GC Injector Technical Specs

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Split/Splitless – Large SL/IN
The design of the most popular GC injector in view of the increasing demand for higher sensitivity and lower detection limits, has been optimized to allow the introduction of higher sample volumes.
The Large Sl/IN features an outstanding design and thanks to the patented DFC provides excellent precision in split, splitless, and pulsed injection modes of operation. DANI Split Splitless Large Injector with DFC system automatically adjusts carrier gas flow to compensate for ambient temperature and pressure, providing constant retention times at changeable conditions and enhancing system repeatability.
The post-injection carrier gas save mode is a valuable cost saving feature. Furthermore, the capacity to inject larger volumes of sample (up to 70 μL) provides higher sensitivity.
To fulfil the user’s analytical needs a series of liner types are available, including liners suitable for SPME analysis.
 
Programmable Temperature Vaporizer (PTV)
The proprietary PTV is particularly suggested when high sample integrity is requested. The sample is introduced by cold injection followed by vaporization eliminating possible sample discrimination or degradation.
The PTV achieved extremely fast heating rates of up to 1,000°C/min and rapid cool down with ambient air. Cryogenic cooling options using either CO2 or N2 are also available for specific applications.
After injection, the PTV can be programmed to decrease the split flow and save carrier gas. Moreover, the DFC adjusts the carrier gas flow providing ambient temperature and pressure compensation. In addition, the injector septum is purged by a constant flow to avoid carry-over effects.
The versatile PTV injectors is Fast GC compatible and supports up to four injection techniques: split, splitless, solvent split, or pulsed injection. Moreover, the dimensions of the standard PTV liner are ideal are ideal for direct SPME fiber introduction and desorption, taking advantage of the injectors performance characteristics.
For specific applications requiring pre-concentration or refocusing of gaseous samples, liners filled with sorbent materials are also available.
 
Packed Injector – PK
A flexible injector for affordable solutions.
The PK Injector is packed column injector for widebore and packed columns with digital flow regulator of carrier gas and septum purge.
Injector temperature is programmable up to 450°C.
Patented Digital Flow Control (DFC) operates at both constant and programmed flow and pressure, constant linear velocity mode, pulsed injection.
This PK with DFC system automatically adjusts carrier gas flow to compensate for ambient temperature and pressure, providing constant retention times changeable conditions and enhancing system repeatability.