Such attention when the concentration is achieved by certain willpower, psychologists called posleproizvolnoe or secondary, it is characterized by a conscious attitude to work and after some training in this skill can be achieved without constant willpower. But you can do to ease the task and provide the opportunity to focus.
Eliminate all unnecessary exposure. Turn off the sound from your mobile phone: you can always call the person back, if necessary later. Forbid yourself to be distracted by an effort to access the Internet, games, turn off the music.
Organize in the workplace in order. Those documents that may be required for you, place a closer look at the table or on a shelf, where they can always get it, just held out his hand. Provide everything you need for the job, not to get up from your desk in search of stationery, manuals, instructions.
If you feel that the idea stuck, and work has become less productive, get out of the office, take a walk, get some air. Do some exercise, drink a cup of coffee or tea, chat about abstract topics with colleagues and get back into the workplace.
In the event that your job is not required to perform in an emergency procedure, opt for its execution time, which, in accordance with your life cycle is most productive. For most people, this time until dinner. In the morning you will be able to do much more for the same amount of time.
If you have to hard work and perform important tasks, try before sleep and rest well. You should not overeat before starting work, the digestive process is not conducive to concentration and causes relaxation.
If possible, develop the ability to focus on the process. It can be learned by attending special training courses and seminars.