title: [Application of AOTF in spectral analysis. 2. Application of self-constructed visible AOTF spectrophotometer].
abstract: The performances of a self-constructed visible AOTF spectrophotometer are presented. The wavelength calibration of AOTF1 and AOTF2 are performed with a didymium glass using a fourth-order polynomial curve fitting method. The absolute error of the peak position is usually less than 0.7 nm. Compared with the commercial UV1100 spectrophotometer, the scanning speed of the AOTF spectrophotometer is much more faster, but the resolution depends on the quality of AOTF. The absorption spectra and the calibration curves of copper sulfate and alizarin red obtained with AOTF1(Institute for Silicate, Shanghai China) and AOTF2 (Brimrose U.S.A) respectively are presented. Their corresponding correlation coefficients of the calibration curves are 0.9991 and 0.9990 respectively. Preliminary results show that the self-constructed AOTF spectrophotometer is feasible.
authors.affiliation: Department of Chemistry, Zhongshan University, Guangzhou 510275, China.
authors.forename: Rong-fei
authors.initials: RF
authors.lastname: Peng
authors.forename: Jia-yao
authors.initials: JY
authors.lastname: He
authors.forename: Zhan-xia
authors.initials: ZX
authors.lastname: Zhang
mesh_terms: D000162:Acoustics; D000880:Anthraquinones / Q000737:chemistry*; D002138:Calibration; D019327:Copper Sulfate / Q000737:chemistry*; D005374:Filtration / Q000295:instrumentation; D055095:Optics and Photonics / Q000295:instrumentation*; D013050:Spectrometry, Fluorescence; D013053:Spectrophotometry / Q000295:instrumentation* / Q000379:methods
chemical_list: D000880:Anthraquinones; C010078:alizarin; D019327:Copper Sulfate