How to send '@' as a key press to a text field

How can we send the '@' sign as in email address, as a keypress event ? here is my code:

 if (string.IsNullOrEmpty(searchText)) return;

           foreach (var key in searchText)

            {
                if (key.ToString() == ".")
                {
                    m.Desktop.KeyBoard.KeyPress(Keys.OemPeriod); 
                }

                if (key.ToString() == "@")
                {
                    m.Desktop.KeyBoard.KeyPress(???);
                }