Generate your gas standard from a liquid
Some analytical fields need gas standards which are not easily commercially available in gas cylinders.
AlyTech has developed LiqMix specifically for those applications when you need to produce a standard gas from a liquid or liquid mixture.
The system vaporizes in precisely controlled manner a liquid into a gas stream generating a gas standard at multiple concentrations with good accuracy, high repeatability and full traceability.
Your benefits using LiqMix :
- Creating gas phase standards from a gas, liquid or liquid cocktail mixture
- Wide range of concentrations from % down to ppm
- Dedicated LiqMix software does all calculations and devices control
- Robust design, simple in use, fully automated operation
- Heated lines prevent condensation and maintain the vapors in gas phase
Operation principle of LiqMix is based on the proven technology of Mass Flow Controllers (MFC) for gases and liquids.
MFCs are perfectly factory calibrated by Alytech and traceable to NIST. A liquid is delivered to a vaporiser with precise control by a Coriolis MFC that can handle any type of liquid or liquid mixture and not dependent on ambient conditions (pressure, temperature density, conductivity and viscosity). The vaporiser is regulated at user-defined temperature. Liquid vapors are diluted by a carrier gas and future transferred to a mixing chamber where it can be mixed or diluted again by up to 4 optional gas channels. This allows generation of complex mixtures at multiple concentrations in a wide range.
All interconnections and outlet line are heated in order to maintain the vapors in gas phase avoiding re-condensation till the delivery point.
LiqMix is automated, cost effective way for on-site generation of gas standards for chemicals that are not commercially available in cylinders, like unstable, reactive compounds in complex multicomponent mixtures. LiqMix is a simple and reliable way to perform multi-point calibrations, linearity and hysteresis checks, LOQ / LOD validation with gas standards such as BTEX, other hydrocarbons mix, siloxanes, ethanol and phenol, and others.
Biogas : generation of siloxane standards (issue of silicone containing contaminants)
Air Regeneration Systems : ethanol and phenol standards to test efficiency of charcoal filters
Humidity sensors: generation of moisture standards (sensor validation)
Toxic gas detectors: Gas detectors calibration, and alarm level checks
Number of gas channels: 1 Liquid and up to 5 gas channels
Number of liquid channels: 1
Liquid MFC Coriolis technology, from 5g/h to 200 g/h FS
Liquids: Pure liquid or a liquid mixture (ex.: water, organic solvents) without precipitation, polymerization or salt formation (for specifics, please contact us)
Liquid flask (optional) should be pressurized by inert gas
Number of gas channels: up to 5
Inlet Gas pressure: stable and regulated within 3-8 bar
Gas compatibility: pure gases, concentrated gas mixtures, most of aggressive and reactive gases (for specifics, contact us)
Dilution ratio of the initial concentration: up to 1:10000
Accuracy of output flow: less than 2% all over the scale
Heated output line standard length 2 m
Outlet Gas Pressure: atmospheric, higher pressure possible
Connectors: Swagelok 1/8”, other on request
Software: required PC with Windows 7 or higher, Ethernet port communication
Operation temperature: 10 – 50°C
Power supply: 90-260Vac, 1,5-4A, 50-60Hz
Dimensions: L x W x H 42x22x46 cm
Weight: approx. 25 kg (depends on configuration)
A fully inert version
compatible with most aggressive gases and active compounds like sulfurs, H2S, ammonia, VOC
A liquid canister
1L stainless steel flask with support. Includes tubing with a tap and connection fittings