Instrument configuration

GS-MS：6890N+5973

Pre processing equipment:Steady DeYan AutoTDS VPro Fully Automatic Thermal Desorption Instrument

Adsorption tube activatorPractical DeYan BTH-24 Activation Instrument

Adsorption tube:TenaxTAAdsorption tube

AutoTDS-VProType fully automatic thermal analyzer

AutoTDS-VProThe Type fully automatic thermal desorption instrument is a 24 bit low-temperature secondary fully automatic thermal desorption instrument with electronic flow control (EPC), which has a diversion function and can store multiple operating methods. It can automatically complete 24 adsorption tubes.

BTH-24Type Activation Instrument

BTH-24The Type Activation Instrument has a simple appearance, built-in flow sensor, independent temperature control system, and 24 adsorption tubes divided into two groups for independent control. It is easy to operate, flexible and versatile, and can meet various needs.

Instrument conditions

GCMScondition

Injection port: Temperature: 200 ℃, Pressure: 4.77Psi, Split ratio: 5:1, Split flow rate: 4ml/min

Chromatography column: AB-5MS, 30m * 0.25mm * 0.25um, column flow rate 0.8ml/min

Program heating up:

Thermal desorption conditions

Test results

22Total ion chromatogram of TVOC (100ng):

1-N-hexane, ethyl acetate, 3-3 chloromethane, 4-phenyl, 5-carbon tetrachloride, 6-cyclohexane, 7-n-heptane, 8-trichloroethylene, 9-cyclohexane, 10 toluene, 11 octane, 12 tetrachloroethylene, 13 butyl acetate, 14 chlorobenzene, 15 ethylbenzene, 16 para, meta xylene, 17 styrene, 18 o-xylene, 19-n-hexane, 20-1,4-dichlorobenzene, 21-n-hexadecane

22The peak of the target component is normal. Tenax adsorption tubes with component contents of 25ng, 50ng, 100ng, 200ng, 500ng, and 1000ng were prepared using a preparer. The correlation coefficients R ² of each component were all greater than 0.999, meeting the standard requirements