Configuration
Flexible configurable 1-4 channel integrated micro GC system. Modular and independently operable without pre-investments for future expansion
Column Cartridge
Column cartridges include heated detector/injector zone and a column in an oven with temperature programming. Standard available column types PDMS, MS5A, U-PLT, U-BND, QS-BND and ALOX.
Sampling
- Sample conditions: non-condensing gas of 0 to 50°C
- Sample inlet: 1.6 mm (1/16") stainless steel Valco® fitting with replaceable 5µm stainless steel filter
- Recommended sample inlet pressure/flow: 50 kPa (7 psig), 5 mL/min. Max sample inlet pressure 100 kPa (15 psig)
Optional, Software Controlled and Integrated
- 2-Stream selector (double block and bleed)
- Sample aspiration pump
Integrated Sample Injector and Detector
MEMS based injector and detector are on-chip integrated (avoiding capillary connection tubes), with a direct column/chip coupling
Sample Injector
- Heated injector up to 120 °C
- MEMS based injector without moving parts
- Injection volume: 0.2 µL to 9.0 µL,
time based software selectable
Detector
- Dual-channel MEMS micro Thermal Conductivity Detector (TCD)
- Internal flow path: 20 nL
- Inert coated filaments
Detection Limits
- WCOT columns: < 2 ppm
- PLOT columns: < 8 ppm
Limits will vary by component, sample matrix, injector type, carrier gas and interferences.
Operating Range
- Concentrations: 2 ppm to 100%
- Linear dynamic range: 106
Repeatability
- < 0.4% RSD on peak area
- < 0.2% RSD on peak retention time
WCOT columns with C1-C6 components at % level, at constant ambient 25 °C
Column Temperature Control
Isothermal
- Minimum 50 °C to 180 °C
- Temperature stability: < 0.2 °C
Temperature Programming
- Minimum 50 °C to 180 °C
- T-ramp up: 240 °C per minute
- T-ramp down: 60 °C per minute
- Temperature repeatability: <= 0.2 °C
- T-programming profile: up to 4 segments
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Carrier Gas
- All major carrier gasses helium, nitrogen and argon. Hydrogen use requires a safety device.
- Instrument inlet: 500 ± 10 kPa (72.5 ± 1.5 psig)
- Column pressure control 50 - 300 kPa, user selectable
- Carrier inlet: 1.6 mm (1/16") stainless steel Valco fitting with replaceable 5 µm stainless steel filter
Optional: different carrier gas per channel
External Input/Output
- 4x external valve control
- Analog I/O: 2x 0-5 V in
- Analog I/O: 2x 0-5 V out
- Remote start (signal input)
- Start out (signal output)
Instrument Control
- C2V-micro GC software, Windows
compatible, XP, Vista and Win 7
- Communication: USB 2.0, RS-232, optional RS-485
- Control and read-out of up to 4 micro GC channels
- Method development Sequence builder with method and stream selection
Data Handling
- Peak identification, integration
- Single run and sequence reporting
- Trend analysis, statistics
Software Option
- NGAC-Natural Gas Application Calculation C6+ acc. to ISO 6976-1995, ASTM D3599-98 and GPA 2172-09
Power
Power supply for 2 micro GC channels:
- Input: 100 - 240 Vac, 50 - 60 Hz, 200 VA
- Output: 2 x 24 Vdc at 4 A, typ. 20 W;
max. 2 x 100 W
Environmental Conditions
- Operating temperature range: 10 °C - 35 °C
- Relative humidity: 5 to 85%,
- non-condensing Altitude: to 2000 m
Dimensions/Weight per Micro GC Channel/Module
- Max. Weight: 3.5 kg / 1 kg
- Height: 15 cm / 12.5 cm
- Width 12 cm / 8.5 cm
- Depth: 12 cm / 6 cm
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