Summary
The determination of impurities in the concentration range down to about 0.1 mg/kg in rare earth compounds without chemical separation or preconcentration has been investigated by application of various multielement methods suitable for routine analysis. Mass spectrometry with a plasma ion source (ICP-MS) is most favourable for the determination of foreign rare earth elements (REE) and provides very low detection limits. It is also suitable for measuring a great number of non-REE. Atomic emission spectrometry in inductively coupled plasma (ICP-AES) is also applicable for many non-REE in the range of low concentrations, in particular for elements of low volatility. Flame atomic absorption spectrometry (FAAS) is preferable for alkali and alkaline earth elements, and voltammetry is well suited for the determination of low concentrations of Cu, Zn and Cd. X-ray fluorescence analysis (XRF) is applicable only in the range of concentrations higher than 1 to 10 mg/kg; it is well suited to give a survey of the presence of foreign elements in concentrations >10 mg/kg. Analytical data for 15 commercial REE compounds are presented and detection limits, selection of suitable analytical lines, advantages and disadvantages of the methods are discussed. The analytical data are compared with the specifications given by the suppliers.
Similar content being viewed by others
References
Gmelins Handbuch der Anorganischen Chemie. (1988) Springer, Berlin Heidelberg New York
Ullmanns Enzyklopädie der Technischen Chemie, 4 Aufl, Bd 2/5 Aufl, Bd 3 II. (1972/1985) VCH, Weinheim
Comstock MJ (1981) Industrial applications of rare earth elements. ACS Symposium Series 164. ACS, Reno Nevada
Reinststoffe in Wissenschaft und Technik. 3, 4 und 5 Internationales Symposium, Akademie der Wissenschaften der DDR. Dietz, Berlin 1975, 1977, 1980
Gschneidner KA, Eyring JL (eds) Handbook on the physics and chemistry of rare earths, Vol 1 (1978); Vols 2–4 (1979); Vol 5 (1982); Vols 6, 7 (1984); Vol 8 (1986); North Holland, Amsterdam
Lieser KH, Burkhardt S-R, Fey W (1990) Fresenius J Anal Chem 338:156
Tremblay ME, Smith BW, Winefordner JD (1987) Anal Chim Acta 199:111
Kichelsen OB (1973) Analysis and application of the rare earth materials. NATO Advanced Study Institute, Oslo
Möller P, Cerny P, Saupe F (1980) Lanthanides, tantalum and niobium, Springer, Berlin Heidelberg New York
Melard P (1980) Rare Earths Mod Sci Technol 2:517
Fey W (1991) Qualitätskontrolle handelsüblicher Verbindungen der Seltenen Erden (SE) und analytische Begleitung einer SE-Extraktionsplanung. Dissertation TH Darmstadt
Ryabchikov DI, Ryabukhin VA (1970) Analytical chemistry of the element yttrium and the lanthanides. Arbor-Humphrey Science, London
Irving HMNH, Frieser H, West TS (1977) Compendium of analytical nomenclature — definitive rules. Pergamon Press, Oxford
Quality assurance for the chemical and process industries. American Society for Quality Control, ASQC, Milwaukee, Wisconsin 1987
Long GL, Winefordner JD (1983) Anal Chem 55:712A
Ortner HM (1987) Ultrapurity in metallurgy — facts and fiction. Proc. of the 31st Conference of the EOQC, Dt. Ges. f. Qualität, München, p 443
Tyrek B (1985) Annual book of ASTM standard, Vol 0306
Proske O, Ensslin F (1966, 1980) In: Chemikerausschuß d. Ges. Dt. Metallhütten- und Bergleute eV (Hrsg) Analyse der Metalle. Springer, Berlin Heidelberg New York
Dickens P, Möhl K (1987) In: Chemikerausschuß des Vereins Dt. Eisenhüttenleute (Hrsg) Handbuch für das Eisenhüttenlaboratorium, Giesling, Düsseldorf
