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GC128 Gas Chromatograph

GC128 Gas Chromatograph

GC128 Gas chromatograph is one of widely used analytical instruments. It has become an ideal analytical instrument for separation or analysis in various fields, such as petrochemical industry, environmental protection, food safety, medicine and health, national defense and legal inspection, and ultrapure materials. With almost 50 years experience in R & D and production of gas chromatograph, we constantly innovate to meet the needs of users in various fields. The injector and detection system of gc128 gas chromatograph adopts electronic flow / electronic pressure control system (EFC / EPC), logarithmic amplifier and automatic injector installation positioning interface, which can match various specifications of auto sampler.


Main Technical Features

● Standard PC reverse control software, built-in chromatographic workstation, achieve PC side reverse control and  touch screen synchronous bidirectional control.
● 7-inch color touch screen, and the sampler and testing system USES electronic flow/electronic pressure control system (EFC/EPC).
● Gas shortage alarm protection function; Heating control protection function (when opening the door of the column box, the motor of the column box fan and the heating system will shut down automatically).
● Split flow/split ratio can be automatically controlled to save carrier gas.
● Configure automatic sampler installation and positioning interface to match automatic sampler of various specifications.
● Humanized one-button startup function, multi-core 32-bit embedded hardware system, to ensure the reliable operation of the instrument.
● Using logarithmic amplifier, detection signal no cut-off value, good peak shape, extensible synchronous external trigger function, can be started by external signals (automatic sampler, thermal analyzer, etc.) at the same time the host and workstation.
● It has perfect system self-check function and fault automatic identification function.
● With 8 external event extension function interface, can be selected with various function control valves, and according to their own set time sequence work.

● Equipped with RS232 communication port and LAM network port, 20 groups of sample test mode memory call function.


Column Temperature Box
● Internal size: 280mm×31mm×160mm
● Operating temperature: above room temperature 4℃ ~ 420℃
● Resolution of temperature setting value: ±0.1℃
● Maximum heating rate: 60℃
● Maximum running time: 600 minutes
● Program heating: 9 steps
● Column temperature change of 1℃ per change of room temperature: < 0.01℃

● Two-channel column loss compensation


Heating Area
● Independent heating area excluding column box: 6 (2 injection ports, 2 tests)2 auxiliary heating areas

● Maximum temperature of auxiliary heating area: 400℃


Sampler
Maximum use temperature 400℃
● Pressure setting range: 0 ~ 700kPa
● Total flow setting range: 0 ~ 200mL/min

● Adapters consist of: 3 and 4 packed columns


Detector
● Hydrogen flame ionization detector (FID)
Detection limit: ≤ 3×10-12g /s (n-hexadecane)
Dynamic range: 105

RSD: 3% or less

Temperature setting: Max. 420℃


● Thermal conductivity detector (TCD)
Sensitivity: 5000mV•mL/mg (n-cetane)
Baseline noise: ≤ 0.05 mV
Baseline drift: ≤ 0.15mV / 30min
Dynamic range: 105

RSD: 3% or less


● Electronic Capture detector (ECD)
Radiation source: Ni63
Detection limit: ≤ 8×10-14g/mL (R666)
Minimum detection quantity: 80FG/s
Dynamic range: 10
3

Temperature control range: 7℃ ~ 420℃ at room temperature


● Flame photometric detector (FPD) :
Temperature setting: Maximum 350℃

Detection limit: ≤2×10-12g/s (P) 

                       ≤4×10-11 g/s (s) sample: methyl parathion

Dynamic range: P 103

Dynamic range: S 102


 


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