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光电比色结构是一种有效测量透明介质吸光能力的结构,主要测量方法为分光光度法,即通过测定被测物质在特定波长处或一定波长范围内光的吸收度,对该物质进行定性和定量分析的方法。本文探究了一种新的光电比色结构的可行性以及可操作性,以数据的重复性、稳定性、示值误差等指标为主要依据,并与当前主流结构测定数据进行对比,对这种斜光路结构进行验证。数据表明:在一定角度范围内(入射角≤75°)吸光度与浓度有良好的线性关系,各项指标均明显高于国家标准。本文提供的一种新型光路比色结构即斜光路,能够解决大部分因检测因子在吸收峰波长吸光能力差、传统单倍垂直入射光电比色结构测量的吸光度过小而造成比尔郎伯定律的偏离问题,使水质在线自动检测设备在不增加量程液使用量情况下,溶液的吸光度增大并提高了的精度,工作曲线具有良好的线性关系(相关系数均大于0.999)。本光路结构是通过光电比色支架为载体来实现。
Photoelectric colorimetric structure is an effective measurement of the transparent medium absorbance structure, the main measurement method for spectrophotometry, that is, by measuring the measured substance at a specific wavelength or a certain wavelength range of light absorption, the qualitative and quantitative Quantitative analysis methods. This paper explores the feasibility and operability of a new photoelectric colorimetric structure based on the data repeatability, stability, indication error and other indicators, and compared with the current mainstream structure determination data, this kind of Oblique light path structure to verify. The data show that there is a good linear relationship between absorbance and concentration at a certain angle range (incident angle ≤75 °), and all indexes are obviously higher than the national standard. This paper provides a new optical path colorimetric structure that is oblique optical path, can solve most of the absorption factor due to the detection factor of the absorption peak wavelength poor, the traditional single vertical incident photoelectric colorimetric structure of the measured absorbance is too small to cause the Lambert’s law Deviation from the problem, the water quality online automatic detection equipment without increasing the amount of liquid usage, the solution increases the absorbance and improve the accuracy of the working curve has a good linear relationship (correlation coefficient greater than 0.999). The optical path structure is achieved by a photoelectric colorimetric carrier as a carrier.