“Lincoln Electric Company has a mission of attaining and preserving international competence as a supplier of superior equipments and products with the highest quality (lincolnelectric).” The origin of the company is in Cleveland, Ohio, where the owner Mr. Lincoln began operations in 1895 making and distributing electrodes and welding equipment (Hastings, 1999). The founder invested a capital of $200 and from that it has managed to grow over the years into being the largest manufacturer of welding machines and electrodes employing over 8000 people. Even though it started operations in an economy that was in a depression and with many competitors, it has ...
Electrode Case Studies Samples For Students
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Question 1.Protein Purification
(a) The peptide Lys-Gly-Ala-Glu is stored in a buffer of pH 6.0. Using chemical reasoning predict the migration direction (anodal, cathode or stationary) of the peptide at pH 6.0 based on your understanding of the nature of the constituent amino acids in the tetra peptide.
Figure 1.
In electrophoresis, amino acids that are negatively charged migrate toward the positively charged anode and vice versa. This means that amino acids move towards the anode at a high pH value and move toward the cathode at a lower pH value. The amino acids would not move or migrate when the pH value of the solution within which ...
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