Brusdeylins A (1973) Chem Ztg 97:543
Cheng J-K (1984) Inorg Chem Acta 94:249
Neeb R, Henze G (1986) Elektrochemische Analytik. Springer, Berlin Heidelberg New York
Marczenko Z (1986) Separation and spectrometric determination of elements, 2nd Ed. Wiley, New York
Wang J (1986) Talanta 33:494
Shmanankova GI (1981) Transl from Zavodskaya Laboratoriya. Industrial Laboratory 47:15
Gaokar UG, Eshwar MC (1986) Analyst 111:1393
Rojas FS, Ojeda CB (1988) Talanta 35:753
Yoshimura K, Taketatsu T (1987) Fresenius Z Anal Chem 328:553
Zeng Y, Guo N, Luo Q (1983) J Less Common Metals 94:271
Welz B (1983) Atomspektrometrie, 3 Aufl. VCH, Weinheim
Fresenius W, Lüderwald I (1989) Fresenius Z Anal Chem 334:595
Haines J (1986) Atomic Spectroscopy 7:161
Murugaiyan P (1982) Pure and Applied Chem 54:835
Ooghe W, Verbeek F (1974) Anal Chem 73:87
Yudelevich IG, Zelentsova LV, Beisel NF (1987) Talanta 34:147
Müller W, Maas K (1974) Themen zur Chemie der Lanthaniden und Actiniden. Hüthig, Heidelberg
Baumans PWJM, Tielrooy JA, Maessen FJMJ (1988) Spectrochim Acta 43:173
Mauri AR, Guardia de la M (1988) J Anal Atomic Spectrometry 3:1111
Murty PS, Barnes RM (1986) J Anal Atomic Spectrometry 1:145
Otruba V, Sommer L (1989) Fresenius Z Anal Chem 335:887
Zachmann DW (1988) Anal Chem 60:420
Chudinov EG, Ostroukhova II (1989) Fresenius Z Anal Chem 335:25
Danzer K (1989) Fresenius Z Anal Chem 335:869
Date AR, Gray AL (1985) Spectrochim Acta 40B:115
Wohlers CC (1985) ICP Information Newsletter 10:593
Montaser A, Golightly DW (1987) ICP in analytical atomic spectrometry. VCH, Weinheim
Welz B (1987) 4 Kolloquium Atomspektrometrische Spurenanalytik. Bodenseewerk Perkin-Elmer, Überlingen
Date AR, Hutchinson D (1987) J Anal Atomic Spectrometry 2:269
Gray AL (1985) Spectrochim Acta 40B:1525
Gray AL, Date AR (1983) Analyst 108:1033
Hoffmann HJ (1988) Laborpraxis, p 664
Longerich HP, Fryer BJ, Strong DF, Kantipuly CJ (1987) Spectrochim Acta 42B:75
Prange A (1989) Spectrochim. Acta 44B:437
Vaughan MA, Horlick G (1986) Applied Spectroscopy 40:434
Bertin EP (1978) Introduction to X-ray spectrometry analysis. Plenum Press, New York
Bellary VP, Deshpande SS, Dixit RM, Sankaran AV (1981) Fresenius Z Anal Chem 309:380
Eby GN (1972) Anal Chem 44:2137
Linder HR, Seltner HD, Schreiber B (1978) Anal Chem 50:896
Machacek V, Weiss D (1985) X-Ray Spectrometry 14:53
Roelandts I (1981) Anal Chem 53:676
Hahn-Weinheimer P, Hirner A, Weber-Diefenbach K (1984) Grundlagen und praktische Anwendungen der RFA. Vieweg, Braunschweig
Labrecque JJ, Rosales PA, Mejias G (1986) Anal Chim Acta 188:9
Lal M, Choudhury RK, Agrawal RM (1987) X-Ray Spectrometry 16:23
Kolthoff IM, Elving PJ (1986) Treatise on Analytical Chemistry, 2nd Ed. Part I, Vol 24, Section K: nuclear activation and radioisotope methods of analysis, Wiley, New York
Soete de D, Gijbels R, Hoste J (1972) Neutron activation analysis. Wiley, New York
Bereznei T (1971) J Radioanal Chem 9:81
Crick JG, Lichte FE, Riddle GO, Beech CL (1986) Talanta 33:601
Kiels H (1980) Monatsh Chemie 111:23
Zilliacus R, Kaistila M, Rosenberg RJ (1982) J Radioanal Chem 71:323
Shand WA (1968) J Material Science 3:344
Zschornak G (1989) Atomdaten für die Röntgenfluoreszenzanalyse, Springer, Berlin Heidelberg New York
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Fey, W., Lieser, K.H. Quality control of rare earth compounds by multielement analysis without chemical separation. Fresenius J Anal Chem 346, 896–904 (1993). https://doi.org/10.1007/BF00322747
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF00322747