Translate Your GC Methods From Helium To Hydrogen

……Reliably and Safely

Helium was once plentiful and cheap. Supplies are going down and the cost keeps going up

1. Operate GCs at lower head pressures because H2 is about half as viscous as He

2. H2 is about as efficient as He

3. H2 can be made by electrolysis of H2O – generate your own!

Convert GCs from helium to hydrogen carrier gas:

Two considerations when making this change : 1. Your chromatogram will

change if the instrument settings are not optimized for H2

2. Hydrogen is explosive!

1. Adjustments to instrument settings are needed to accommodate the different separation of H2

2. New data will not match historical data if the chromatograms cannot

Consideration #1: He ≠ H2

be reproduced

Working out new instrument settings is time-consuming (= expensive)

Consideration #2: Explosion risk using hydrogen as the carrier gas is worrisome for lab managers, lab owners, and GC operators

Help is on the way!

METHOD TRANSLATOR

DVLS3 Simply, Smart Sensor

EMT will reliably translate your method and reproduce your chromatogram

DVLS3 will constantly monitor your GC oven for H2

We have what you need!

Let’s take a look at

METHOD TRANSLATOR

…and translate a method from helium

to hydrogen

To start the translation, set the column parameters for the new method to be the same as the original method

The original method settings are entered in the left column, new column dimensions and carrier gas are entered in the right column.

Select H2 instead of helium

EMT translates from He to H2: At equal head pressure peak height ratios change

Twice as fast but different chromatogram

EMT translates from He to H2: At optimum there is 24% speed gain

With lower head pressure the H2 and He chromatograms overlay

By adjusting the head pressure and temperature ramp as per EMT’s recommendation, you should be able to duplicate the chromatogram you were getting with helium.

Now let’s tackle that safety issue

DVLS3 Simply, Smart Sensor

The new DVLS3 Sensor constantly monitors the H2 concentration in the GC oven

It automatically switches to an inert gas if dangerous H2 levels are detected

The DVLS3 is easy to install and is compatible with all GCs

It supports up to 4 sensors: •Hydrogen •Hydrogen as Leak Detector •Temperature •Level (liquid) weight

The Gas Sensor is integrated in the GC oven. The carrier gas switch and LCD display are in an external controller.

Select from multiple alarm methods:

•Optical

•Acoustic

•SMS text message

There you have it!

DVLS3 Simply, Smart Sensor METHOD

TRANSLATOR

A reliable and safe transition to hydrogen carrier gas using:

&

METHOD TRANSLATOR

Check our web site for more information about

DVLS3 Simply, Smart Sensor

http://www.envantage.com/analytical-software/envantage-analytical-software/utility-software-products/envantage-method-translator/

http://www.envantage.com/bundled-application-solutions/system-enhancements/dvls3-simply-smart-hydrogen-sensor/

www.envantage.com @Envantage