Objective: to evaluate the effect of instrumentsensitivity on the concentration determination of tetracaine hydrochloride injection using dead - stop titration method.
目的：探讨永停滴定法测定盐酸丁卡因注射液含量时采用不同灵敏度对含量测定的影响。
2
The instrument is stable and reliable and has high sensitivity and resolution.
该仪器性能稳定、可靠，有高的灵敏度和分辨率。
3
In this paper we describe a method to improve the recording sensitivity by twice reflections of light ray without changing the inherent sensitivity of the instrument.