Search results
Results From The WOW.Com Content Network
Other examples of inorganic polyprotic acids include anions of sulfuric acid, phosphoric acid and hydrogen sulfide that have lost one or more protons. In organic chemistry and biochemistry, important examples include amino acids and derivatives of citric acid. Although an amphiprotic species must be amphoteric, the converse is not true.
Molecules to be focused are distributed over a medium that has a pH gradient (usually created by aliphatic ampholytes). An electric current is passed through the medium, creating a "positive" anode and "negative" cathode end. Negatively charged molecules migrate through the pH gradient in the medium toward the "positive" end while positively ...
Chromatofocusing is a protein-separation technique that allows resolution of single proteins and other ampholytes from a complex mixture according to differences in their isoelectric point. [1] Chromatofocusing uses ion exchange resins and is typically performed on fast protein liquid chromatography (FPLC) or similar equipment capable of ...
This can be dependent on the size, charge, or structure of the ions. Common examples of ions that can bind to ion exchangers are: H + and OH − . Singly charged monatomic (i.e., monovalent) ions like Na +, K +, and Cl −. Doubly charged monatomic (i.e., divalent) ions like Ca 2+ and Mg 2+. Polyatomic inorganic ions like SO 2− 4 and PO 3− 4.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
In chemistry, a zwitterion (/ ˈ t s v ɪ t ə ˌ r aɪ ə n / TSVIT-ə-ry-ən; from German Zwitter ' hermaphrodite '), also called an inner salt or dipolar ion, [1] is a molecule that contains an equal number of positively and negatively charged functional groups.
For example, endometrial and ovarian cancer are both are more prevalent in women who are obese, according to Dr. Mitchell Clark, MD, MPH, a gynecologic oncologist at the Yale Cancer Center. (The ...
The vitamin C from the oranges in this smoothie helps support immune health, making it a great staple during cold and flu season. Plus, it tastes just like a creamsicle.