一、引言分子吸收光谱学作为分析技术在科学和技术领域有着广泛应用,但是对所用分光光度计的透射率(Transmittance)或吸收度(Absorbance)刻度的有效校准很长时间没有圆满解决。50年代初到60年代许多研究者意识到这一问题的严重性,并进行了联合实验,结果发现不同仪器对同一量的测量值有很大差异,然 I. INTRODUCTION Molecular absorption spectroscopy is widely used in the fields of science and technology as an analytical technique. However, the effective calibration of the Transmittance or Absorbance scales of the spectrophotometers used for a long time has not been satisfactorily solved. Many researchers from the early 1950s to the 1960s realized the seriousness of this problem and carried out joint experiments. As a result, they found that there were great differences between the same instruments measured by different instruments. However,