Gas chromatograph quotation

Indoor TVOC detection gas chromatographProduct Features:

The entire instrument has been designed with a stylish appearance, reasonable structure, modular design, and easy maintenance;

Equipped with vacuum fluorescence display technology; The interface operation is more suitable for China's national conditions;

Abandoning traditional mechanical valves and pointer pressure gauges! The use of full EPC technology for gas path control has significantly improved its automation level and overall performance. Implemented automatic protection for gas circuit faults, automatic ignition, and automatic execution of switch on/off gas circuit opening;

It can load 15 EPC and EFC control modules, which can meet the complex configuration of dual capillary injectors and three detectors;

6 independent temperature control zones;

8 independent external event controls, configurable for complex external event controls;

Intelligent rear door opening technology can achieve rapid cooling of the main box temperature, shortening the waiting time for analysis; It takes 8 minutes to reduce the temperature from 350 ℃ to 50 ℃;

● Supports Ethernet communication and enables remote data transmission;

The system is designed with an automatic sampler interface to facilitate the connection and future upgrades of the automatic sampler.

Indoor TVOC detection gas chromatographTechnical Indicators:

● Operation display: Vacuum fluorescent display screen

Temperature controlled area: 6 channels

Temperature control range: 4 ℃ to 450 ℃ above room temperature, increment: 1 ℃, accuracy: ± 0.1 ℃

● Program heating order: 16 orders

● Lift rate: 0.1-39 ℃/min (ordinary type); 0.1-80 ℃/min (high-speed type)

External events: 8 channels; 4 auxiliary control outputs

● Sample injector types: packed column injection, capillary injection, six way valve gas injection, automatic headspace injection optional

Number of detectors: 3 (multiple); (FID, TCD, ECD, FPD, NPD) optional

● Gas path control: Full EPC

EPC and EFC working modes: 2 types; Constant current mode, constant voltage mode

EPC and EFC working gases: 5 types; Nitrogen, hydrogen, air, helium, argon

EPC and EFC lift: 4th order

EPC and EFC control range:

Pressure: 0-0.6Mpa; Flow rate 0-100 sccm or 0-500 sccm (air)

EPC and EFC control accuracy: pressure 0.01Kpa; Flow rate of 0.01 sccm

Pressure sensor: degree:<± 2% of full range, reproducibility:<± 0.05kpa; Temperature coefficient:<± 0.01kpa>

Flow sensor: Degree:<± 5% of full range, reproducibility:<± 0.5% (full range), range: 0-500sccm<>

● Start injection: (manual, automatic, syringe automatic detection) optional

● Communication interface: Ethernet: IEEE802.3

Hydrogen flame ionization detector (FID)

Detection limit: Mt ≤ 3 × 10-12g/s (n-hexadecane-isooctane solution);

Baseline noise: ≤ 5 × 10-14A

Baseline drift: ≤ 1 × 10-13A/30min

● Linear range: ≥ 106

High operating temperature: ≤ 450 ℃

Thermal conductivity detector (TCD)

Sensitivity: S ≥ 3500mV • ml/mg (n-hexadecane isooctane solution) (amplification 1, 2, 4, 8 times optional)

Baseline noise: ≤ 10 μ V

Baseline drift: ≤ 30 μ v/30min

● Linear range: ≥ 104

Electron Capture Detector (ECD)

Detection limit: ≤ 1 × 10-14g/s (octachlorocyclohexane isooctane solution)

Baseline noise: ≤ 0.03mV

Baseline drift: ≤ 0.2mV/30min

● Linear range: ≥ 104

● Radioactive source: 63Ni

Flame photometric detector (FPD)

Detection limit: (S) ≤ 5 × 10-11g/s; (P) ≤ 1 × 10-12 g/s (anhydrous ethanol solution)

Baseline noise: ≤ 0.03mV

Baseline drift: ≤ 0.2mV/30min

● Linear range: ≥ 103 (S) 102 (P)

Nitrogen phosphorus detector (NPD)

Detection limit: (N) ≤ 1 × 10-13g/s; (P) ≤ 5 × 10-14g/s (azobenzene isooctane solution)

Baseline noise: ≤ 0.03mV

Baseline drift: ≤ 0.2mV/30min

● Linear range: ≥ 102 (N) 103 (P)