
250(W)×160(D)×250(H)mm |
| Temperature |
Room Temperature +5ºC (inlet&detector at 300ºC) -450ºC |
| Range |
Use cooling unit for required temperature is below+5ºC |
| Cooling |
450→50ºC within 6 mins (Room Temperature 20ºC) |
| Time |
The heaters at inlet and detector are OFF |
| Temperature |
Below 0.1ºC to Ambient Temperature 10ºC |
| Coefficient |
(Ambient Temperature 10～30ºC) |
| Temperature Accuray |
Setting Temperature (Absolute Temperature)±1% |
| Temperature |
Within±1% |
| Deviation |
(Coil Diameter 170mm, at 150ºC) |
| Overheating |
1)Observationat the highest temperature (Settable in range of 80～450ºC) |
| Prevention |
2)Observingcirculation by the temprature sensor
(Observing temperature fixed at approx 500ºC）
|
| Temperature Program |
| Rising Levels |
5 levels |
| Temperature Setting |
-50～450ºC (1ºC) |
| Programming Time |
650 min（AllSteps） |
| Temperature Rise |
0～99.9ºC/min（0.1ºC/min） |
| Program File Number |
30 |
| Body |
| Electric Source |
AC100V±10% 50/60Hz ,
20A(SF)～23A(DDTF(F))* |
| Demension |
Approx.562(W)×520(D)×450(H)mm |
| Weights |
Approx.46kg(DSF) |
*Electric sources vary depending on thecombination of the inlets and detectors.
Please contact GL Sciences for thedetails
| Inlets |
| Temperature Range |
Room Temperature～450ºC(1ºC) |
| Overheating Prevention |
Observation at the highest temperature(80～450ºC) |
| For packed column |
Direct Inlet→D |
| For capillary column |
Split/Splitless Inlet→S |
| For wide bore column |
Direct Inlet with Septum Purge→W |
| For packed column |
Insert Inlet→I |
| Carrier Gas Flow Control |
| Type |
Manaul Setting of Mechanical Valve |
| Primary Pressure Control |
Pressure Adjuster(NoPressure Indicator） |
| Column Flow Volume Control |
|
| For packed column |
Flow Volume Control by Flow Control Valve |
| For Capillary Column |
Pressure Control at the Column Inlet by Back-Pressure Control |
| For Wide Bore Column |
Flow Volume Control by Flow Control Valve |
| Septum Purge Flow Volume |
Flow Volume Control by Flow Control Valve |
| Thermal Conductivity Detector(TCD) |
| Cell Type |
Distribution Type |
| Element |
Rhenium Tungsten Filament(110Ω , 4 element） |
| Temperature |
～350ºC |
bgcolor="#ffffcc"
| Overheating Prevention |
Observation at the highest temperature(80～350ºC) |
| Control Type |
Standard provision (x10 amplifier) |
| Current Setting |
0～200mA (with overflow electricity prevention) |
Send an inquiry |
