GC122 Gas Chromatograph

FEATURES

Dual FID detectors, optional GCl22-TCD, GCl22-ECD, GCl22-NPD, GCl22-FPD, converter, gas sample inlet
valve, etc.
Dual packed columns, dual samplers and dual gas path system structure, which can effectively restrain baseline fluctuation and drift in real time, suitable for temperature programming analysis.
Can work with 3 types of detectors at the same time. With different detector combination in different application, the instrument can support detectors working in either cascade or paralleled connection.
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:
Packed column: on-column sample injection, instantaneous vaporizing sample injection, gas sample injection
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℃), and temperature overload and deviation is less than 2℃or even lower.
The column has five-phase programmed temperature control, and the highest heating rate is up to 40℃/min.
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℃-400℃of room
temperature (increment by 1℃)
Temperature control objects: column, ion chamber, thermal conductivity, sampler A, sample B,
auxiliary (standby)
Temperature programming phase: five
Temperature programming rate: 0.1℃-40℃/
min(increment by 0.1℃)
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

FEATURES
Applying rhenium tungsten filament, constant
current power supply, different magnifying circuit,
and mini-type conductivity
GC122-ECD Electron Capture Detector
Technology Indicators
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℃
working temperature, very high sensitivity to
halogen compounds.
GC122-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
Features

High stability rubidium applied, suitable for nitrogen
phosphorus compound residue analysis.
GC122-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
Features
High stability rubidium applied, suitable for nitrogen
phosphorus compound residue analysis.
GC122-FPD Flame Photometric Detector
Technology Indicators
Detection limit:
nitrogen: Mt≤ 2x10-11 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
TCD
FPD
NPD
N2000 Software with I/O port
OVERALL DIMENSION & WEIGHT
Shipping package dimension: 1000*720*870mm
Net Weight: 100kg
Gross Weight: 120kg