A sampler device for gas chromatography comprising: - a unit for the support and movement both of a single instrument holding unit, on which at least two instruments are mounted, provided with respective control plungers (61', 61"), for taking/inserting (6', 6") samples to be analyzed, and of a unit for the simultaneous actuation of the corresponding plungers (61', 61") of said at least two taking/inserting instruments (6', 6"), - said support and movement unit is mounted on a base platform and is configured to move said instrument holding and actuation units along at least one direction (X, Y) substantially horizontal and parallel to said base platform and along a direction substantially vertical and perpendicular to said base platform, - said support and movement unit being also configured to move said instrument holding and actuation units between a first station and a second station, at least one of said first and second station being defined beyond the plan encumbrance of said base platform on which said support and movement unit is mounted, - a control unit which automatically controls the movement of said support and movement unit between said first station, wherein said unit for the actuation of the plungers (61', 61") of said two taking/inserting instruments (6', 6") is controlled by said control unit to simultaneously take the samples to be analyzed by means of said two instruments, and said second station wherein said unit for the actuation of the plungers (61', 61") of said two taking/inserting instruments (6', 6") is controlled by said control unit to simultaneously insert the samples previously taken by means of said two taking/inserting instruments (6', 6") within two distinct injectors (10', 10") of a gas chromatograph. - a unit for the support and movement both of a single instrument holding unit, on which at least two instruments are mounted, provided with respective control plungers (61', 61"), for taking/inserting (6', 6") samples to be analyzed, and of a unit for the simultaneous actuation of the corresponding plungers (61', 61") of said at least two taking/inserting instruments (6', 6"), - said support and movement unit is mounted on a base platform and is configured to move said instrument holding and actuation units along at least one direction (X, Y) substantially horizontal and parallel to said base platform and along a direction substantially vertical and perpendicular to said base platform, - said support and movement unit being also configured to move said instrument holding and actuation units between a first station and a second station, at least one of said first and second station being defined beyond the plan encumbrance of said base platform on which said support and movement unit is mounted, - a control unit which automatically controls the movement of said support and movement unit between said first station, wherein said unit for the actuation of the plungers (61', 61") of said two taking/inserting instruments (6', 6") is controlled by said control unit to simultaneously take the samples to be analyzed by means of said two instruments, and said second station wherein said unit for the actuation of the plungers (61', 61") of said two taking/inserting instruments (6', 6") is controlled by said control unit to simultaneously insert the samples previously taken by means of said two taking/inserting instruments (6', 6") within two distinct injectors (10', 10") of a gas chromatograph.