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Agilent 4890D Gas Chromatograph 说明书

2021-04-21 来源:趣尚旅游网
The Agilent 4890D gas chromato-graph (GC) is a version of the 5890 Series II GC configured specifi-cally for either one-or two-channeluse.Safety and Regulatory Certifications•Conforms to the following safetystandards:–Canadian StandardsAssociation (CSA): C22.2No. 1010 –CSA/Nationally RecognizedTesting Laboratory (NRTL):UL 3101–International ElectrotechnicalCommission (IEC): 1010-1–EuroNorm (EN): 61010-1•Conforms to the following regulations on ElectromagneticCompatibility (EMC) and RadioFrequency Interference (RFI):–CISPR 11/EN 55011: Group 1Class A–EN 50082-1•Designed and manufacturedunder a quality system regis-tered to ISO 9001•Declaration of Conformity available•Usage: Indoor use•Maximum Altitude: 15,000 feet•IEC Pollution Degree 2•IEC Installation Category II•Clean with damp clothAgilent 4890D Gas ChromatographSpecificationInstrument Dimensions Heated Devicesand WeightFive heated zones standard:Height:18-3/8 in. (465 mm)•Two detectorsWidth:25-7/8 in. (655 mm)•Two inletsDepth:20-1/8 in. (511 mm)Weight:90 pounds (41 kg)•One auxiliaryMethods stored: TwoEnvironmentalOperating range:Power Requirements•0–55 °C ambient (20–27 °C Voltages:120/200/220/240optimum)Range:+10%, –10% each•5–95% humidity (50–60% Frequency:47.5–66 Hzoptimum)Consumption:2,200 VA maxOutput:7,500 Btu/hr maxDetector SignalFor external processing by arecorder, integrator, or computer:Signal PathSignal BandwidthMinimum Peak Width*0–1 mV analog~4 Hz****0–1.1 V analog2.6 Hz0.50 secINET digital4 Hz0.32 sec*Peak width can be calculated accurately by an external measuring device (e.g., integrator) operating at >4-Hz bandwidth frequency.**Actual bandwidth depends on the input impedance of the measuring device.Note: Use of the 4890D GC with an Agilent 3395 integrator in electromagnetic fieldsgreater than 3 volts/meter can result in baseline noise not exceeding 15 mV.Standard Inlets on the4890D GC

Split/Splitless Capillary

•Range to 400 °C in 1 °C

increments

•Back-pressure design permits

independent adjustment of splitflow rate without affecting

column flow, 0–30 psi head pres-sure gauge, and regulator•Septum purge built in at

3 mL/min

•Accepts columns up to 1.2-mm od•Accepts 1/4-in. glass column for

on-column injection

•Multimode design includes split

and splitless injection

•Air fan built into mainframe to

assist in cool-down of inlet•Splitless purge time variable in

0.01-min elements

Packed with Septum Purge

•Range to 400 °C in 1 °C

increments

•Flow control/forward-pressure

design, 0–100 psi head pressuregauge

•Septum purge built in at

1.5 mL/min

•On-column injection available

with configuration A, 1/4-in. odglass columns

•Individual liners for use with 1/8-and 1/4-in. metal columns as wellas for Series 530-µm columns•Liners available for use with

replaceable glass inserts

•Air fan built into mainframe to

assist cool-down of inlet

2

Detectors

Thermal Conductivity Detector

•Range to 400 °C

•Single-filament (single-column)

design has fluidic switching ofreference and analytical carrierflows; a passivated tungsten-rhenium filament is used in a 3.5-µL cell operating at a con-stant temperature difference rel-ative to the detector blocktemperature

•Minimum detectable: <400 pg/mL

carrier—equivalent to <1 ppm ofneon in 1 mL of air (may beadversely affected by acousticnoise in the laboratory environment)

•Linear dynamic range: <±5% over

105range

•Digital gain setting time–pro-grammable through the keyboardConditions: detector 100 °C, 45 mL/min switching and 30 mL/min analytical flow ofhelium, propane sample

3

Flame Ionization Detector

•Range to 450 °C

•Grounded jet and current limited

design for operator safety•Push-button flame ignition•Fused silica columns insert

within 2 mm of the jet tip•Sensitivity:

–>18 mCoul/g carbon:

nitrogen carrier, 0.018-in. id jet–>15 mCoul/g carbon:

helium carrier, 0.018-in. id jet –>22 mCoul/g carbon:

nitrogen carrier, 0.011-in. idcapillary jet

–>18 mCoul/g carbon:

helium carrier, 0.011-in. id capillary jet

•Minimum detectable: <5 pg

carbon/sec, nitrogen carrier atS/N=2

•Linear dynamic range: <±10%

over a 107range with 0.018-in. idjetConditions: column flow 50 mL/min,45 mL/min H2, 650 mL/min air,propane sample

Electron Capture Detector

•Range to 400 °C

•A coaxial design with a 15 mCi

source (555 MBq) of Ni–63plated on the interior of thelower block

•Constant current mode of opera-tion features switch selection ofpulse parameters for using eithernitrogen, hydrogen, helium, orargon/methane carrier gas•Minimum detectable level:

<0.04 pg/sec lindane

•Dynamic range: >104for lindaneConditions: detector 250 °C, 60 mL/min nitrogen carrier

Column Oven

•Usable volume:

–11 in. × 12 in. × 6.5 in. (h × w × d)

–279 mm × 305 mm × 165 mm (h × w × d)•Column span: 228.5 mm, 9 in. (coil size)

•Automatic cooling under processor control•

Operating range:

4 °C above ambient to 450 °C:80 to 450 °C with cryogenic cooling

Setpoint entry:

–1 °C for temperatures–0.1 °C for program rates•

Programming:

–Rates 0.1 to 70 °C* per min–650 min maximum run time–Three ramps withinitial/final holds

Technical Performance

•Accuracy (true temperature rela-tive to setpoint)

Specification: +1% (°K) from 4 °Cabove ambient to 450 °C•Stability (effect of ambient

change on actual temperature)Specification: <0.01 °C for 1 °C ambient change

•Calibration (setting true temper-ature at a setpoint)

Oven can be recalibrated to ±0.01 °C with appropriate instrumentation

+0.075+0.21+0.050100 ˚C Oven+0.037-0.40300 ˚C Oven-0.460.00-0.58Oven Heating ProfilesTemp (˚C)Temp (˚C)300118 Vac240 Vac108 Vac300One Series 530-injection port, and one detectorµ column, oneat 300 200108 Vac Curve: One emptyfor 1 hour prior to cooldown)˚C (oven held at 300 ˚C20010-ft ss column; injectionport and detector unheated100118/220 Vac: One Series530-10050port, and one detector at 300 µ column; one injection˚C0246810125002468Time (min)Time (min)•Gradients (temperature varia-tions within a column)

Specification: less than 2 °Cwithin a 9-in. coil anywherewithin the operating range*Achievable rates depend on zonetemperature, voltage, and columns.

Agilent shall not be liable for errors contained herein orfor incidental or consequential damages in connectionwith the furnishing, performance, or use of this material.

Information, descriptions, and specifications in thispublication are subject to change without notice.Copyright© 2000

Agilent Technologies, Inc.Printed in the USA 6/2000(23) 5968-4475EN

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