共 187 条
[51]
Shariati S(2010)Solid phase extraction of thorium on multiwalled carbon nanotubes prior to UV-Vis spectrophotmetric determination in ore samples J Braz Chem Soc 68 1047-1064
[52]
Yamini Y(2002)A new coprecipitation method without carrier element for separation and preconcentration of some metal ions at trace levels in water and food samples Anal Lett 176 119-124
[53]
Zanjani MK(2003)Column chromatographic preconcentration of copper, nickel and iron in ammonium salts by graphite furnace atomic absorption spectrometry Radiochim Acta undefined undefined-undefined
[54]
Singh BN(2006)A new ultrasonic-assisted cloud-point extraction procedure for pre-concentration and determination of ultra-trace levels of copper in selected beverages and foods by flame atomic absorption spectrometry Talanta undefined undefined-undefined
[55]
Maiti B(2010)Determination of uranium in tap water by ICP-MS J Hazard Mater undefined undefined-undefined
[56]
Sadeghi S(undefined)Pre-concentration and determination of trace uranium(VI) in environments using ion-imprinted chitosan resin via solid phase extraction undefined undefined undefined-undefined
[57]
Sheikhzadeh E(undefined)Solid phase extractive preconcentration of uranium on to 5, 7-dichloroquinoline-8-ol modified naphthalene undefined undefined undefined-undefined
[58]
Starvin AM(undefined)Preparation of 1-(2-pyridylazo)-2-naphthol functionalized benzophenone/naphthalene and their uses in solid phase extractive preconcentration/separation of uranium (VI) undefined undefined undefined-undefined
[59]
Rao TP(undefined)Preconcentration techniques for uranium(VI) and thorium(IV) prior to analytical determination—an overviewç undefined undefined undefined-undefined
[60]
Zhai Y(undefined)Solid phase extraction of uranium(VI) onto benzoylthiourea-anchored activated carbon undefined undefined undefined-undefined