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生化分析仪是目前检验科常用的检验设备之一，它的应用日益广泛。小型生化分析仪其基本原理基于分光比色的方法。在工作中经常遇到仪器某个波长上定标不能通过，或零点漂移过大，或根本不能使用。这时就应考虑滤光片是否有问题，因为生化分析仪分光用的滤光片，由于年久老化，
The biochemical analyzer is one of the commonly used inspection equipments in the laboratory today, and its application has become increasingly widespread. The basic principle of the small biochemical analyzer is based on the colorimetric method. Often encountered in the work of the instrument at a certain wavelength calibration can not pass, or zero drift is too large, or can not be used at all. At this time, it is necessary to consider whether the filter is problematic because the filter used for spectroscopic analyzer spectrophotometry is aging due to aging.