光猝灭法测定水杨酸醑中的水杨酸

Detecting Acidi Salicylici of Spirit Acidi Salicylici by Quenching Luminosity

目的：探索一种新的测定水杨酸醑中水杨酸的方法。方法：采用光猝灭法测定水杨酸醑中的水杨酸。结果：水杨酸浓度在 １～４０ μｇ／ｍ ｌ 范围内与 ｌｇ（ Ｆ０／ Ｆ）成线性，检测限为 １０ μｇ／ｍ ｌ，回收率为 １０２％ ， Ｒ Ｓ Ｄ 为７８５％ ，与紫外分光光度法比较没有显著性差异（ Ｐ＞ ０．０５）。结论：本实验为在位、在线测定水杨酸奠定了基础。

Objective: Finding a new method to detect acidi salicylici of spirit acidi salicylici. Method: Monitoring acidi salicylici of spirit acidi salicylici by qenching luminosity was described. Results: Range of concentration from 1~40 μg/ml of acidi salicylici showed fime linear with lg (F 0/F), the recovery was 102%, the relative standard deviation was 7.85%, the detection limit was 1.0 μg/ml. Compared with ultraviolet spectrophotometry, there was no significantly difference. Conclusion: A new means of on line and in situs monitoring acidi salicylici was developed.