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国产751型分光光度计由于运输过程中振动等原因,波长往往有较大的偏差,必须进行校正。经调校过的仪器,在正常使用过程中,亦需定期作波长校正。调校方法,在说明书中均有较详尽介绍,但当用氢灯的486.1nm谱线作校正时,往往要反复调节波长刻度校正螺钉,再根据指零电表指针偏转情况,来确定其486.1nm波峰所在。这种方法费时较长,虽经多次调校,亦很难使波峰恰好调至486.1nm波长处。
Domestic 751 spectrophotometer due to vibration during transport and other reasons, the wavelength is often a larger deviation, we must be corrected. The instrument has been calibrated, in the course of normal use, but also for regular wavelength correction. Adjustment methods, are described in more detail in the manual, but when using 481.1nm hydrogen lamp for calibration line, it is often necessary to repeatedly adjust the wavelength calibration screw, and then refers to the zero meter pointer deflection, to determine its 486.1nm Crest where. This method takes a long time, although after many adjustments, it is difficult to make the peak just adjusted to 486.1nm wavelength.