全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

激光光散射测量荧光/磷光体系溶液结构的原理和方法

DOI: 10.11777/j.issn1000-3304.2015.14371, PP. 564-570

Keywords: 激光光散射,荧光/磷光,荧光关联光谱,准弹性散射

Full-Text   Cite this paper   Add to My Lib

Abstract:

通过对商业化激光光散射谱仪改造升级,以4种不同波长的激光785、632.8、532和457nm作为独立光源,可以根据不同的荧光体系选择不同的入射激光,有效避免荧光、磷光对散射光信号的干扰,从而使激光光散射谱仪能用于荧光/磷光等吸光材料溶液结构的测定.非荧光和荧光聚苯乙烯小球标准样品的测定都验证了改造后仪器测量结果的准确性和精确性.实验结果表明,当荧光体系对入射光有吸收时,动态光散射的相关函数与静态光散射得到的均方回转半径都不能反映荧光样品的真实溶液结构,此时的结果只能作为定性参考,只有选择样品无吸收的入射光波长,符合(准)弹性散射时,所测结果才能反映样品的真实结构.单分子荧光谱仪的对照实验证实了改造光散射谱仪的正确性与必要性.

References

[1]  1 Chu B.Dynamic Light Scattering,in Soft Matter Characterization. In:Borsali R,Pecora R,ed.Netherlands:Springer,2008.335~372
[2]  2 Wu C,Zhou S Q.Phys Rev Lett,1996,77(14):3053~3055
[3]  3 Cheng H,Shen L,Wu C.Macromolecules,2006,39(6):2325~2329
[4]  4 Liu M Z,Cheng R S,Wu C.Eur Polym J,1999,35(10):1907~1910
[5]  5 Wu C,Zhou S Q.Macromolecules,1997,30(3):574~576
[6]  6 Gao Jun(高均),Wu Chi(吴奇).Acta Polymerica Sinica(高分子学报),1997,(3):324~330
[7]  7 Zuo Ju(左榘),Niu Aizhen(牛爱珍),An Yingli(安英丽),He Binglin(何炳林),Ran Shaofeng(冉少峰),Liang Dehai(梁德海).Acta Polymerica Sinica(高分子学报),1998,(4):419~423
[8]  8 Xu Jiankuan(徐建宽),He Zhimin(何志敏),Zuo Ju(左榘),Acta Polymerica Sinica(高分子学报),2002,(1):58~62
[9]  9 Zhou C L,Zhao Y,Jao T C,Wu C,Winnik M A.J Phys Chem B,2002,106(37):9514~9521
[10]  10 Cheng H,Wu C,Winnik M A.Macromolecules,2004,37(13):5127~5129
[11]  11 Wu C,Zhou S Q.Macromolecules,1996,29(5):1574~1578
[12]  12 Dai Z J,Ngai T,Wu C.Soft Matter,2011,7(9):4111~4121
[13]  13 Jin F,Wu C.Phys Rev Lett,2006,96(23):237801
[14]  14 Wu C,Li LW.Polymer,2013,54(5):1463~1465
[15]  15 Li J F,Li W,Huo H,Luo S Z,Wu C.Macromolecules,2008,41(3):901~911
[16]  16 Li J F,Ngai T,Wu C.Polym J,2010,42(8):609~625
[17]  17 Zhao Y,Liang H J,Wang S G,Wu C.J Phys Chem B,2001,105(4):848~851
[18]  18 Zhang G Z,Winnik F M,Wu C.Phys Rev Lett,2003,90(3):035506
[19]  19 Yan J J,Ji W X,Chen E Q,Li Z C,Liang D H.Macromolecules,2008,41(13):4908~4913
[20]  20 Chu B.Laser Light Scattering:Basic Principles and Practice.Boston:Academic Press,1991.34~61
[21]  21 Han C C,Akcasu A Z.Plane Waves,Scattering,and Polymers,in Scattering and Dynamics of Polymers.Singapore:John Wiley & Sons (Asia) Pte Ltd,2011.1~26
[22]  22 Huang Y,Cheng H,Han C C.Macromolecules,2010,43(23):10031~10037
[23]  23 Huang Y,Cheng H,Han C C.Macromolecules,2011,44(12):5020~5026
[24]  24 Wei G M,Yao D D,Li Z Y,Hu Y,Cheng H,Han C C.Macromolecules,2013,46(3):1212~1220
[25]  25 Han C C,Akcasu A Z.Fluctuations,Correlation,and Static/Dynamic Scattering,in Scattering and Dynamics of Polymers.Singapore:John Wiley & Sons (Asia) Pte Ltd,2011.27~102

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133