Methods and apparatus for sample deposition on an electrically shielded substrate

A method of sample storage is disposed in the at least one sample (10) on a substrate (30), comprising the steps of positioning a Probendispensers (20) over the substrate (30) and actuation of the Probendispensers (20), so that the sample ( 10) (from Probendispenser 20) (along a flight path 11) is moved to a predetermined storage position (32) on the substrate (30), wherein at least a portion of the trajectory (11) is shielded against electrical interference fields. It is also a substrate (30) for receiving samples (10), comprising a substrate body (31), on whose surface at least one depositing position (32) is provided, and described a screening electrode (40) above for electrostatic shielding of the space the at least one depositing position (32) is arranged against electrical interference fields.