On-line particle concentrator with upstream ultrafiltration in continuous SPLITT fractionation
SCIE
SCOPUS
- Title
- On-line particle concentrator with upstream ultrafiltration in continuous SPLITT fractionation
- Authors
- Moon, MH; Kang, DJ; Lee, DW; Chang, YS
- Date Issued
- 2001-02-01
- Publisher
- AMER CHEMICAL SOC
- Abstract
- An upstream ultrafiltration (UU) method is employed for the on-line concentration of collected particle fraction and for the convenient regulation of flow rates in split-now thin (SPLITT) fractionation. Concentration of the collected particle fraction is necessary to fractionate particles by smaller cutoff diameters in SPLITT fractionation. By introducing a simple device utilizing upstream ultrafiltration with tangential now, particle solution collected at each SPLITT outlet can be simultaneously concentrated within the device during the run without the need of a separate centrifugation. Since a needle valve can be implemented at the outlet of the particle concentrator using upstream ultrafiltration (PCUU), it provides a great convenience with an accuracy in adjusting outlet now rates of the SPLITT channel, and it eventually brings accurate control of cutoff diameter in SPLITT fractionation of a nnicrometersized particle sample. Moreover, the volume of carrier solution required for SPLITT fractionation, especially for a high-speed SPLITT run, can be minimized by circulating the filtrate solution of PCUU into the carrier reservoir directly. The advantage of on-line particle concentration is demonstrated by utilizing a slow flow feed technique for the fractionation of an incinerator fly ash particle sample to obtain a highly efficient SPLITT separation.
- Keywords
- SEPARATION
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/19695
- DOI
- 10.1021/ac0009550
- ISSN
- 0003-2700
- Article Type
- Article
- Citation
- ANALYTICAL CHEMISTRY, vol. 73, no. 3, page. 693 - 697, 2001-02-01
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- There are no files associated with this item.
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