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- W2189066740 abstract "Separations of Pb(II), Ba(II), Mn(II), Cr(III), Ni(II), Cu(II), Hg(II), Zn(II), Fe(III) and Co(II) metal- pyrrolidinedithiocarbamate (PDC) complexes have been carried out using High Performance Liquid Chromatography (HPLC). Prior to the separations, chloroform and acetonitrile have been used to extract the metal complexes by solid phase extraction, using C18 bonded silica as sorbent. Phenyl bonded silica HPLC column was found suitable to separate metal-PDC complexes. The eluent was acetonitrile : water (66 : 34 ratio by volume) containing 1.5 x 10 -5 M ammonium pyrrolidinedithiocarbamate(APDC) at pH 5.6. The mixtures of metal-PDC complexes that successfully separated are Pb(II), Cr(III), Ni(II), Hg(II) or Cu(II), Zn(II), Fe(III) and Co(II). The separated components were detected by UV detector at 254 nm wavelength. The quantitative determination of NIST 1633a Coal Fly Ash Standard Reference Material (US Department of Commerce 1990) was carried out to validate the method developed. Abstrak. Pemisahan bagi Pb(II), Ba(II), Mn(II), Cr(III), Ni(II), Cu(II), Hg(II), Zn(II), Fe(III) dan Co(II) dalam bentuk kompleks logam-pirolidinditiokarbamat (PDC) telah dilakukan dengan kaedah Kromatografi Cecair Berprestasi Tinggi (KCBT). Sebelum pemisahan kromatografi, kloroform and asetonitril telah digunakan untuk mengekstraks logam-logam kompleks tersebut secara ekstraksi fasa pepejal, yang mana pengerapnya adalah silika terikat C18. Turus KCBT silika terikat fenil telah didapati sesuai untuk memisahkan kompleks logam-PDC. Pelarut elusi adalah asetonitril : air (nisbah 66:34 mengikut isipadu) mengandungi amonium pirolidinditiokarbamat (APDC) 1.5 x 10" @default.
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- W2189066740 date "2001-01-01" @default.
- W2189066740 modified "2023-09-26" @default.
- W2189066740 title "High performance Liquid Chromatographic separations of Metal- Pyrrolidine Dithiocarbamate Complexes" @default.
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