Dynamic range multiwavelength particle characterization using analytical ultracentrifugation.
Dynamic range multiwavelength particle characterization using analytical ultracentrifugation.
复制标题
使用分析超速离心进行动态范围多波长颗粒表征
DOI:
10.1039/c5nr08547k
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发表时间:
2016
期刊:
影响因子:
6.7
通讯作者:
W. Peukert
中科院分区:
文献类型:
--
作者:
J. Walter;W. Peukert
We demonstrate how a sophisticated data analysis methodology enables us to perform multiwavelength evaluations of dynamic rotor speed gradient experiments obtained by analytical ultracentrifugation equipped with a multiwavelength detector. Our data evaluation tool HDR-MULTIFIT allows for the accurate analysis of sedimentation coefficient distributions which can be converted to particle size distributions. By means of multiwavelength evaluation, species dependent extinction spectra can be determined even for complex mixtures. Moreover, optical and hydrodynamic properties can be correlated for spherical particles of known optical properties applying multiwavelength evaluation and Mie's theory leading to a significant increase in the dynamic range of the experiment. We provide the theoretical background about the operation principle of our methodology and compare the performance of the multiwavelength analysis to the conventional single wavelength analysis as it is applied in turbidity analysis. We validate our technique using NIST traceable reference particles and show that our technique is universally applicable to materials of known and unknown optical properties, thus clearly extending the possibilities of particle analysis.
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影响因子:
17.1
作者:
Walter, Johannes;Loehr, Konrad;Coelfen, Helmut
通讯作者:
Coelfen, Helmut
影响因子:
7.4
作者:
Demeler, Borries;Tich-Lam Nguyen;Gorbet, Gary E.;Schirf, Virgil;Brookes, Emre H.;Mulvaney, Paul;El-Ballouli, Ala'a O.;Pan, Jun;Bakr, Osman M.;Demeler, Aysha K.;Uribe, Blanca I. Hernandez;Bhattarai, Nabraj;Whetten, Robert L.
通讯作者:
Whetten, Robert L.
DOI:
10.1007/b137083
发表时间:
2006-03
期刊:
--
影响因子:
--
作者:
W. Maechtle
通讯作者:
W. Maechtle
DOI:
--
发表时间:
1972
期刊:
影响因子:
--
作者:
W. Scholtan;H. Lange
通讯作者:
H. Lange
影响因子:
7.4
作者:
J. Walter;P. Sherwood;Wei Lin;D. Segets;W. Stafford;W. Peukert
通讯作者:
J. Walter;P. Sherwood;Wei Lin;D. Segets;W. Stafford;W. Peukert