摘要
用绿色发光二极管和硅光电二极管制成光度探头，监测电生Ｉ２滴定药片中Ｖｃ时淀粉指示剂的颜色变化，通过ＭＸ２１Ｂ型光度探头式数字自动光度滴定仪实现了自动光度滴定，无需标准溶液．
The photometric probe made with the green LED and the silicon photodide responded sensihvely to tha change of the color of starch indicator when Vc titrated with electrolysed I2. Autophotometric titrat tion was realized by utilizing type MX21B as digital autophotometric titrattion instrument without stan dard solution.
出处
《西南师范大学学报（自然科学版）》
CAS
CSCD
1996年第3期304-306,共3页
Journal of Southwest China Normal University(Natural Science Edition)
关键词
光度滴定
库仑滴定
维生素C
ascorbieacid
photometric titration
coulometric titation
