An analysis method performed by an analysis apparatus, the analysis apparatus including a first analysis unit having a first nozzle and a second analysis unit having a second nozzle, the method comprising: a step of transporting a rack holding a plurality of sample vessels along a predetermined transport route, wherein the predetermined transport route includes a route to transport the rack holding the plurality of sample vessels from the first analysis unit to the second analysis unit; a step of collecting samples from the plurality of sample vessels held by the rack on the predetermined transport route using the first nozzle which is in a first position over the predetermined transport route, and executing, by the first analysis unit, a first analysis process for the samples collected by the first nozzle; a step of collecting samples from the plurality of sample vessels held by the rack, which is transported through the predetermined transport route, using the second nozzle which is in a second position over the predetermined transport route, on a downstream side in the transport route from the first nozzle, and executing, by the second analysis unit, a second analysis process for the samples collected by the second nozzle; and a step of changing the position of at least one of the first and second nozzles (4A, 4B) over the predetermined transport route when transport of the rack holding the plurality of sample vessels on the predetermined transport route is interrupted or stopped, so that the first nozzle collects samples at a position over the predetermined transport route other than the first position from a sample vessel on the predetermined transport route, or so that the second nozzle collects samples at a position over the predetermined transport route other than the second position from a sample vessel on the predetermined transport route. a step of transporting a rack holding a plurality of sample vessels along a predetermined transport route, wherein the predetermined transport route includes a route to transport the rack holding the plurality of sample vessels from the first analysis unit to the second analysis unit; a step of collecting samples from the plurality of sample vessels held by the rack on the predetermined transport route using the first nozzle which is in a first position over the predetermined transport route, and executing, by the first analysis unit, a first analysis process for the samples collected by the first nozzle; a step of collecting samples from the plurality of sample vessels held by the rack, which is transported through the predetermined transport route, using the second nozzle which is in a second position over the predetermined transport route, on a downstream side in the transport route from the first nozzle, and executing, by the second analysis unit, a second analysis process for the samples collected by the second nozzle; and a step of changing the position of at least one of the first and second nozzles (4A, 4B) over the predetermined transport route when transport of the rack holding the plurality of sample vessels on the predetermined transport route is interrupted or stopped, so that the first nozzle collects samples at a position over the predetermined transport route other than the first position from a sample vessel on the predetermined transport route, or so that the second nozzle collects samples at a position over the predetermined transport route other than the second position from a sample vessel on the predetermined transport route.