Simultaneous Determination of 1-Naphthol and 2-Naphthol in Water by Spectrofluorimetry
ZHOU Chun1,WANG Qiong-e2,ZHUANG Hui-sheng1*
1. College of Environment Science and Engineering, Donghua University, Shanghai 201620, China 2. College of Chemistry and Chemical Engineering, Donghua University, Shanghai 201620, China
Abstract：A simple and sensitive method for the simultaneous determination of trace amounts of 1-naphthol and 2-naphthol by fluorescence spectrofluorimetry was established based on the fact that the excitation and emission wavelengths are different between 1-naphthol and 2-naphthol. The influencing factors, such as pH temperature and surface activator were synthetically considered in the present paper. Interference of similar organic matters and inorganic ions were also taken into account. Compared with traditional methods, the method discussed here needs no complex pretreatments and expensive equipment. So it is convenient, quick and cheap yet with a satisfactory precision and accuracy. The accuracy and precision of results obtained are satisfactory when the concentration ratio (CR) of 1-naphthol to 2-naphthol is in the range of 1:19-19:1; the detection limit (DL) of both naphthols is 8.6×1 0-3 ng·mL-1; the relative standard deviation (RSD) of 1-naphthol and 2-naphthol is 1.26% and 1.45% respectively; and the recovery ratio (RR) of both naphthols is between 95% and 105%. This proposed method has been applied to the determination of trace amounts of 1-naphthol and 2-naphthol in the man-made sample water and environmental imitative water simultaneously, and obtained a satisfactory result, showing that the method discussed here is simple, sensitive and reliable in the future use.
周纯1,王琼娥2,庄惠生1*. 直接荧光光度法同时测定水中痕量的1-萘酚、2-萘酚[J]. 光谱学与光谱分析, 2008, 28(11): 2628-2632.
ZHOU Chun1,WANG Qiong-e2,ZHUANG Hui-sheng1*. Simultaneous Determination of 1-Naphthol and 2-Naphthol in Water by Spectrofluorimetry. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(11): 2628-2632.
[1] WANG Yong, ZHANG Quan-xing, CHEN Jin-long(王 勇, 张全兴, 陈金龙). Ion Exchange and Adsorption(离子交换与吸附), 1997, 13(6): 573. [2] Jandera P, Churacek J, Bartosova J. Chromatographia, 1980, 8: 485. [3] Terabe S, M iyashita Y, ShibitaO, et al. J. Chomatogr, 1990, 516: 23. [4] LI Jing-feng, LIU Ye(李景峰, 刘 晔). Chinese J. Anal. Chem.(分析化学)，1992, 20(12): 1448. [5] HU Jing-tian, YANG Jing-he, ZHOU Guang-jun(胡敬田, 杨景和, 周广军). Chinese J. Anal. Chem.(分析化学)，1996, 24(9): 1059. [6] Hercules D M, Rogers L B. Spectrochimica Acta, 1959, B15: 393. [7] TANG Bo, HE Xi-wen, SHEN Han-xi(唐 波, 何锡文, 沈含熙). Environmental Chemistry(环境化学), 1996, 15(1): 61. [8] LING Xiao, CAO YU-zhen, MO Cui-yun, et al(凌 晓, 曹玉珍, 莫翠云, 等). Research Report of Chinese J. Anal. Chem.(分析化学研究简报), 2001, 29(12): 1412. [9] DING Ya-ping, WU Qing-sheng, ZHU Ren-bin, et al(丁亚平, 吴庆生, 朱仁斌, 等). Journal of Anhui Agricultural University(安徽农业大学学报), 1998, 25(3): 310. [10] BAI Bao-lin, ZHANG Hai-rong(白宝林, 张海容). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2003, 23(4): 772. [11] ZHANG Xiao-song, LIN Chang-shan, HE Tian-jing(张孝松, 林长山, 何天敬). Chemical Reagent(化学试剂), 1989, 11(3): 129. [12] DUAN Wen-sheng, GAN Li-jun(段文胜, 干丽君). Shanghai Dye(上海染料), 2003, (2): 31. [13] Heranandez L M, Algarra G M, Isabel L. Talanta, 1999, 49(3): 679. [14] WANG Yan, LI Xuan-dong(王 炎, 李宣东). Journal of Instrucmental Analysis(分析测试学报), 2002, 21(6): 65.
