Agilent 6890N Gas Chromatograph, 28 × 31 × 16 cm, HP Agilent (CAT#: STEM-AIAEPO-0164-LGZ)

The Agilent 6890N Series Network Gas Chromatographs are configured to end user specifications with a choice of detectors, injectors and data systems. Refurbished and tested to specification by manufacturer-trained engineers. Optional installation.

Agilent 6890N System Features

Dual channel design, supports two inlets and two detectors.
The full range of digital data output enables minimum and maximum peaks to be quantified in a single run.
Full EPC available for all imports and detectors.
Control range and resolution are optimized for a specific portal or detector module.
Capillary column EPC offers four column flow control modes: constant pressure, ramp pressure (3 ramps), constant flow or ramp flow (3 ramps).
Calculates the bar average linear velocity.
Atmospheric pressure and temperature compensation are standard, so the results will not change even if the laboratory environment changes.
Automatic liquid sampling is fully integrated into the host control.
Setpoint and automation control can be done via a local keypad or via a network data system.
Clock programming can be initiated from the front panel to initiate events (on/off, method starts, etc.) at future dates and times.
Runtime deviation logs are created for each analysis to ensure all method parameters are implemented and maintained.
Displays all GC and Automatic Liquid Sampler (ALS) setpoints on the GC or data system.
Agilent supports Open Connectivity, providing communication protocols for other vendor software such as ChromPerfect and Clarity.

Configuration Options

Wide selection of entrances
split/unsplit (S/SL) capillaries
Package purge sprue
Cooling On Column (COC)
Cooling column with solvent vapor outlet (COC-SVE)
Programmable Temperature Vaporization (PTV)
Volatile Interface (VI)
Cooling Injection System (CIS)
Temperature Programmable Column Front Infinitely Configurable:
Agilent 7683 Automatic Liquid Sampler
Agilent G1888 Headspace Sampler
Agilent 7694E Headspace Sampler
scavenge and trap
Gas and Liquid Sampling Valves
Ambient Air Samplers and Preconcentrators
Thermal desorption tower
Pyrolyzer

No sample preparation? Headspace sampling can eliminate sample preparation by automatically introducing volatile components (from virtually any matrix) directly into the GC. The low volume, highly inert volatile interface optimizes headspace GC analysis and prevents sample loss or degradation. Agilent Headspace Instrument Control is fully integrated into the software. The Agilent 7683 Automatic Liquid Sampler has been set up with the 6890N Network GC System for quick and easy installation. Single or dual syringe, with 8-sample turret or 100-vial sample tray, allowing unattended operation. With the 11-bottle turret with tray and solvent saver mode, you have enough solvent to run unattended 8 times longer than before.

Condition: certified pre-owned
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)
Operating temperature range: Ambient temperature +4 °C to 450 °C
Temperature Ramps: Supports 6 oven ramps with 7 plateaus. Negative ramps are allowed
Maximum achievable temperature ramp rate: 120 °C/min (120 V units are limited to 75 °C/min
Maximum run time: 999.99 min (16.7 h)
Valve Support: Support for up to 8 valves.
– Valves 1-4, 12 V DC 13 watt in a heated valve box
– Valves 5-6, 24 V DC 100 mA unheated, for low power valve applications
– Valves 7–8, externally powered as a remote event from separate contact closure
Independent heated zones: Not including oven: Six (two inlets, two detectors, and two auxiliary)
Electronic Pneumatics Control (EPC):
• Atmospheric pressure compensation sensor to compensate for altitude and ambient temperature variation is standard.
• Pressure may be adjusted by increments of 0.01 psi.
• Pressure/Flow ramps: Three maximum.
• Carrier and makeup gas settings selectable for He, H2, N2, and argon/methane.
• Flow or pressure setpoints for each inlet or detector parameter with on both Agilent 6890N and the ChemStations.
• Automated carrier has constant flow, when capillary column dimensions are entered into the 6890.
• Split/Splitless, PTV inlets have flow sensors for the control of split ratio.
• Inlet modules Pressure sensors: Accuracy:
<±2% full scale, Repeatability:
<±0.05 psi, Temperature coefficient
: <±0.01 psi/°C, Drift:
<±0.1 psi/6 months.
Flow sensors: Accuracy: <±5%
depending on carrier gas,
Repeatability: <±0.35% of setpoint,
Temperature coefficient :
<±0.20 mL/min normalized temperature
and pressure (NTP)*
per °C for He or H2;
<±0.05 mL/min NTP per °C for
N2 or Ar/CH4.
• Detector modules
Accuracy: <±3 mL/min NTP or
7% of setpoint, Repeatability:
<±0.35% of setpoint, Temperature
coefficient: <±0.20 mL/min NTP
per °C
Inlets:
• Maximum of two inlets installed.
• 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)
S/SL:
• Suitable for all capillary columns.
• Split ratios up to 7500:1 to avoid column overload.
• Splitless mode for trace analysis. Pressure-pulsed splitless is
easily accessible for best performance.
• Maximum temperature: 400 °C.
• 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 <0.200 mm diameter. Pressure set point resolution is 0.01 psig. Total flow control/ sensing up to
1000 mL/min (He, H2).
• Gas saver mode to reduce gas consumption without compromising performance.
• Optimized septum purge flow to eliminate “ghost” peaks.
• Total flow setting range:
0 to 200 mL/min N2
0 to 1,000 mL/min H2 or He
FID Detector:
• Minimum detectable level (for tridecane): <1.8 pg C/s.
• Linear dynamic range: >107 (±10%). Digital data makes entire range available without range changes.
• Data rates up to 200 Hz accommodate peaks as narrow as 25 ms at half height.
• 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
• Available in two versions: capillary column optimized or adaptable for either packed or capillary columns.
• Flame out detection and automatic reignition.
• Grounded jet.
• 450 °C maximum operating temperature.
TCD Detector:
• Minimum detectable level: 400 pg propane/mL with He carrier. (This value may be affected by laboratory
environment)
• Linear dynamic range: >105 ±5%.
• Unique fluidic switching design provides rapid stabilization from turn-on, low-drift performance.
• Signal polarity can be run programmed for components having higher thermal conductivity than the carrier gas.
• Maximum temperature: 400 °C.
• Standard EPC for 2 gases (He, H2, Ar, or N2 – matched to carrier gas type).
• Makeup gas: 0 to 12 mL/min.
• Reference gas: 0 to 100 mL/min
Micro-ECD Detector:
• Minimum detectable level: <6 fg/mL lindane.
• Proprietary signal linearization Linear dynamic range: >5 × 104 with lindane.
• Data acquisition rate: up to 50 Hz.
• Uses ß emission of <15 mCi 63Ni as the electron source.
• Unique micro-cell design minimizes contamination and optimizes sensitivity.
• 400 °C maximum operating temperature.
• Standard EPC makeup gas types: argon/5% methane or nitrogen; 0 to 150 mL/min.
• Dynamic range: >5 × 105 with lindane

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