| 摘要 |
PCT No. PCT/FI89/00221 Sec. 371 Date May 31, 1991 Sec. 102(e) Date May 31, 1991 PCT Filed Dec. 1, 1989 PCT Pub. No. WO90/06527 PCT Pub. Date Jun. 14, 1990.A method for correction of the counting error in liquid scintillation counting in the attenuation of light passing through a sample solution is measured before or after the actual liquid scintillation counting takes place. By means of the attenuation measurement the error in the liquid scintillation counting result, caused by the colorness of the sample solution, and/or by the counting apparatus, is corrected. The apparatus has a liquid scintillation counter provided with cylinder shaped optics. A photometer is incorporated in the liquid scintillation counter. By means of the photometer, the attenuation of 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 features of the apparatus.
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