By Anna Wise, PA Business Reporter & Lawrence Matheson Barclays has agreed to purchase Tesco Bank’s retail banking business, including its 2,800 staff members. The banking giant is set to pay around £600 million for the credit cards, loans, savings and operating systems of the UK’s largest supermarket. This announcement comes after rumours that Tesco was considering selling its banking arm to concentrate on its retail business. The deal includes Tesco’s credit cards and unsecured personal loans, worth about £8.3 billion, and approximately £6.7 billion in customer deposits. Over time, Tesco Ban…