Analytical applications of photon correlation spectroscopy for size distribution measurements of natural colloidal suspensions: Capabilities and limitations

被引：106

作者：

Filella, M ^{[1
]}

Zhang, JW ^{[1
]}

Newman, ME ^{[1
]}

Buffle, J ^{[1
]}

机构：

[1] UNIV GENEVA,DEPT INORGAN ANALYT & APPL CHEM,CH-1211 GENEVA 4,SWITZERLAND

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1997年 / 120卷 / 1-3期

关键词：

aquatic colloids; dynamic light scattering; particle size determination; photon correlation spectroscopy; submicron particles;

D O I：

10.1016/S0927-7757(96)03677-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Particles are ubiquitous in all natural systems and play an important role in the control and fate of nutrients and pollutants. Currently, only limited information is available concerning particle number and size distributions, owing to the problems involved in their experimental determination. In the present paper, limitations and optimal conditions for particle size determinations of environmental samples using photon correlation spectroscopy are studied. The detection limit, the effects of polydispersity of the sample and the refractive index value are discussed based on results obtained with synthetic colloids. The photon correlation spectroscopic determination of particle size distributions in real aquatic systems is also presented in the second part of the paper.

引用

页码：27 / 46

页数：20

共 68 条

[21] COLLOIDS IN WATER FROM A SUBSURFACE FRACTURE IN GRANITIC ROCK, GRIMSEL TEST SITE, SWITZERLAND [J].