in mass spectrometry, an ion funnel is a device used to focus a beam of ions using a series of stacked ring electrodes with decreasing inner diameter. A combined radio frequency and fixed electrical potential is applied to the grids. In electrospray ionization-mass spectrometry (ESI-MS), ions are created at atmospheric pressure, but are analyzed at subsequently lower pressures. Ions can be lost while they are shuttled from areas of higher to lower pressure due to the transmission process caused by a phenomenon called joule expansion or “free-jet expansion.” These ion clouds expand outward, which limits the amount of ions that reach the detector, so fewer ions are analyzed. The ion funnel refocuses and transmits ions efficiently from those areas of high to low pressure. (Wikipedia).
How to Make/Build a Lifter or Ionocraft
A step-by-step guide to making a lifter/ionocraft, a small, very lightweight, triangular ion wind propelled device powered with a high voltage and substantial current power supply. This uses an aluminum foil skirt for the bottom electrode, a 30 gauge (30 AWG) bare wire for the top electrod
From playlist Ion Propulsion/Ionocraft/Lifters
Periodic Trends: Ionization Energy Explained With Exceptions | Study Chemistry With Us
I'll go over all of these concepts: - What the ionization energy periodic trend is - What the definition of ionization energy is - How to arrange atoms in increasing order of first ionization energy - All exceptions to the ionization energy trend - How to write the chemical equation for th
From playlist Cramming For a Chemistry Final? Watch This!
Ionization Energy - Periodic Trends
Watch more videos on http://www.brightstorm.com/science/chemistry SUBSCRIBE FOR All OUR VIDEOS! https://www.youtube.com/subscription_center?add_user=brightstorm2 VISIT BRIGHTSTORM.com FOR TONS OF VIDEO TUTORIALS AND OTHER FEATURES! http://www.brightstorm.com/ LET'S CONNECT! Facebook ► h
From playlist Chemistry
This chemistry video tutorial explains what exactly is an ion. An ion is a particle with unequal numbers of electrons and protons. Atoms have equal numbers of protons and electrons and are therefore electrically neutral. Ions with more protons than electrons are positively charged and a
From playlist New AP & General Chemistry Video Playlist
IONIC BOND - a quick definition
A quick definition of an ionic bond. Chem Fairy: Louise McCartney Director: Michael Harrison Written and Produced by Kimberly Hatch Harrison ♦♦♦♦♦♦♦♦♦♦ Ways to support our channel: ► Join our Patreon : https://www.patreon.com/socratica ► Make a one-time PayPal donation: https://www.p
From playlist Chemistry glossary
A quick definition of ions. Chem Fairy: Louise McCartney Director: Michael Harrison Written and Produced by Kimberly Hatch Harrison ♦♦♦♦♦♦♦♦♦♦ Ways to support our channel: ► Join our Patreon : https://www.patreon.com/socratica ► Make a one-time PayPal donation: https://www.paypal.me/
From playlist Chemistry glossary
In an ionic bond, two ions are held together by electrostatic force. These two atoms are trying to attain full valence shells of eight electrons. One atom has too many electrons and another has too few so one atom donates electrons and the other accepts them. The donor atom forms a cation,
From playlist Chemistry
NASA’s Evolutionary Xenon Thruster (NEXT) | Gridded Ion Thruster
A gridded ion thruster uses electrical energy to create, accelerate and neutralize positively charged ions to generate thrust. The discharge chamber is responsible for the creation of ions when neutral atoms and electrons collide while the magnetic field containing the electrons increases
From playlist Other cool videos
Periodic Table Trends: Ionization Energy
What an ion is. Using the periodic table to understand how difficult it is to ionize an atom. More free lessons at: http://www.khanacademy.org/video?v=ywqg9PorTAw
From playlist Chemistry
Making Rose Fragrance from Lemongrass
