Implementation of splitter-less SPLITT fractionation and its application to large scale-fractionation of sea sediment

Lee, Seungho; Lee, Tae Woo; Cho, Sung Kwang; Kim, Sun Tae; Kang, Dong Yong; Kwen, Hai-Doo; Lee, Sung Kwang; Eum, Chul Hun

doi:10.1016/j.microc.2009.08.005

Cited by 11 publications

(9 citation statements)

References 24 publications

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“…Thus, the FE values for the fraction-b's were significantly lower than those for the fraction-a's. This was somewhat expected by the absence of inlet-b′ in the FFD mode [11,12,33,34]. In order to increase FE in fraction-b, the collected fractionb was fed again through inlet-a′, yielding Bfraction-ba^and Bfraction-bb.^This was repeated three times in total, yielding Bfraction-bba,^Bfraction-bbb,^Bfraction-bbba,^and Bfraction-bbbb.^At the end, fractions-a, -ba, -bba, and -bbba were mixed together to make Btotal fraction-a.^Table 1 shows the summary of FE and the average size (d avg ) measured for each fraction.…”

Section: Size Fractionation By a Large-scale Ffd-sfmentioning

confidence: 76%

“…Thermogravimetric curves were recorded on the EXSTAR 6000 Thermal Analysis System equipped with the Muse Standard Fig. 1 Channel assemblies of the large-scale FFD-SF used in this study [12] Analysis Software, version 6.4 (SII Nano Technology Inc., Chiba, Japan). The onset (T o ), peak (T p ), and conclusion (T c ) temperatures and enthalpy of gelatinization on starch dry weight basis (ΔH) were determined.…”

Section: Differential Scanning Calorimetrymentioning

confidence: 99%

“…SF fractionation is based on the size and the density of the samples, which are combined in the definition of cutoff diameter ( d c ). In the FFD mode of SF (FFD-SF), d c is given by [12, 15]…”

Section: Theorymentioning

confidence: 99%

“…Split-flow thin cell fractionation (SF) is an interesting technique that has been shown to be a useful tool for large-scale fractionation of particulate samples with broad size distributions into two subpopulations based on the size or density of the samples [11,12]. SF has some advantages over other particle fractionation methods, such as static sedimentation and membrane filtration.…”

Section: Introductionmentioning

confidence: 99%

“…In contrast, the FFD-SF mode has only one inlet for sample feeding (inlet-a′) and two outlets (outlets-a, and -b). In addition, an FFD-SF channel could be built in much larger dimensions than a conventional SF channel because it is possible to construct without splitters, allowing substantially higher sample throughput (TP) [11,12].…”

Section: Introductionmentioning

confidence: 99%

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Fractionation and characterization of starch granules using field-flow fractionation (FFF) and differential scanning calorimetry (DSC)

et al. 2019

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Starch is one of the main carbohydrates in food; it is formed by two polysaccharides: amylose and amylopectin. The granule size of starch varies with different botanical origins and ranges from less than 1 μm to more than 100 μm. Some physicochemical and functional properties vary with the size of the granule, which makes it of great interest to find an efficient and accurate size-based separation method. In this study, the full-feed depletion mode of split-flow thin cell fractionation (FFD-SF) was employed for a size-based fractionation of two types of starch granules (corn and potato) on a large scale. The fractionation efficiency (FE) of fraction-a for corn and potato granules was 98.4 and 99.4%, respectively. The FFD-SF fractions were analyzed using optical microscopy (OM) and gravitational field-flow fractionation (GrFFF). The respective size distribution results were in close agreement for the corn starch fractions, while they were slightly different for the potato starch fractions. The thermal properties of FFD-SF fractions were analyzed, and the results for the potato starch showed that the peak temperature of gelatinization (T p) slightly decreases as the size of the granules increases. Additionally, the enthalpy of gelatinization (ΔH) increases when the granule size increases and shows negative correlation with the gelatinization range (ΔT).

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Section: Size Fractionation By a Large-scale Ffd-sfmentioning

confidence: 76%

Section: Differential Scanning Calorimetrymentioning

confidence: 99%

Section: Theorymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fractionation and characterization of starch granules using field-flow fractionation (FFF) and differential scanning calorimetry (DSC)

et al. 2019

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Fractionation and characterization of nano- and microparticles in liquid media

et al. 2011

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Submicron and micron particles present in liquid environmental, biological, and technological samples differ in their dimensions, shape, mass, chemical composition, and charge. Their properties cannot be reliably studied unless the particles are fractionated. Synthetic particles applied as components of analytical systems may also need preliminary fractionation and investigation. The review is focused on the methods for fractionation and characterization of nanoparticles and microparticles in liquid media, the most representative examples of their application, and the trends in developing novel approaches to the separation and investigation of particles. Among the separation techniques, the main attention is devoted to membrane filtration, field-flow fractionation, chromatographic, and capillary electrokinetic methods. Microfluidic systems employing the above-mentioned and other separation principles and providing a basis for the fabrication of lab-on-chip devices are also examined. Laser light scattering methods and other physical techniques for the characterization of particles are considered. Special attention is given to "hyphenated" techniques which enable the separation and characterization of particles to be performed in online modes.

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Mathematical modeling of full feed depletion split-flow lateral-transport thin self-adjustable channels (FFD-SPLITT-SA)

Szparaga

Kowalkowski

Buszewski

2018

Journal of Chromatography A

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Implementation of splitter-less SPLITT fractionation and its application to large scale-fractionation of sea sediment

Cited by 11 publications

References 24 publications

Fractionation and characterization of starch granules using field-flow fractionation (FFF) and differential scanning calorimetry (DSC)

Fractionation and characterization of starch granules using field-flow fractionation (FFF) and differential scanning calorimetry (DSC)

Fractionation and characterization of nano- and microparticles in liquid media

Mathematical modeling of full feed depletion split-flow lateral-transport thin self-adjustable channels (FFD-SPLITT-SA)

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