Spectroscopy and Spectral Analysis, Volume. 37, Issue 5, 1466(2017)
Optical Property and Concentration Optical Detection of Polyacrylamide Solution
The method of optical detection to test polyacrylamide solution was developed which took advantage of TU-1901/1900 double-beam UV-Vis spectrophotometer and IRPrestige-21 FT-IR Spectrometer to measure the transmitted spectrum of polyacrylamide solution in the range of 5~600 mg·L-1 concentration. The spectrum characteristics and inverse analysis their concentrations of polyacrylamide solution within the wavelength of 190~900 nm and 400~4 000 cm-1 were investigated. The results show that there are strong absorption of polyacrylamide solution in 200~300 nm, 400~920 cm-1, 2986~3 684 cm-1 and the transmittances of solution with different concentrations have linear relationship at 220 nm and 2 623 cm-1; the maximum calculation error to inverse the unknown concentrations successively are 6.98%, 2.34% and 0.79%, when inversion calculation uses 2, 3, 4 measured values in ultraviolet band.
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QI Han-bing, LI Shu-ting, WANG Qiu-shi, WU Guo-zhong, LI Dong. Optical Property and Concentration Optical Detection of Polyacrylamide Solution[J]. Spectroscopy and Spectral Analysis, 2017, 37(5): 1466
Received: Jan. 25, 2016
Accepted: --
Published Online: Jun. 20, 2017
The Author Email: Han-bing QI (qihanbing@sina.com)