Check out The Column and sign up for their free newsletter! https://www.thecolumn.co/?utm_source=cm003 Support my channel with patreon: https://www.patreon.com/chemiolis Used methods: http://orgsyn.org/demo.aspx?prep=CV3P0747 https://sci-hub.se/https://pubs.acs.org/doi/abs/10.1021/jo0
From playlist Chemistry with Natural Materials
Making Metallocenes - Organometallic Sandwiches
Sign up for The Column, a free email newsletter about the chemical industry! https://www.thecolumn.co/?utm_source=chemiolis001 In this video I am doing syntheses to make Ferrocene, Stannocene, Cobaltocene and Manganocene. Ferrocene and Stannocene are relatively simple to produce, but both
From playlist Interesting Molecular Structure
Separating Components of a Mixture by Extraction
When we perform a chemical reaction, we are usually trying to get a particular molecule. But when we are done with the reaction, there will probably be a bunch of different stuff in the reaction flask. How do we get just the thing we want and not the other stuff? It's actually pretty invol
From playlist Organic Chemistry
Making ferrofluid from scratch
Back in October, I tried making ferrofluid but I kept failing and I ended up giving up for a while. Months later though, I got inspired, and I spent an insane amount of time researching ferrofluid and trying to make it. It was a very messy and sometimes frustrating process, but I was event
From playlist Long Projects (25 min+)
Edexcel IGCSE Chemistry (1C, May 2018) | IGCSE Chemistry Questions and Answers
Hazel answers all of the May 2018 1C Edexcel IGCSE Chemistry past paper to help you with your revision. These videos are designed to help with your GCSE science revision. To keep up to date with my Science with Hazel videos and support: Follow me on Instagram: https://www.instagram.com/s
From playlist GCSE Science Exam Questions //
This one is for all the homechemists out there, finally something u might be able to replicate!! Support my channel with patreon: https://www.patreon.com/chemiolis Support my channel by becoming a member https://www.youtube.com/channel/UCoDmZirW1o9XSKSRM6YJ1rQ/join
From playlist Chemistry for home-labs and self-production
Extractions | Chemical processes | MCAT | Khan Academy
Learn about how chemicals can be separated through acid-base extraction. By Angela Guerrero. . Created by Angela Guerrero. Watch the next lesson: https://www.khanacademy.org/test-prep/mcat/chemical-processes/separations-purifications/v/basics-of-chromatography?utm_source=YT&utm_medium=Des
From playlist Chemical processes | MCAT | Khan Academy
Aspirin to Acetaminophen - Part 4 of 6: Mono-nitration of Phenol
Also, acetaminophen = Paracetamol = Tylenol = APAP We are back again for the fourth installment! We will be doing the mono nitration of phenol, to get a mixture of p-nitrophenol and o-nitrophenol. The o-nitrophenol is separated off by steam distillation and the p-nitrophenol that is left
From playlist Aspirin to Acetaminophen (Parts 1 to 6)
Making Dibenzo[a,e]cyclooctene - an Emerging Ligand?
Keep exploring at https://brilliant.org/Chemiolis Get started for free, and hurry—the first 200 people get 20% off an annual premium subscription. Support my channel with patreon: https://www.patreon.com/chemiolis Xylene bromination: http://www.orgsyn.org/demo.aspx?prep=CV4P0984 Dibenzo
From playlist Interesting Molecular Structure
CCHF VS 4.2 | Prof. Dong: Adventures in Aldehyde C–H Bond Activation
Prof. Vy Dong, from UC-Irvine, presents on Adventures in Aldehyde C–H Bond Activation
From playlist CCHF Virtual Symposia
Ionic and Covalent Bonding - Chemistry
This chemistry video tutorial provides a basic introduction into ionic and covalent bonding. It explains the difference between polar covalent bonds and nonpolar covalent bonds. Ionic bonds exist between metals and nonmetals and are made up of ions with positive and negative charges. Co
From playlist New AP & General Chemistry Video Playlist