What Are Those Forces During SPE?
Non-Polar Interaction, the interaction between a non-polar functional group on a target compound and a non-polar sorbent, which is better reflected in a polar solvent environment, especially in a water environment. Also known as hydrophobic interactions, such as the interaction between phthalate compounds and C18 in aqueous environments.
Polar interaction, the interaction between the polar functional group on the target compound and the polar functional group on the adsorbent. Polar interactions include Hydrogen Bonding, Dipole/Dipole, Induced Dipole/Dipole, π-π (Pi-Pi) and many other interaction forces. This force can be better reflected in a weakly polar or non-polar solvent environment.
Ion Interaction refers to an attraction force (known as Coulomb force) between target compounds with a positive/negative charge and absorbents with the opposite charge.
Secondary Interaction, for reversed-phase silica bonds and adsorbents, the residual silanol groups on the surface of the particles will interact polarly with polar compounds, and some of the silanol groups will undergo ionic interaction with basic compounds after dissociation.
These forces are secondary to non-polar interactions and therefore are referred to as secondary interactions. Secondary interactions are undesirable for reversed phase silica sorbents and can usually be eliminated by the End capping technique;
Personne à contacter : Bruce Lu, +86 29 89284429
Bonne affaire : acheter au vendeur
Nous vous invitons à lire nos conditions générales d'utilisations. Vous pouvez aussi vous rendre sur nos FAQ et consulter notre page d'informations sur les risques liés à la contrefaçon.
Cette page concerne les importateurs et exportateurs de What Are Those Forces During SPE? Rechercher dans la catégorie : Divers Rechercher dans la catégorie : what, those, forces, during |
Jeudi 29 octobre 2015
Aksapark a travaillé dans la conception et la production de mobilier urbain et aire de jeux, elle a été créé en 1996, elle propose des produits de hautes qualités, à la fois en Turquie et dans 50 autres pays à travers le monde, ses produits peuvent être utilisés dans de nombreux domaines...
Aksapark Kent Mobilyaları
- aksapark
- 06380 - Sincan
- +903122671100
Jeudi 18 avril 2024
Quantité : 500 Set/S - Prix : 1USD
- Quick Details - - Type: Multi-Function Beauty Equipment - Certification: CE - Place of Origin: Guangdong, China (Mainland) - Brand Name: EHO - Model Number: IHG882A - Voltage: : 110V/220V - best cream removal wrinkle Power: 450W - Oxygen contraction: Over 90% - Oxygen type...
Guangzhou Yihao Electronic Technology Co., Ltd.
- 510385 - Guangdong
- 86 20 81495407
Samedi 20 avril 2024
Quantité : 1 - Prix : 10000-13000
Thrilling flight simulator for sale 4D 5D theater simulator system Please contact with me if you are interested in. Contact: jackhu My skype: hujack7d-cinema My Mobile/Whatsapp: +86 13849155126 Product Description Product Description 1.Newest interactive system 720 degree...
Guangzhou Zhuo Yuan Machinery Co.Ltd
- 511450 - shiji
- +0086 13849155126