| 摘要 |
The object of the invention is a method for the correction of the counting error in the liquid scintillation counting. According to the invention the attenuation of the light passing through the sample solution is measured before or after the actual liquid scintillation counting takes place. By means of the attenuation measurement the error of the liquid scintillation counting result caused by the colorness of the sample solution and/or by the counting apparatus is corrected. Another object of the invention is an apparatus to carry out said method. The apparatus comprises a liquid scintillation counter provided with cylinder shaped optics (12, 13). A photometer (17, 22) is incorporated in the liquid scintillation counter. By means of said photometer the attenuation of the light passing through the sample solution is measured before or after the actual liquid scintillation counting measurement, where said attenuation is caused by the colorness of the sample solution and/or due to other reasons in the apparatus. |
