SPECTROPHOTOMETRIC DETERMINATION OF THE SUM OF RARE EARTH ELEMENTS BY FLOW-INJECTION ON-LINE PRECONCENTRATION WITH A NOVEL AMINOPHOSPHONIC–CARBOXYLIC ACID RESIN

REFERENCES

• Kantipuly , C.J. and Westland , A.D. 1988 . Review of Methods for the Determination of Lanthanides in Geological Samples . Talanta , 35 ( 1 ) : 1 – 13 .
   PubMed Web of Science ®Google Scholar
• Fang , Z.L. 1993 . Flow Injection Separation and Preconcentration Weiheim : VCH .
   Google Scholar
• Maquieria , A. , Elmahadi , H. and Puchades , R. 1996 . Preconcentration and Determination of Some Lanthanide Elements with Immobilized Bacteria by Flow-Injection Inductively Coupled Plasma Atomic-Emission Spectrometry . J. Anal. At. Spectrom. , 11 ( 2 ) : 99 – 106 .
   Google Scholar
• Liang , Y.Z. and Yin , N.W. 1995 . Online Separation and Preconcentration FIA ICP AES System for Simultaneous Determination of REE and Yttrium in Geological Samples . At. Spectrosc. , 16 ( 6 ) : 243 – 247 .
   Google Scholar
• Grebneva , O.N. , Kuz'min , N.M. , Tsysin , G.I. and Zolotov , Yu.A. 1996 . Online Sorption Preconcentration and Inductively Coupled Plasma Atomic-Emission Spectrometry Determination of Rare-Earth Elements . Spectrochim. Acta Part B , 51 ( 11 ) : 1417 – 1423 .
   Google Scholar
• Yan , X.P. , Kerrich , R. and Hendry , M.J. 1999 . Flow Injection On-Line Group Preconcentration and Separation of (Ultra) Trace Rare Earth Elements in Environmental and Geological Samples by Precipitation Using a Knotted Reactor as a Filterless Collector for Inductively Coupled Plasma Mass Spectrometric Determination . J. Anal. At. Spectrom. , 14 ( 2 ) : 215 – 221 .
   Google Scholar
• Shabani , M.B. , Akagi , T. and Masuda , A. 1992 . Preconcentration of Trace Rare-Earth Elements in Seawaters by Complexation with Bis(2-Ethylhesyl) Hydrogen Phosphonate and 2-Ethylhexyl Dihydrogen Phosphonate Adsorbed on a C18 Cartridge and Determination by Inductively Coupled Plasma Mass Spectrometry . Anal. Chem. , 64 ( 7 ) : 737 – 743 .
   Google Scholar
• Halicz , L. , Gavrieli , I. and Dorfman , E. 1996 . On-Line Method for Inductively Coupled Plasma Mass Spectrometry Determination of Rare Earth Elements in Highly Saline Brines . J. Anal. At. Spectrom. , 11 ( 9 ) : 811 – 814 .
   Google Scholar
• Lobinski , R. and Marczenko , Z. 1992 . Recent Advances in Ultra-Violet-Visible Spectrophotometry . Crit. Rev. Anal. Chem. , 23 ( 1–2 ) : 55 – 111 .
   Web of Science ®Google Scholar
• Bohrer , D. , Gioda , A. , Binotto , R. and do Nascimento , P.C. 1998 . On-Line Separation and Spectrophotometric Determination of Low Levels Of Aluminium in High Salt Content Samples: Application to Analysis of Hemodialysis Fluids . Anal. Chim. Acta , 362 ( 2–3 ) : 163 – 169 .
   Google Scholar
• Purohit , R. and Devi , S. 1997 . Determination of Nanogram Levels of Zirconium by Chelating Ion Exchange and On-Line Preconcentration in Flow Injection UV-Visible Spectrophotometry . Talanta , 44 ( 3 ) : 319 – 326 .
   PubMed Web of Science ®Google Scholar
• Hayashibe , Y. and Sayama , Y. 1996 . Determination of Trace Amounts of Cadmium in a Hydrometallurgical Zinc Refining Process Stream by a Flow-Injection Method with On-line Preconcentration and Spectrophotometric Detection . Analyst , 121 ( 1 ) : 7 – 11 .
   Google Scholar
• Guo , Y.H. , Zhao , X.L. and Liu , C.M. 1996 . Multielemental Analysis of Rare Earths by Inductively Coupled Plasma Atomic Emission Spectrometry with Preconcentration on Aminocarboxyl Acid Cellulose Filter Column . Fenxi Huaxue , 24 ( 3 ) : 341 – 343 .
   Google Scholar
• Zhan , G.Y. , Su , Z.X. , Luo , X.Y. and Chang , X.J. 1992 . Efficiency of Macroporous Poly (Vinylphosphonamidic Acid) Resin Adsorbing of Selected Elements and Determination of Trace Dysprosium, Holmium, Erbium and Ytterbium in Waste Water by Inductively Coupled Plasma Optical Emission Spectrometry . Anal. Lett. , 25 ( 3 ) : 561 – 572 .
   Google Scholar
• Chang , X.J. , Su , Z.X. , Zhang , G.Y. , Luo , X.Y. and Xu , Z. 1990 . Study on the Performance and Mechanism of Enriching and Separating Trace Au, Pt, Pd And Ir by Using Macroporous Chelate Resin Based on Ethylenediamine Modified PVC . Huaxue Xuebao , 48 ( 2 ) : 157 – 161 .
   Google Scholar
• Ohyoshi , E. 1983 . Spectrophotometric Determination of Complex Formation Constants by Estimation of Free Ligand Concentration . Anal. Chem. , 55 ( 14 ) : 2404 – 2407 .
   Google Scholar
• Gladilovich , D.B. , Kuban , V. and Sommer , L. 1988 . Determination of the Sum of Rare-Earth Elements by Flow-Injection Analysis with Arsenazo III, 4-(2-Pyridylazo) Resorcinol, Chrome Azurol S and 5-Bromo-2-(2-Pyridylazo)-5-Diethylaminophenol Spectrophotometric Reagents . Talanta , 35 ( 4 ) : 259 – 265 .
   PubMedGoogle Scholar
• Yeh , S.J. , Tsai , C.S. and Yang , H.T. 1995 . Determination of Trace Amounts of Rare-Earth Elements by Neutron-Activation Analysis After Precipitation Using Hydrated Magnesium Oxide . J. Radioanal. Nucl. Chem. , 192 ( 1 ) : 163 – 170 .
   Google Scholar