Disclosed relates to a simplified method for resolving enantiomers by dissolving a racemic mixture having chiral carbon in \u03b1-position of nitrogen and an amino acid to prepare a diastereomeric salt, not using catalyses or enzymes, with enhancing the optical purity remarkably. The device detects a first gesture, and in response, displays application restriction control user interface objects for the first application. The organic compounds that inhibit or retard the consumption of additives increases the life of the plating bath and improves the efficiency of the plating process. A second chamber is connected with the test plate. Removing the anchor involves separating the proximal heads and reversing the implantation process.