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مشخصه
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توضیحات
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آون ستون کروماتوگرافی گازی GC
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Dimensions: 28 × 31 × 16 cm. Accommodates up to two 105 m × 0.530 mm id capillary columns or two 10-ft glass packed columns (9 in coil diameter, 1/4 in od), or two 20-ft stainless steel packed columns (1/8 in od).
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Operating temperature range suitable for all columns and chromatographic separations. Ambient temperature +4 °C to 450 °C.
With LN2 cryo cooling: –80 to 450 °C.
With CO2 cryo cooling: –40 to 450°C
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Temperature set point resolution: 0.1 °C.
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Supports 20 oven ramps with 21 plateaus. Negative ramps are allowed.
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Maximum achievable temperature ramp rate: 120 °C/min (120 V units are limited to 75 °C/min).
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Maximum run time: 999.99 min (16.7 h).
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Oven cool down (22 °C ambient) 300 °C to 50 °C in 4.5 min).
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Ambient temperature rejection: <0.01 °C per 1°C
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کنترل الکترونیکی پنوماتیک ها (EPC) کروماتوگراف گازی GC
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Compensation for barometric pres- sure and ambient temperature changes is standard.
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Pressure setpoints may be adjusted by increments of 0.001 psi, with typical control ± 0.001 for the range
0.000 to 99.999 psi; 0.01 psi for the range 100.00 psi to 150.00 psi
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User may select pressure units as psi, kPa, or bar.
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Pressure/flow ramps: Three maximum.
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Carrier and makeup gas settings selectable for He, H2, N2, and argon/methane.
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Flow or pressure setpoints for each inlet or detector parameter with both Agilent 7890A and Agilent ChemStations.
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Constant flow mode is available when capillary column dimensions are entered into the 7890A.
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Split/splitless, Multimode, and PTV inlets have flow sensors for the con- trol of split ratio.
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Inlet modules
Pressure sensors: Accuracy:
< ± 2% full scale, Repeatability:
< ± 0.05 psi, Temperature coefficient: < ± 0.01 psi/°C, Drift:
< ± 0.1 psi/6 months.
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Flow sensors: Accuracy: < ± 5% depending on carrier gas, Repeatability: < ± 0.35% of setpoint,
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Temperature Coefficient
< ± 0.20 mL/min (NTP)* per °C for He or H2; < ± 0.05 mL/min NTP per
°C for N2 or Ar/CH4.
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Detector modules:
Accuracy: < ± 3 mL/min NTP or 7% of setpoint, Repeatability:
< ± 0.35% of setpoint
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ورودی های کروماتوگراف گاز GC
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Maximum of two inlets installed.
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Inlets available:
- Packed purged injection port (PPIP)
- Split/Splitless capillary inlet (S/SL)
- Temperature-programmable cool on-column (PCOC)
- Programmable temperature vaporizer (PTV)
- Volatiles inlet (VI)
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Split/Splitless گاز کروماتوگرافی GC
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Suitable for all capillary columns. (50 µm to 530 µm id).
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Split ratios up to 7500:1 to avoid column overload.
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Splitless mode for trace analysis. Pressure-pulsed splitless is easily accessible for best performance.
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Maximum temperature: 400 °C.
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EPC available in two pressure ranges: 0–100 psig (0 to 680 kPa) for best control for columns 0.200 mm diameter; 0–150 psig for columns
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Gas saver mode to reduce gas consumption without compromising performance.
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Optimized septum purge flow to eliminate “ghost” peaks.
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Total flow setting range: 0 to 200 mL/min N2
0 to 1,000 mL/min H2 or He
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Turn top inlet sealing system is built in standard with each 7890A S/SL inlet for quick, easy, injector liner changes
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دتکتور FIDگاز کروماتوگراف GC
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Minimum detectable level (for tride- cane): < 1.5 pg C/s
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Linear dynamic range: >107 (±10%). Digital data makes entire range available without range changes.
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Data rates up to 500 Hz accommodate peaks as narrow as 10 ms at half height.
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Standard EPC for three gases:
- Air: 0 to 800 mL/min
- H2: 0 to 100 mL/min
- Makeup gas (N2 or He): 0 to 100 mL/min
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Available in two versions: capillary column optimized or adaptable for either packed or capillary columns.
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Flame out detection and automatic reignition.
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Grounded jet.
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450 °C maximum operating temperature.
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دتکتور TCD کروماتوگرافی گازی GC
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Minimum detectable level: 400 pg propane/mL with He carrier. (This value may be affected by laboratory environment.)
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Linear dynamic range: >105 ±5%
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Unique fluidic switching design provides rapid stabilization from turn-on, low-drift performance.
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Signal polarity can be run programmed for components having higher thermal conductivity than the carrier gas.
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Maximum temperature: 400 °C.
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Standard EPC for 2 gases (He, H2, Ar, or N2 – matched to carrier gas type).
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Makeup gas: 0 to 12 mL/min
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Reference gas: 0 to 100 mL/min
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دتکتور Micro-ECD کروماتوگراف گازی GC
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Minimum detectable level: < 5.5 fg/mL lindane at standard checkout conditions, with a detector temperature of 300 °C and flow to the detector (makeup plus column) of 30 mL/min, this is equivalent to 5.5 fg/sec.
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Proprietary signal linearization Linear dynamic range: >5 × 104 with lindane.
