![]() ![]() Temperature range with cryogen: -99☌ to 450☌ ![]() P n e u m a t i c s optimized for injector system type. Three time-programmable analog O/P: 0 – 1V In addition, the 3380 GC can be automated with the full line of Varian autosamplers.įull Ethernet communications using industry - s t a n d a rd pro t o c o l s Optional gas sampling valve or liquid sampling valve can be added to the configuration. The 3380 GC is available in twelve configurations, all with manual pneumatics: It is fully functional as a standalone GC or controlled through the Varian Star Workstation or the Galaxie Chromatography Data System. It uses the same high performance injector and detector hardware as for the CP-3800 GC. The 3380 GC is a single or dual channel, fixed configuration GC based on the revolutionary CP-3800 GC with an affordable price. When a common SPME straight liner is used, large outer diameter (o.d.) pre-column will help to achieve high sample transfer efficiency. ![]() It was found that the use of a direct injection (DI) liner and program temperature vaporizing provides high sample transfer efficiencies, for both liquid injection and SPME fiber injection. ![]() Varian Star Chromatography Workstation Manual High School 2 An equation was proposed to estimate the sample loss rate for SPME injection. The sample transfer efficiency for SPME fiber injection was affected by the cross-sectional area of the space between the column and the liner, the carrier gas flow rate, and the length of the column inside the liner. The results showed that the sample transfer efficiency for liquid injection was affected by several factors, such as the dimensions of the liner, the presence of the wool, and the temperature of the injector. Sample transfer efficiencies for liquid injection and SPME fiber injection were studied in this paper. Varian Star Chromatography Workstation Manual High School Alumni Association Varian Star Chromatography Workstation Manual High School Denver The feasibility of this calibration method relies on the assumption that sample transfer efficiencies are the same for both the liquid injection and the SPME fiber injection. Calibration of SPME by the injection of liquid standard solution is a common method for SPME quantitative analysis by gas chromatography. ![]()
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