gc

Gas Chromatography

Permeation Calibration System

Permeation Calibration System gc

The calibration gas generator from dot-red uses the technology of permeation. The permeation tubes are Teflon tubes filled with a specific component in a liquid-vapor phase. The permeation rate of the tube is a direct function of the temperature. With the dot-red calibration gas generator, a large scale of concentrations can be reached by changing the temperature or by modifying the dilution air flow. The device automatically calculates the flow in dependence of the requested final gas concentration.
External Ultra Zero Air generator is required to dilute what is going out of the permeation oven.


2mL Snap cap vials and caps

2mL Snap cap vials and caps gc

2mL Snap Cap Autosampler Vials

Snap/crimp top vials
Large opening vials with 11mm snap/crimp neck finish
1.8mL volume, standard size of 12×32mm diameter x height
Clear vials made from Type I Class A glass (33 expansion)
Amber vials made from Type I Class B glass (for light sensitive product)
Accepts both crimp and snap caps (requires …more


2mL Screw thread vials and caps

2mL Screw thread vials and caps gc

2mL Screw Cap Autosampler Vials

Large neck opening vials with 9mm neck finish
1.8mL volume, standard size of 12×32mm diameter x height
Excellent for long term sample storage
Clear vials made from Type I Class A glass (33 expansion)
Amber vials made from Type I Class B glass (for light sensitive product)
Sold in packs of …more


Head Space Vials

Head Space Vials gc

6mL, 10mL and 20mL glass vials suitable for GC Headspace application.
20mm crimp cap neck finish
Clear vials manufactured in Type I Class A glass (33 Expansion)
Pressure release seals offer a safety feature where the scored aluminium seal will open if the internal pressure reached 3.0 bar.
Sold in packs of 100
Manufactured to precise standards
100% guaranteed
Available in clear …more


Combined Pure Air / H2 Gas Generator

Combined Pure Air / H2 Gas Generator gc

The Pure Air / H2 is a combined Hydrogen and Pure Air Generator. The Hydrogen Generator employs the newest PEM membrane technology available for electrolytic production of pure hydrogen gas. Only pure water, either distilled or deionized, is required to provide trouble free long-term operation. The no maintenance static dryer has replaced the Molecular Sieve …more


Standard Chromatography Vials

Standard Chromatography Vials gc

With a focus on HPLC / GC Autosampler vials, high quality, low cost are the “•red approved” chromaography vials.
GC vials and HPLC vials suitable for autosamplers requiring 1.5ml vials, 1.8ml vials and 2ml vials.
Vials are:

produced from high quality Schott or Alcan tubing only
in Type I Class A (33 Expansion) glass for clear vials …more


Ultra Zero Air

Ultra Zero Air gc

The dot-red Ultra Pure Air Generator produces in large quantities laboratory grade purified air for the most accurate and convenient calibration of testing equipment. Designed with safety and convenience in mind, this system will generate purified air eliminating the need for inconvenient high-pressure gas cylinders. The Ultra Pure Air Generator will remove CO to less …more


Zero Air HC Free

Zero Air HC Free gc

The dot-red Pure Air Generator series produces laboratory grade purified air (Zero Air) in large quantities for the most accurate and convenient FID (Flame Ionization Detectors) and other detectors like FPD.
Designed with safety and convenience in mind, this system will generate HC (Hydrocarbon) free air eliminating the need for inconvenient high-pressure gas cylinders. The Pure …more


Compressed Air

Compressed Air gc

Having compressed Air in a laboratory is a must, but in lot of them, no oil free compressed air is available. The Compressed Air Station has been designed to provide from 20 L/min up to 120 NL/min of oil free and pre-dried compressed Air at up to 6 bar.
The Compressed Air Station can be used …more


High Capacity and Purity Nitrogen Gas Generators

High Capacity and Purity Nitrogen Gas Generators gc

The N2-Sirocco model of Nitrogen Gas Generator have been designed for applications requesting larger flow and highest purity of Nitrogen. They use the  Double Stage Pressure Swing Adsorption (DS-PSA) principle to produce high purity Nitrogen which eliminates the need for costly, inconvenient high pressure cylinders in laboratories. N2-Sirocco models include internal oil free compressors and …more