Abstract：A new fluorescent reagent of 4-dimethylaminobenzaldehyde-anthranilic acid(DBAA) was synthesized and identified. Moreover, the fluorescence quenching reaction of DBAA with antimony (Ⅲ) was investigated, and the optimal conditions for its application for determination of antimony (Ⅲ) were discussed. 0.5 mL of 1.0×10-6 mol/L DBAA ethanol solution was added to 10 mL colorimetric tube with stopper, then 2.0 mL of potassium hydrogen phthalate buffer solution at pH 4.00, 3.0 mL of absolute ethanol and certain amount of antimony standard solution was added successively. After reaction at room temperature for 20 min, the solution was determined at excitation wavelength λex=338 nm and emission wavelength λem=402 nm. The results showed that the mass concentration of antimony (Ⅲ) in range of 0-60 μg/L had good linear relationship with its corresponding fluorescence quenching degree. The correlation coefficient was 0.997 8. The detection limit of method was 0.2 μg/L. The proposed method was applied to the determination of trace antimony(Ⅲ) in some water samples including tap water and lake water. The results were basically consistent with those obtained by flame atomic absorption spectrometry(FAAS). The relative standard deviations (RSD, n=6) were between 2.6% and 4.3%.
何立芳,张夏红,马志文. 对二甲氨基苯甲醛缩邻氨基苯甲酸与锑的荧光猝灭反应及其应用[J]. 冶金分析, 2016, 36(12): 55-58.
HE Li-fang,ZHANG Xia-hong,MA Zhi-wen. Fluorescence quenching reaction of 4-dimethylaminobenzaldehyde-anthranilic acid with antimony(Ⅲ) and its application. , 2016, 36(12): 55-58.
张亚平,张婷,陈锦芳,等.水、土环境中锑污染与控制研究进展[J].生态环境学报,2011,18(9):1373-1378.ZHANG Ya-ping,ZHANG Ting,CHEN Jin-fang,et al.Research progress on present situation and countermeasure of antimony pollution in water and soil environment[J].Ecology and Environmental Sciences,2011,18(9):1373-1378.
[2]
朱静,郭建阳,王立英,等.锑的环境地球化学研究进展概述[J].地球与环境,2010,38(1):109-116.ZHU Jing,GUO Jian-yang,WANG Li-ying,et al.Overview on research on environmentally geochemical characteristics of antimony[J].Earth and Environment,2010,38(1):109-116.
[3]
LIU Jianning,ZHANG Bing,WU Bowan,et al.Spectrofluorimetric determination of trace amounts of cadmium with 2,4-dihydroxyacetophenone benzoylhydrazone[J].Rare Metals,2006,25(2):184-189.
[4]
Sandor M,Geistmann F,Schuster M.An anthracene-substituted benzoylthiourea for the selective determination of Hg in micellar media[J].Analytica Chimica Acta,1999,388(1/2):19-26.
[5]
Rahman M S.Quenchofluorimetric determination of mercury trace with murexide[J].Microchimca Acta,2001,137(3):203-207.
[6]
YANG Ronghua,LI Kean,WANG Kemin,et al.Cyclodextrin-porphyrin supramolecular sensitizer for mercury ion[J].Analytica Chimica Acta,2002,469(2):285-293.
[7]
李惠成,仵博万,张兵,等.水杨醛2-羧基苯腙与汞的荧光反应及应用[J].分析测试学报,2008,27(1):91-93.LI Hui-cheng,WU Bo-wan,ZHANG Bing,et al.Fluorescence reaction of salicyladehyde-2-carboxy-phenylhydrazone with mercury ions and its application[J].Journal of Instrumental Analysis,2008,27(1):91-93.
[8]
李惠成,仵博万,张克钧,等.对羟基苯甲醛缩邻氨基苯甲酸与汞的荧光猝灭反应及其应用[J].分析测试学报,2010,29(4):415-417.LI Hui-cheng,WU Bo-wan,ZHANG Ke-jun,et al.Fluorescence quenching reaction of 4-hydroxybenzaldehyde-anthranilic acid with mercury ions and its application[J].Journal of Instrumental Analysis,2010,29(4):415-417.
[9]
白延涛,高楼军,柴红梅,等.桑色素荧光猝灭法测定水中微量锑[J].分析试验室,2014,33(4):452-454.BAI Yan-tao,GAO Lou-jun,CHAI Hong-mei,et al.Determination of antimony in water by fluorescence quenching method with morin[J]. Chinese Journal of Analysis Laboratory,2014,33(4):452-454.
[10]
吴明智.火焰原子吸收光谱法测量污水中锑量的测量不确定度评定[J].化学工程师,2008(1):26-29.WU Ming-zhi.Evaluation of the uncertainty of measurement of antimony in sewage by FAAS[J].Chemical Engineer,2008(1):26-29.
