GC122

* The instrument in the basic type is equipped with completed capillary analysis system and independent capillary split sampler, which includes diaphragm cleaning, split flow and auxiliary gas adjustment. It supports capillary split / split less sampler, cold on-column sampler, and 0.53mm large diameter capillary column direct sampler. It's suitable for all kinds of capillary column of various diagrams, speculations, and lengths, and made of glass or flexible silicon glass.

* The gas path of the instrument adopts high precision scale flow control valve, unloading valve and needle valve. It’s easy to adjust flow capability and has better reproducibility and stability.

* The instrument supports following injection methods:
A. Packed column: on-column sample injection, instantaneous vaporizing sample injection, gas sample injection 
B. Capillary column: split injection, split less injection, large diameter column direct injection

Newly developed computer aided temperature control system. It can manage the temperature control of six path heating areas at the same time, including column, ion chamber, thermal conductivity detector, capillary column sampler, packed column sampler auxiliary and standby, with high precision (less than ±0.1℃) and wide range (up to 400°C), and temperature overload and deviation is less than 2°C or even lower.

* The column has five-phase programmed temperature control, and the highest heating rate is up to 40℃/mi

* The system has such functions as switch-off protection, temperature limit setup, temperature scanning, rapid automatic cooling, i.e. back opening door, and etc.

* Open-end computer system can apply RS-232 interface and N-2000 chromatogram workstation to achieve single path communication control and data processing.

* Large volume full lens stainless column (350mm×280mm×300mm) can support capillary column and dual packed columns at the same time. Inner-placed heating wire structure can facilitate silicon capillary column analysis

Performance Indicators:

* Temperature control range: 7°C-400°C of room temperature (increment by 1°C)
* Temperature control objects: column, ion chamber, thermal conductivity, sampler A, sample B, auxiliary (standby) 
* Temperature programming phase: five 
* Temperature programming rate: 0.1°C-40°C／min(increment by 0.1°C)

Flame Ionization Detector (FID)
* Sensitivity：M≤1*10^-11g/s(sample: C16)
* Optimal test result: M≤5*10^-12g/s 
* Baseline noise: ≤5*10^-14A 
* Baseline drift: ≤6*10^-13A/h
* linear range: ≥10E6

Others

GC122 Special Purpose Detectors

GC122-TCD Thermal Conductivity Detector
Technology Indicators
Sensitivity: S>2500mV ml/mg
(carrier gas H2)
(sample: n-Hexadecane)
baseline noise: ≤20 μV
linear range: ≥ 104

GC122-ECD Electron Capture Detector

Detection limit: Mt ≤2 × 10 -13g/s 
( sample: n-hexane σ ,-666); 
baseline noise: ≤ 10 μA 
linear range: ≥103
Features
Ni-63 radioactive source applied, up to 350°C working temperature, very high sensitivity to halogen compound

ds.

Technology Indicators
C122-NPD Nitrogen and Phosphorous Detector
Technology Indicators
Detection limit:
nitrogen: Mt ≤ 5*10^-11 g/S;
phosphorus: Mt ≤ 5*10^-12 g/S
baseline nose : ≤ 4*10¹³A
linear range : ≥103 
GC122-FPD Flame Photometric Detector

Technology Indicators
Detection limit: 
nitrogen: Mt≤ 2*10^-11 g/S, 
phosphor: Mt ≤1*10^-10g/S 
Baseline noise: ≤10 μV
Linear range: nitrogen≥10³; sulphur≥10² 
Features
Dual flame structure, light-guide fiber signal transmission line applied, greatly reducing the high temperature affection on electric components, suitable for phosphorus, phosphor trace analysis.

Optional accessories
1. TCD
2. FPD
3. NPD
4. CDP-4A data processor
5. Software with I/O port