Gas chromatograph for detecting moisture content in wall coatings

Gas chromatograph for detecting moisture content in wall coatingsGB 18582-2020 Determination of Harmful Substances * Moisture Content in Building Wall Coatings Gas Chromatography Color Graphic Touch Screen Display: This machine adopts a 7-inch touch screen LCD display, with dynamic display of graphics. The temperature control system and self diagnostic function are completeThe instrument is equipped with pressure and flow control modules, which can automatically adjust the outlet pressure according to changes, thus overcoming the problem of traditional mass flow meters being unable to control under outlet pressure. Users only need to input the parameters of the chromatographic column, and EPC/AFC can automatically calculate and set the pre column pressure and chromatographic column flow rate. The entire instrument is automatically controlled throughout the process without manual adjustment

Transmission communication function:

Adopting 10/100 adaptive Ethernet IEEE802.3 communication interface, with fast transmission speed.

Chromatographic column: 25 * 0.53 * 10.00Peak order:1. Isopropanol (internal standard) 2. Water 3. Solvent

Gas chromatograph for detecting moisture content in wall coatings

Technical specifications of detector:

Hydrogen flame ionization detector (FID)
Detection limit: Mt ≤ 5 × 10-12g/s (n-hexadecane-isooctane solution);
Noise: ≤ 5 × 10-14A
Drift: ≤ 1 × 10-13A/30min
● Linear range: ≥ 106

Thermal conductivity detector (TCD):
Sensitivity: S ≥ 5000mV • ml/mg (conventional)

8000mV • ml/mg (highly sensitive) (benzene toluene solution)
Noise: ≤ 10 μ V
Baseline drift: ≤ 30 μ V/30min
● Linear range: ≥ 104