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Data acquisition rate: up to 50 Hz.
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Uses ß emission of <15 mCi 63Ni
as the electron source.
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Unique micro-cell design minimizes contamination and
optimizes sensitivity.
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400 °C maximum operating temperature.
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Standard EPC makeup gas types: argon/5% methane or nitrogen; 0 to 150 mL/min.
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Dynamic range: >5 × 105 with
lindane.
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دتکتور NPD کروماتوگراف گاز GC
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MDL: < 0.1 pg N/s, < 0.03 pg P/s with azobenzene/malathion/ octadecane mixture with Blos bead
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MDL: < 0.4 pg N/s, < 0.2 pg P/s with azobenzene/malathion/ octadecane mixture with white ceramic bead
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Nitrogen-phosphorus detector (NPD), a detector specific to nitro- gen or phosphorus-containing com- pounds
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NPD available with one of two beads, Blos (glass) bead or white ceramic bead (legacy offering)
Compared to the legacy white ceramic bead, the Blos bead offers:
-Longer lifetime
-More stable operation during the bead’s lifetime
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Dynamic range: >105 N, >105 P with azobenzene/malathion/ octadecane mixture.
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Selectivity: 25,000 to 1 gN/gC, 75,000 to 1 gP/gC with azobenzene/malathion/octadecane mixture.
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Data acquisition rate: up to 200 Hz.
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Standard EPC for three gases:
- Air: 0 to 200 mL/min
- H2: 0 to 30 mL/min
- Makeup gas: 0 to 100 mL/min
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Available for packed/capillary columns or optimized for capillary columns.
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400 °C maximum operating temperature.
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دتکتور FPDگاز کروماتوگرافی GC
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MDL: <60 fg P/s, <3.6 pg S/s with methylparathion.
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Dynamic range: >103 S, 104 P with methylparathion
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Selectivity: 106 gS/gC, 106 gP/gC.
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Data acquisition rate: up to 200 Hz
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Standard EPC for three gases:
- Air: 0 to 130 mL/min
- H2: 0 to 250 mL/min
- Makeup gas: 0 to 130 mL/min
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Available in single- or dual wavelength versions.
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250 °C maximum operating temperature.
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Single-wavelength flame photomet- ric detector (FPD), or dual-wave- length flame photometric detector (DFPD) – a sensitive, specific detec- tor to sulfur- or phosphorus-contain- ing compounds
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رابط ASLگاز کروماتوگراف GC
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7693A ALS Interface standard. Provides power and communications for up to two 7693A automatic injec- tors, one automatic sampler tray, and one heater/mixer/bar code reader.
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7683 ALS Interface standard. Provides power and communications for up to two 7683 automatic injec- tors, one automatic sampler tray, and one bar code reader.
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Injector and tray install easily with- out the need for alignment.
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PCOCکروماتوگرافی گازی GC
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Direct injection onto cool capillary column assures quantitative sample transfer with no thermal degradation.
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Automatic liquid injection supported directly onto columns ≥0.250 mm id.
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Maximum temperature: 450 °C. Temperature programming in 3 ramps or tracking oven. Subambient control to –40 °C is optional.
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Electronic pressure control range: 0.00 to 100.00 psig.
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Optimized septum purge flow.
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Optional Solvent Vapor Exit for large volume injections.
Electronically controlled, inert, three-way valve allows solvent venting.
Includes software for method optimization.
Pre-assembled retention gaps/vent line/analytical column for easy installation.
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PPIPکروماتوگراف گازی GC
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Direct injection onto packed and wide bore capillary columns.
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Electronic flow/pressure control: 0.0 to 100 psig pressure range, 0.0 to 100.0 mL/min. Ranges are chosen to provide optimum performance over normal packed column set point ranges.
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400 °C maximum operating temperature.
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Adapters included for 1/4-inch and 1/8-inch packed columns, and 0.530-mm capillary columns.
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Manual pneumatics available.
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PTVکروماتوگراف گاز GC
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Most versatile inlet for difficult samples supporting cool injections and large volume injections in split and splitless modes.
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Temperature control: either LN2 (to –160 °C) or LCO2 (to –65 °C) cooling. Temperature programming of up to 3 ramps at up to 720 °C/min. Maximum temperature: 450 °C.
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EPC. Pressure range 0.00 to 100 psig.
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Split ratio up to 1000:1.
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Choice of Gerstel septumless head or Merlin Microseal® septum head.
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450 °C maximum operating temperature.
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Total flow setting range:
- 0 to 200 mL/min N2
- 0 to 1,000 mL/min H2 or He
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VI گاز کروماتوگرافی GC
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Very low volume (32 µL) interface suitable for gas or prevaporized samples. Recommended for use with headspace, purge and trap, or thermal desorption samplers.
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Three modes for optimized sample introduction: split (up to 100:1 split ratio), splitless, and direct.
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Optimized EPC (H2 or He carrier, 0.00 to 100 psig pressure control, 0.0 to 100 mL/min flow control).
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Silcosteel® treated flow path provides inert surface for minimum component adsorption.
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Maximum temperature: 400 °C
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ابعاد کروماتوگرافی گازی GC
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49 × 58 × 51 cm
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محدوده دمای عملیاتی کروماتوگراف گازی GC
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Ambient temperature +4 °C to 450 °C
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