| 摘要 |
An apparatus, a sample cuvette and a method for optical measurements on samples which show variable level of scattering. The apparatus, sample cuvette and method may be used for optical measurements on biological, physiological and chemical samples, however, are especially applicable for optical measurements on whole blood. The apparatus and the sample cuvette comprise an absorption filter or an interference filter, which provide correction for variations in the detector sensitivity and in the effective optical pathlength as observed upon varying level of scattering. The absorption filter filter has an absorbance profile characterised by the scattering angle alpha of scattered light which decreases from the center towards the periphery, and the interference filter has a center or a cut-off wavelength, which is longer than the wavelength of the light from the light emission means. The method for optical measurements uses the apparatus or the sample cuvette of the invention. |
