DSH112A Gas Chromatograph
- Brand-newdesignedmicrocomputertemperaturecontrolsystemofworldadvancedcontroltechnology.Highaccuracyoftemperaturecontrol(optimum:0.05C),highreliabilityandanti-interference.
- Controlandoperatingparameters(includingfordetector)setupbythekeyboard.Self-diagnosissystem,power-failprotection,filestorageandcall,limitedtemperaturesetting.Accuratedisplayofsettingandactualvalueoftemperaturecontrolofeachpath,bridgecurrentofTCD,sensitivityofFID,retentionandanalysistime.
- Fourpathsofindependentcontrolsections:columnoven,sampleinjector,detectorandthermalconductivepond.
- 5-rampprogrammedtemperaturerisingcontrol.Auto-dropoftemperatureofcolumnoven(auto-openingthedoorbehindtheoven)toafastcooling.
- FIDandTCDdetectorscanbeinstalledatthesametimewithhighsensitivity.Shorttimetobestabilizedandeasytocleanandinstallnozzle.
- Packedcolumnandcapillarycolumn(0.53largediameterorsmalldiameter)canbeinstalledeasilyincludingacompletesetofsplitsamplingconnectorandtailingconnectortobeinstalledfreeofcharge.Optional0.53mmlargediametercapillarydirectsamplerisavailableforchoice.
- Analysiscanbeconductedinpackedorcapillarycolumnwith,multiplesamplingmethods.
- Packedcolumn:on-columnsampling,instantaneousvaporizedsamplingandgassampling.
- Capillarycolumn:splitsamplingand0.53mmlargediametercapillarydirectsampling.
- Constructionofdualgaspath,dualsampleinjectoranddualpackedcolumnsystemcaneffectivelyavoidbaselineundulationanddriftinrealtimeandfacilitateprogrammedtemperaturerisinganalysis.Accurateandscalestypegaspathcontrolvalveswillprovideahighrepeatabilityandstability.
- Advancedfunctions:autoON/OFFtemperaturecontrolsystem,permanentdatastorage,filestorageandcallandover-temperatureprotection.
- Largevolumecolumn(300x280x270)canholdcapillarycolumnanddualpackedcolumn.Built-inheatingfilamentstructureisinfavorofquartzcapillaryanalysis.
- Acompletesetofaccessoriesincludingpurifier,pressure-reducingvalve,gaspathtube,wrenchandtools,injectionneedleandconnectorsofallkindsareprovidedfreeofchargeandarereadytoconnectwithsupply-airsystempreparedbyusers.
- Temperaturecontrol:
Temperaturerange:roomtemperatureon7℃~399℃(incrementsby1℃)
TemperatureObject:oven,detector,thermalconductivity,injector.
Programmingphase:fivebands
Programmingrate:0.1℃~40℃/min(incrementsby0.1℃)
Holdingtime:0~655min(incrementsby1min)
- Flameionizationdetector(FID):
DetectionLimit:DFID≤5×10-11g/s(sample:C16)
Bestresults:DFID≤1×10-11g/s
Baselinenoise:≤5×10-14A
Baselinedrift:≤6×10-13A/h
Linearrange:≥106
- Thermalconductivitydetector(TCD)
Sensitivity:≥2000mV.ml/mg
Baselinenoise:≤20μV
Baselinedrift:≤30μV
Linearrange:≥104
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