Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Joanna Shaofen Wang"'
Autor:
Joanna Shaofen Wang, KongHwa Chiu
Publikováno v:
Microchimica Acta. 167:61-65
Heavy metal ions including Co(II), Cd(II), Cu(II), Pb(II), Zn(II), Eu(III), La(III), and Sr(II) were extracted from solid matrices by using a water-in-CO2 microemulsion composed of sodium bis-(2-ethylhexyl) sulfosuccinate and a nontoxic perfluoropoly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73f4410bbfbef5f287f1ef49f6f16663
https://doi.org/10.1007/s00604-009-0215-6
https://doi.org/10.1007/s00604-009-0215-6
Autor:
Kong-Hwa Chiu, Joanna Shaofen Wang
Publikováno v:
Chemosphere. 75:629-633
PCBs exhibit a wide range of toxic effects, and they are very stable compounds and do not degrade readily. Although they had been banned in the 1970s; however; it is still urgent to investigate and develop a financially viable, environmentally benign
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7de364f98e6eb6cc364ca9921cabd721
https://doi.org/10.1016/j.chemosphere.2009.01.018
https://doi.org/10.1016/j.chemosphere.2009.01.018
Publikováno v:
The Journal of Physical Chemistry C. 112:2294-2297
Gold and platinum nanoparticles were prepared using a reverse micelle technique, creating products with several particle sizes. The stabilized metal nanoparticles can be deposited over long-range distances forming ordered arrays using supercritical c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5c0eab27f3a7be2b7d36f7519d12a0e8
https://doi.org/10.1021/jp7098703
https://doi.org/10.1021/jp7098703
Autor:
Joanna Shaofen Wang, Kong-Hwa Chiu
Publikováno v:
Analytical Sciences. 23:1337-1341
Supercritical fluid extraction (SFE) provides an environmentally green technique to decontaminate chromium species from solid matrices using supercritical fluid carbon dioxide (ScCO2). Methanol and a small amount of water were found to significantly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5df231b7603306440f75f165b882d309
https://doi.org/10.2116/analsci.23.1337
https://doi.org/10.2116/analsci.23.1337
Autor:
Chien M. Wai, Joanna Shaofen Wang
Publikováno v:
The Journal of Supercritical Fluids. 40:176-182
Metal species including Cd, Co, Cu, Pd and Zn can be extracted from solid materials using reverse micelles (microemulsions) formed by sodium bis(2-ethylhexyl)sulfosuccinate (AOT) and dissolved in supercritical carbon dioxide (ScCO 2 ) containing an a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e613782658f72fc92d3b446e3977a2b2
https://doi.org/10.1016/j.supflu.2006.06.003
https://doi.org/10.1016/j.supflu.2006.06.003
Publikováno v:
Journal of Nanoscience and Nanotechnology. 6:2025-2030
Carbon nanotube-supported metallic nanoparticles (Pd, Rh, and bimetallic Pd-Rh) with diameters in the range 2-10 nm can be synthesized by hydrogen reduction of metal ions dissolved in the water core of a CO 2 microemulsion in liquid CO 2 at room temp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fcc9521f01c7319893a5091818d6c73e
https://doi.org/10.1166/jnn.2006.367
https://doi.org/10.1166/jnn.2006.367
Publikováno v:
The Journal of Supercritical Fluids. 36:98-105
Solubility of hydrophilic organic acids in supercritical CO 2 (SC-CO 2 ) can be significantly increased utilizing a CO 2 -soluble Lewis base tri- n -butylphosphate (TBP) as a carrier. Solubilities of the acids carried by TBP are enhanced roughly by o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1e8edbb8748e8e4908c31bd11bedf14
https://doi.org/10.1016/j.supflu.2005.06.001
https://doi.org/10.1016/j.supflu.2005.06.001
Autor:
Chien M. Wai, Joanna Shaofen Wang
Publikováno v:
Industrial & Engineering Chemistry Research. 44:922-926
Precious metals including copper, gold, and palladium can be dissolved in supercritical CO2 by oxidation with HNO3 and subsequent chelation with hexafluoroacetylacetone to form CO2-soluble metal β-...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5058432a7fab9f8ce4a90ebd359ef9d8
https://doi.org/10.1021/ie040198m
https://doi.org/10.1021/ie040198m
Autor:
Joanna Shaofen Wang, KongHwa Chiu
Publikováno v:
Analytical Sciences. 20:841-846
A simultaneous extraction of Cr3+ and Cr6+ species in aqueous solution was developed. The extraction behaviors of ammonium pyrrolidinedithiocarbamate (APDC) for both Cr6+ and Cr3+ are carefully discussed in this report. X-ray diffraction and spectros
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b251a382a19ce7f2e42210856c5fb06e
https://doi.org/10.2116/analsci.20.841
https://doi.org/10.2116/analsci.20.841
Publikováno v:
Industrial & Engineering Chemistry Research. 43:1580-1585
Cobalt and other metals, spiked onto lab coats, can be removed by supercritical fluid carbon dioxide (SC-CO2) containing mixed chelating agents Cyanex 302 and dithiocarbamate, as well as by a water-in-CO2 microemulsion. The extraction efficiencies fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee8ef4585988415935ee2fdfb31cfa35
https://doi.org/10.1021/ie030509d
https://doi.org/10.1021/ie030509d