Gas Chromatograph BK-GC900

BK-GC900 gas chromatograph is a popular, high-performance, multi-functional series of chromatographic instruments. FID, TCD and FPD detectors can be combined as needed to meet the needs of ordinary laboratories, daily production, routine detection and trace quantities analysis requirements. It can be widely used in many fields such as petroleum, chemical industry, environment, food safety, disease control, teaching and scientific research.




  • Ethernet communication interface is adopted, so that the instrument can realize long-distance data transmission through the internal LAN of the enterprise, which is convenient for the management of analysis data.
  • The unique design of the injection port solves the injection discrimination, and the dual-column compensation function not only solves the baseline drift caused by temperature programming, but also reduces the influence of background noise, which can lead to lower detection limits.
  • Unique vaporization chamber design, smaller dead volume; replacement of accessories such as injection pad, liner, polarizer, collector, nozzle can be done with one hand; packed column, capillary injector, TCD, FID detector and other main bodies The replacement only requires a wrench to be completely disassembled, and the maintenance is very convenient.
  • The intelligent rear door system has stepless variable inlet and outlet air volume, which shortens the stable balance time of the system after programmed heating/cooling.
  • The inlet can be installed up to 4 types (packed column, capillary column split/splitless injection system can be used), multiple detectors with the same or different detectors are installed, automatic/manual gas injection device can be selected, top Empty sampler, thermal desorption sampler, pyrolysis furnace sampler, methane reformer, etc.
  • The instrument is equipped with a 4.3-inch color LCD touch screen and keyboard input for user operation.
  • Adopt the dual-stable gas path design of primary pressure stabilizer valve and stabilizer valve/pressure stabilizer valve.
  • With seven temperature control devices, the temperature control accuracy is lower than ±0.1℃.
  • With double over-temperature protection and power-off protection function.
  • With linkage trigger signal acquisition system.

With fault self-check and alarm function.

Technical Parameters

Model BK-GC900
Oven Temp. Range RT+5~450℃
Temp. Accuracy ≤±0.1℃
Temp. Program 20-phase
Max. Temp. Heating Rate 40℃/min
Time Range 0-655min
Internal Size 250*270*170mm
Detector Hydrogen Flame Ionization Detector (FID) Detection limit:≤5×10-12g/s

(100ng/ul n-hexadecane-isooctane solution)

Temperature 450℃
Compatible with packed and capillary columns
Baseline drift:≤2×10-13A/30min
Baseline noise: 3×10-14A
Linear range:≥107
Thermal Conductivity Detector (TCD) Sensitivity: >

(50mg/ml toluene-benzene solution)

Temperature 400℃
Baseline drift:≤0.1mV/30min
Baseline noise: 0.03mV
Linear range:≥105(±10%)
Flame Photometric Detector (FPD) Detection limit:≤5×10-12g/s(S of 10ng/ul methyl parathion-ethanol solution)

Detection limit:≤4×10-12g/s(P of 10ng/ul methyl parathion-ethanol solution)

Linear range (S): ≥103

Linear range (P): ≥104

Temperature 350℃
Injection Method Various injection methods are available:

1) Packed column injection;

2) Packed column gasification injection;

3) Capillary split/splitless injection: back pressure valve control technology, linear split;

4) Six-way valve gas injection;

5) On-line injection: continuous injection for 24 hours without supervision

Power Supply AC220V±10%, 50/60Hz
Standard Accessory FID detector, Chromatography workstation software, Capillary sampler
Optional Accessory Sample injection system, TCD, FPD detector, Chromatographic column, Nickel catalytic converter
External Size(L*W*H) 530*502*508mm
Net Weight 42kg
Package Size (W*D*H) 750*710*720mm
Gross Weight 60kg