７５１－Ｇ型分光光度计指示不稳定，是容易经常出现的故障，造成这种现象的原因一是化验员操作不当或环境影响所致，二是仪器本身的故障。一、化验员的操作错误１、比色皿清洗不干净，内壁有脏物，随着粘附物的溶解就会朝着增大或减小的方向漂移。另外仪器的灵敏度旋钮位... 751-G-type spectrophotometer indicates instability, is prone to frequent failures, one of the reasons for this phenomenon is caused by improper operation of laboratory technicians or environmental effects, and second, the failure of the instrument itself. First, the laboratory technician error 1, the cuvette is not clean, the inner wall of dirt, with the adhesion of the material will increase toward the direction of increasing or decreasing drift. Another instrument sensitivity knob ...