the present invention, the patients extracorporeal blood treatment, preferably dialysis treatment, hemodialysis treatment, blood dialysis filtration treatment, blood filtration treatment, and a method for monitoring at least one of the peritoneal dialysis treatment. In the method, said liquid sample being used for extracorporeal blood treatment is irradiated with linearly polarized light, and performs detection of the intensity in the first polarization plane of the fluorescence emitted from the liquid sample is discharged from said liquid sample and it is to perform the detection of the intensity at a second different polarization plane and said first plane of polarization of fluorescence identifies the anisotropy of the fluorescence emitted from said liquid sample, and the anisotropic according to the liquid sample Based on both the intensity and identify the concentration of the at least one fluorescent dye molecules in the inner liquid sample.BACKGROUND 7本発明は、患者の体外血液治療、好ましくは透析治療、血液透析治療、血液透析濾過治療、血液濾過治療、および腹膜透析治療の少なくとも一つを監視する方法に関する。当該方法においては、前記体外血液治療に使用された液体試料に直線偏光された光を照射し、前記液体試料から放出される蛍光の第一偏光面における強度の検出を行ない、前記液体試料から放出される蛍光の前記第一偏光面とは異なる第二偏光面における強度の検出を行ない、前記液体試料から放出される前記蛍光の異方性を特定し、前記液体試料に係る前記異方性と前記強度の双方に基づいて、前記液体試料内における少なくとも一つの蛍光色素分子の濃度を特定する。【選択図】図7
