在pH =5.4的Britton-Robinson (BR)缓冲溶液中,农药敌磺钠(FM)与吖黄素(AF)相互作用,形成离子缔合物,导致吖黄素溶液的荧光猝灭.当分别于最大激发波长和最大发射波长(λex/λem) 451 nm/508 nm测量时,荧光猝灭值(△F)与敌磺钠浓度在0.16 ～5.0 mg/L范围内呈良好的线性关系,检出限为0.048 mg/L.据此建立了一种测定敌磺钠的荧光分析新方法.该方法操作简单、灵敏度高、选择性好,用于敌磺钠农药以及土壤中敌磺钠残留检测,结果满意.还研究了反应体系的荧光特性,并结合量子化学AM1计算对荧光猝灭机理进行了讨论.
参考文献
| [1] | Liman R,Cigerci I H,Akyil D,et al.Determination of Genotoxicity of Fenaminosulf by Allium and Comet Tests[J].Pestic Biochem Phys,2011,99(1):61-64. |
| [2] | Zweig G.Analytical Methods for Pesticides,Plant Growth Regulators and Food Additives[M].New York:Academic Press,1964,3:49. |
| [3] | QIAN Chuanfan,SHAN Guomin,WEI Guoping,et al.Study on Formulation Analysis of Fenaminosuif by TLC-Colorimetry[J].J Agric Univ,1993,19(4):57-60(in Chinese).钱传范,单国民,卫国平,等.敌磺钠(敌克松)薄层比色分析方法研究[J].中国农业大学学报,1993,19(4):57-60. |
| [4] | QIAN Chuanfan,JIA Minghong,SHAN Guomin,et al.Study on Formulation Analysis of Fenaminosulf by Ionpair HPLC[J].J Agric Univ,1994,20(1):64-67 (in Chinese).钱传范,贾明宏,单国民,等.敌磺钠离子对高效液相色谱分析方法研究[J].中国农业大学学报,1994,20(1):64-67. |
| [5] | Li Y,Kuwabara H,Gong Y K,et al. Resonance Energy Transfer from Dibucaine to Acriflavine in Polystyrene Latex Dispersions[J].Photochem Photobiol B,2003,70 (3):171-176. |
| [6] | Liu S P,Chen S,Hu X L,et al.Fluorescence Quenching Method for the Determination of Sodium Carboxymethyl Cellulose with Acridine Yellow or Acridine Orange[J].Spectrochim Acta,Part A,2006,64(4):817-822. |
| [7] | XU Hong,HUANG Yali,LIU Hong.Determination of Heparin by Resonance Rayleigh Scattering Method with Acriflavine Hydrochloride[J].Chem Res Appl,2010,22 (9):1170-1173 (in Chinese).徐红,黄亚励,刘红.吖黄素盐酸盐-肝素体系的共振瑞利散射光谱及其分析应用[J].化学研究与应用,2010,22(9):1170-1173. |
| [8] | XU Jingou,WANG Zunben.Spectrofluorimetry[M].3 nd Edn.Beijing:Science Press,2006:64-69 (in Chinese).许金钩,王尊本.荧光分析法[M].第3版.北京:科学出版社,2006:64-69. |
| [9] | Zhu J,Li J J,Zhao J W.Spectral Characters of Rhodamine B as a Multi-information Fluorescence Probe for Bovine Serum Albumins[J].Sens Actuators,B,2009,138(1):9-13. |
| [10] | Fenaminosulf Technicalmaterial.Chemical Industry Standard of the People's Republic of China[S].HG 2318-1992 (in Chinese).敌磺钠(敌克松)湿粉.中华人民共和国化工行业标准[S]. HG 2318-1992. |
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