Control method of atomic absorption spectrophotometer and atomic absorption spectrophotometer

The invention provides a control method of an atomic absorption spectrophotometer and the atomic absorption spectrophotometer. When a control parameter measured in accordance with a plurality of elements in an atomic absorption spectrophotometer is changed, the measurement accuracy is maintained and the measurement time is automatically optimized. A control method for an atomic absorption spectrophotometer for measuring a plurality of elements contained in a sample, the control method comprising: a switching step for switching to a control parameter corresponding to an element to be measured in the order of measurement of the plurality of elements; a measurement step of starting measurement of the absorbance of the element corresponding to the control parameter after the control parameter is switched; a first determination step for determining the stability of the absorbance measured in the measurement step; and a recording step in which, when it is determined that the absorbance is stable in the first determ