The rate of migration of the particle is the sum of its own electrophoretic mobility and electroosmotic flow rate. The advantage of electroosmotic flow is the fact that almost all the particles are moving independently of the charge in the same direction. In normal conditions, i.e. capillary surface is negatively charged, the flow moves from the anode to the cathode. The anions are also moving to the cathode, as EOF may is measurable greater than the electrophoretic mobility. That means, that cations, anions and neutral molecules can be separated electrophoretically in a single analysis since they migrate in the same direction. ● Cations moved most quickly, as the EOF and electrophoretic movement directed in the same direction to the cathode
tubes. Compare the speeds of reaction in the two tube! Explain! The activity of reaction increased after addinf HCl on zinc granule because Cl ions boosts the reactions. 1.3. Place an aluminium granule into each of two test tubes. Pour ~3 cm 3 of CuSO4 solution on top of one of them, and an equal amount of CuCl2 solution onto the other one. Compare the intensity of the reactions in the two test tubes! Which of the anions (Cl or SO42) speeds up the reaction? Reaction in tube where is CuCl2 solution included is more active. Cl boosts the reaction Check the conclusion you just made by adding some solid NaCl into the test tube containing CuSO4 and observe whether the speed of reaction changes. Write the chemical equation of the reaction between aluminium and copper(II) chloride! Reaction intensifies when adding to tube of CuSO4 some solid NaCl.
ways that are dependent primarily on the meat. The minimum water-holding capacity myofilaments. Some of the factors that alter of meat occurs around pH 5.0, which corre- the spatial arrangement of the myofilaments sponds to the isoelectric point of actomyosin. include alterations in net charge induced by In addition, toughness is negatively corre- pH changes, screening of charges by anions/ lated with initial pH and rate of pH decline cations, presence of divalent cations (Mg++, (Zamora et al. 1996). Two-thirds of the WHC Ca++), denaturing conditions that alter protein losses occurring during rigor are due to loss conformation (rapid pH decline while the of ATP, with the remainder due to pH decline. carcass temperature is still high), and pres- The rate of pH decline is partially genetic, in
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