Riddle 2: Why do analytical chemists love to burn holiday candles?

[GeorgeTFS]

Welcome to day 2 of the 12-day Riddle Challenge! Get a festive profile badge just for participating. Answer all 12  and be eligible for a holiday ornament (while supplies last). Good luck!

Today's riddle is Why do analytical chemists love to burn holiday candles? 

Check back here tomorrow for the answer.

  Answer to Riddle 1 : What do Santa Claus and an Orbitrap have in common?

Spoiler

They don’t make a lot of noise when completing their work!

Learn more about the Orbitrap and unwrap this post:
The New Orbitrap Exploris MX Mass Detector Debuts at ASMS 2021 (analyteguru.com)

[Aristide]

They love to observe and conduct chemical reactions (combustion of wax with oxygen)

[Molly_I2]

@DanielEttlin - We'd love to see you try all 12 😃 I know you can get this one!

[DanielEttlin]

Bright light - Bright people