Abstract: An octa-electrode linear ion trap mass analyzer is formed by eight cylindrical electrodes and at least two end-cap electrodes. The inside surfaces of the eight cylindrical electrodes are free-form. The material of the octa-electrode linear ion trap mass analyzer is a conductive metal material or an insulating material plated with a conductive coating. The eight cylindrical electrodes are divided into four groups of cylindrical electrodes in total, each group of the four groups of cylindrical electrodes comprises two cylindrical electrodes, and each two groups of the four groups of cylindrical electrodes are parallelly placed. At least one through hole is provided with in the center of the end-cap electrode, and the two end-cap electrodes are respectively arranged at both ends of the cylindrical electrode.

Abstract: An amplification system includes a first amplification module, a second amplification module, a third amplification module I, a fourth amplification module I, a first load, a third amplification module II, a fourth amplification module II and a second load. An output terminal of the first amplification module is connected to an input terminal of the second amplification module; output terminals of the second amplification module are connected to an input terminal of the third amplification module I and an input terminal of the third amplification module II. An output terminal of the third amplification module I is connected to an input terminal of the first load through the fourth amplification module I. An output terminal of the third amplification module II is connected to an input terminal of the second load through the fourth amplification module II.

Abstract: An amplification system includes a first amplification module, a second amplification module, a third amplification module I, a fourth amplification module I, a first load, a third amplification module II, a fourth amplification module II and a second load. An output terminal of the first amplification module is connected to an input terminal of the second amplification module; output terminals of the second amplification module are connected to an input terminal of the third amplification module I and an input terminal of the third amplification module II. An output terminal of the third amplification module I is connected to an input terminal of the first load through the fourth amplification module I. An output terminal of the third amplification module II is connected to an input terminal of the second load through the fourth amplification module II.

Abstract: An octa-electrode linear ion trap mass analyzer is formed by eight cylindrical electrodes and at least two end-cap electrodes. The inside surfaces of the eight cylindrical electrodes are free-form. The material of the octa-electrode linear ion trap mass analyzer is a conductive metal material or an insulating material plated with a conductive coating. The eight cylindrical electrodes are divided into four groups of cylindrical electrodes in total, each group of the four groups of cylindrical electrodes comprises two cylindrical electrodes, and each two groups of the four groups of cylindrical electrodes are parallelly placed. At least one through hole is provided with in the center of the end-cap electrode, and the two end-cap electrodes are respectively arranged at both ends of the cylindrical electrode.