| 摘要 |
PURPOSE:To measure a large-sized sample and a deformed sample which can not be put in a sample chamber directly by composing an attachment for large- sized undefined form sample measurement of a prepositioned optical system installed in the sample chamber and an external sample chamber. CONSTITUTION:When the prepositioned optical system part P is installed in the sample chamber, reference luminous flux R and luminous flux S for a sample which enter the sample chamber SC from the light source part of a spectrophotometer are reflected by mirrors M1 and M2 by 90 deg. to enter the external sample chamber OS. The reference luminous flux R is reflected by mirrors M3 and M4 and incident on an integrating sphere IS set at a standard position. The sample luminous flux S, on the other hand, is reflected by a mirror M5 by 90' and incident on the integrating sphere IS across the center of an external reagent chamber. When the transmitted light of a liquid sample is measured by using a rectangular cell, a sample cell is placed right before an incidence window WS for the sample luminous flux and a blank cell is placed right before an incidence window WR1 for the reference luminous flux to take a measurement.
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