an article for dispensing very small volumes of liquid via non touch - off transfer . the article includes a rotator that drives a liquid dispensing system in circular motion at constant rotational speed . the liquid dispensing system has a delivery system that is operatively connected to a dispensing element a small volume of liquid is advanced by the delivery system to the dispensing element . as a consequence of the circular motion , energy is imparted to the liquid causing it to forcibly issue from the dispensing element .