Ion mobility analysis apparatus

An ion mobility analysis method, comprising:

• providing an ion source for continuously generating ions, which contain analyte ions;
• providing a first ion storage zone located downstream of the ion source;
• providing a second ion storage zone located downstream of the ion source;
• and
• providing an ion mobility analyzer located downstream of the ion source for receiving the ions generated by the ion source and performing mobility analysis;
• wherein the ion mobility analyzer scans at least one operating parameter f(t) in an operating period from t0 to t1, so that ions with different mobilities pass through the ion mobility analyzer sequentially, the operating parameter f(t) is a monotonic function of time t, the analyte ions can pass through the ion mobility analyzer in an operating parameter range of [f(tA), f(tB)], and t0<tA<tB<t1;
• the operating period is repeated multiple times, and in each operating period:
• in the stage of t0≤t<tA, at least part of the analyte ions filtered out by the ion mobility analyzer in the stage, and/or at least part of analyte ions which are pre-stored in the second ion storage zone are transmitted and stored in the first ion storage zone;
• in the stage of tB<t≤t1, at least part of the analyte ions filtered out by the ion mobility analyzer in the stage are transmitted and stored in the second ion storage zone;
• in the stage of t1≤t≤tB, the analyte ions generated by the ion source, the analyte ions stored in the first ion storage zone in the same operating period can pass through the ion mobility analyzer to enter a next stage analysis apparatus or be detected by a detector.