| 摘要 |
The object of the present invention is that a dynamic range is extended in an electrophoresis unit and concentration differences among a plurality of samples measured simultaneously are increased. An irradiation time to the samples is adjusted during analysis without changing a sampling time. By shortening the irradiation time, a fluorescence amount of the samples is reduced to cause signal intensity detected by a detector to physically decrease. If the irradiation time is very short (several 100 msec), the irradiation time and fluorescence intensity are in a direct proportional relationship. It is known that, if the irradiation time is reduced to 1/n, the fluorescence intensity, that is, signal intensity to be detected will be 1/n. Thus, for data whose irradiation time is reduced to 1/n during analysis, data obtained by multiplying a substantially measured value by n is used for data analysis as a true value to be originally acquired.
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