The present invention provides an improved arterialized earlobe blood collection device, and an improved process for blood analysis. The device and the process of the invention can be used in many unsual and/or risky situations, including collecting arterialized blood in space missions under microgravity environment and within ambulances or the like. The process of the present invention enables easier and faster blood analysis, since the blood collector device of the invention is coupled with an analyzing apparatus so as no blood or needle manipulation is required.