Blog | HEL |

H.E.L has a long history of solving complex challenges for customers.
The information on the H.E.L blog will cover the latest news on chemistry, chemical engineering, and biotechnology applications as well as other non- scientific news, related to the world at large.

Exploring the pitfalls of Flow Chemistry – industry and academic insight

Recently, H.E.L invited four specialist flow chemistry practitioners to speak at an online symposium on the topic. After the speakers had shared their research and experiences and answered questions from delegates, we took the opportunity to ask some questions of our own. Here, our speakers share their own ‘pain points’ of working in flow.


Getting the best from your vent sizing experiments

Dr. Roderick McIntosh shares his top tips for making sure that vent sizing experiments at the laboratory scale give you the information needed at the production scale….. read More

“Believe in yourself!” Reflections from women in science, in 2021

To mark the UN’s International Women and Girls in Science Day, some of H.E.L’s women in science share their insights of working in science and their own career experiences…. read More

H.E.L Low pressure bioreactorsInnovative Bioreactor Publications

We’ve been continuing our literature research, this time focusing on some publications that discuss interesting bioreactor applications …….read more

H.E.L BTC (Battery Testing Calorimeter) 500 imageBest Publications on Battery Testing to Read Now – Part 2

In our second part on battery testing (2019/2020), we highlight the unique applications that our customers use on our equipment. Its always great to see this work get the recognition it deserves from its peers …….read more

High Phi-Factor versus Low Phi-Factor Testing

A question that often crops up is what testing is best? Should we perform high Phi-factor or low Phi-factor tests? Is one better than the other?
As is often the case, there is no straightforward answer and it will depend on the desired …….read more


Best Publications on Battery Testing to Read Now – Part 1

We’ve been doing some literature research and have found a few interesting recent (2019/2020)
publications looking at battery testing. We’ve shared four of the most relevant ones here and…… more

Tandem Gas AnalysersFermentation process development using off-gas analysis of CO2 and O2

Real-time, on-line analysis of exhaust CO2 and O2 from your fermentation process provide a wealth of information to help you understand and control your fermentation process.
These are presented two case studies of the use of off the Tandem gas analyzer in fermentation process development.
read more


Test pre-preparation–Why you should evaluate your sample before testingTest pre-preparation–Why you should evaluate your sample before testing

After my previous post regarding loading a test cell, I am reminded of the time I had to manually inject caustic soda (sodium hydroxide – NaOH) into hydrogen peroxide (H2O2). I charged the peroxide into the Phi-TEC II test cell and then started a “closed-cell” test. This style of testing allows for heating and temperature control to start before the two reagents are mixed. When the test conditions were ready, I carefully put a……….read more

, Qing (Steven) Chen took on leadership for the H.E.L business in China. Then, in June, Mert Sahin took on a similar role for our North American business.Thoughts from H.E.L North America & China

Over spring and summer 2020, two leaders for major geographies joined H.E.L. In March, Qing (Steven) Chen  took on leadership for the H.E.L business in China. Then, in June, Mert Sahin took on a similar role for our North American business. Now that they’ve had some opportunity to settle into their roles, our C.M.O Paul Orange caught up with them and got their thoughts on……….read more

feature image for blog artical on Problems With Your Sample, Solutions to charging low Phi-factor test cellsProblems With Your Sample? Solutions to charging low Phi-factor test cells

So, we’ve all been there. You have a new sample that you need to test on a Phi-TEC II, and you need to get the sample into the test cell. But wait a minute, here we have a solid sample, and a 1/8” feed line. Or perhaps you have a reaction mix that starts reacting immediately.
What do you do? How do you get around this?……read more