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Gas chromatograph GC-8890
Main functional features Network control, anti-control, EPC control with touch screen Chinese and English display Built-in 10/100 Mbps Ethernet communication technology with auto-negotiation, allowing devices to be connected into a local network; high uh...
Description
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Main functional features
Network control, anti-control, EPC control with touch screen Display in Chinese and English
Built-in 10/100 Mbit/s Ethernet communication technology with automatic negotiation, allowing you to connect devices into a local network; high efficiency of data exchange; Provides data transmission over a remote distance and remote control of the device.
1. Reliable and full-featured reverse control technology (reverse control): all chromatograph parameters can be set remotely via a computer, as well as chromatogram processing.
2. Control via touch screen with a convenient and visual interface.
3. Supports various sample injection methods: auto sampler, headspace auto sampler (Headspace), pyrolytic sampler, etc.; Thanks to network control, 24-hour automatic operation in online analysis mode is possible without the presence of an operator.
4. New technology for automatic pressure and flow control (EPC, EFC) with digital control of all gas parameters (flow and pressure) has been applied. Operating modes: constant flow, constant pressure, split mode. 4-stage pressure programming is supported.
5. Fast heating and cooling design, allowing heating rates up to 80°C/min; when using liquid nitrogen, a wide temperature range is maintained from –80 °C to +450 °C.
6. Automatic ignition and automatic detection of flame extinction (PRC patent No. ZL2012 2 0285854.5).
7. The presence of 4 external event channels, support for multi-valve switching, which allows the implementation of multi-dimensional chromatographic systems.
8. Possibility of simultaneous use of FID and TCD, as well as working with two TCDs or two FIDs simultaneously.
9. The use of the latest digital integrated circuits and technologies ensures high accuracy of device control (temperature stability up to 0.05 °C) and operational reliability.
10. Patented cooling system with rear door, ensuring operation in a mode close to room temperature (PRC patent No. ZL2012 2 0286920.0).
11. Automatic data collection function when entering a sample (PRC patent No. ZL2012 2 0285852.6).
Main technical characteristics
1.Temperature control
Number of temperature zones: 8
Temperature control range: from room +4 °C to 400 °C, step 0.1 °C, accuracy ±0.1 °C
Number of temperature programming steps: 16
Temperature programming speed: from 0.1 to 39 °C/min (standard version); from 0.1 to 80 °C/min (high-speed version)
2. Pressure and flow control
Pressure and flow measurement: with dial gauges or electronic pressure and flow measurement system
Fully electronic system for measuring pressure and gas flow: maximum number of measuring channels in one module is 16
EPC/EFC operating modes: 3 modes (constant flow, constant pressure, split flow mode)
Gases supported by EPC/EFC: 4 types (nitrogen, hydrogen, air, helium)
EPC/EFC programming: 4 steps
EPC/EFC control range: pressure 0～0.6Mpa; flow 0～100sccm or 0～500sccm (for air)
EPC/EFC control precision: pressure 0.01Kpa; flow rate 0.01sccm(mI/min)
3.Technical characteristics of detectors
Flame Ionization Detector (FID)
Detection limit: Mt≤2×10-12g/s (for n-hexadecane)
Noise: ≤2×10-14A
Drift: ≤1×10-13A/30min
Linear range: ≥ 10⁷
4.Thermal conductivity detector (TCD)
Sensitivity: S≥12000mv.ml/mg (by n-hexadecane)
Noise: Rn≤20uv
Zero line drift: Rd≤100uv/30min
5. Electron Capture Detector (ECD)
Sensitivity: M≤2×10-14g/mi(r-666)
Maximum operating temperature: 350 °C
Noise: Rn≤20uv
Zero line drift: Rd≤100uv/30min
Linear range: > 10⁴
Radioactive source: ⁶³Ni
6.Flame photometric detector (FPD)
Sensitivity: Mp≤1×10-12g/sec(1605),Ms≤1×10-12g/sec (thiophene)
Noise: Rn≤4×10-14A(40uv)
Zero line drift: Rd≤100uv/30min
Linear range: 10⁵
Thermionic (nitrogen-phosphorus) detector (NPD)
7.Sensitivity: Mf≤5×10-12g/s(azobenzene)
Mf≤5×10-13g/s (malathion)
Noise: Rn≤2×10-12A
Zero line drift: ≤3×10-13A/30min
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