Model 721 Spectrophotometer 分光光度计
721-spectrophotometer 分光光度计
type 721-100 visible spectrophotometer 型分光光度计
721 type spectrophotometer 型分光光度计
A simple method for automatical adjustment of light intensity on model 721 spectrophotometer is introduced.
介绍了一种实现721型分光光度计光强自动调节的简便方法。
With xylenol orange as developer and model 721 spectrophotometer, it is simple and easy to measure human serum zinc concentration, which is suitable for hospital laboratories.
用二甲酚橙作显色剂、72型分光光度计进行血清锌检测，方法简便，适合医院化验室使用。
This paper introduced some common faults of 721 spectrophotometer, found out the cause of formation, and presented fixing method, it may be used for instrument maintenance for reference.
介绍了721型分光光度计，灯电源电路和稳压电路故障现象，分析了故障产生的原因，提供了排除故障办法，对该仪器维修提供了借鉴的经验。
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