A measuring system for the time variation of size and charge of a single spherical particle and its applications

Nakajima, Yoji

doi:10.1016/j.ces.2005.05.004

Cited by 4 publications

(1 citation statement)

References 37 publications

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“…Basing on the oil droplet experiment, the electrodynamic balance (EDB) had been used to capture and levitate a single particle in an electric field. Through this original study, many investigations as well as physical and chemical properties of single particle had been measured and demonstrated by utilizing different kinds of levitating technique such as electrostatic trapping, acoustic balance, and optical levitation (Millikan, 1935;Richardson et al, 1989;Davis and Bridges, 1994;Davis, 1997;Peng and Chan, 2001;Haddrell et al, 2005;Jarzembski and Tankosic, 2005;Mitchem et al, 2006;Nakajima, 2006;Tsai, 2007;Chan and Chan, 2007;Kelly et al, 2008;Kawamoto, 2009;Reid, 2009;Wills et al, 2009;Knox et al, 2010;Zaitone and Tropea, 2011;Davies et al, 2012;Haddrell et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Measurement and Evaluation of Elastic Light Scattering from a Single Levitated Irregular Particle

Kao

Huang

Chen

et al. 2017

Aerosol Air Qual. Res.

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This study introduced a convenient experimental method to measure and to evaluate the elastic light scattering from a single irregular particle. The particle levitation system was used to trap a particle and to maintain the particle at null position by utilizing electrodynamic balance. Moreover, the Raman spectroscopy was applied to observe the light scattering of a single particle. The influences of relative humidity on optical properties of particle were also discussed. For comparison with experimental results, the classical Lorenz-Mie theory was employed to compute the phase function of a single particle. The experimental results demonstrated that the measurements of light scattering were in approximate trend with the model. In particular, numerical simulation results showed that the scattering intensity was underestimated in backward scattering directions. Consequently, the effect of surface roughness and irregular morphology of particle might be resulted in deviations of backward scattering. Besides, the experiments suggested that while using the weighted average method to estimate the refractive index might cause some significant deviations of light scattering between measuring and modeling.

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Section: Introductionmentioning

confidence: 99%

Measurement and Evaluation of Elastic Light Scattering from a Single Levitated Irregular Particle

Kao

Huang

Chen

et al. 2017

Aerosol Air Qual. Res.

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Current Electrospray Mass Spectrometry: an Overview. Part A. Analyte Atomization

Verkerk

2015

Encyclopedia of Analytical Chemistry

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Electrospray ionization (ESI) is an atomization and ionization method through which a solution‐phase analyte can be transferred via minute charged droplets into the gas‐phase as an ion. The first part of this two‐part review on electrospray mass spectrometry considers the formation of these minute charged droplets. Atomization of liquids can take place through mechanical or electrostatic breakup of a liquid jet. In the absence of an electric field, charged droplets of both polarities are formed because of the disruption of the electrical double layer at the air–water interface. Addition of an electric field results in the formation of charged droplets of a single polarity. At sufficiently high electric field strength, mechanical jet disruption is replaced by electrostatic jet disruption giving the highest yield of charged droplets; this is the commonly used conductive DC electrospray. More recent means of forming charged droplets by DC or AC electric fields are discussed in the following sections. Mechanisms for reducing the droplet electrostatic stress such as droplet fragmentation are reviewed in the final section. These processes form the basis for the creation of charged gas‐phase analytes that is described in Current Electrospray Mass Spectrometry: an Overview. Part B. Analyte Charging.

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Electrostatic characterization of electrohydrodynamic atomization process for particle fabrication

Zhao

2017

Powder Technology

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A measuring system for the time variation of size and charge of a single spherical particle and its applications

Cited by 4 publications

References 37 publications

Measurement and Evaluation of Elastic Light Scattering from a Single Levitated Irregular Particle

Measurement and Evaluation of Elastic Light Scattering from a Single Levitated Irregular Particle

Current Electrospray Mass Spectrometry: an Overview. Part A. Analyte Atomization

Electrostatic characterization of electrohydrodynamic atomization process for particle fabrication

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