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Indus- trielle, INSA, Bat. 401, 69621 Villeurbanne Cedex, France).Murillo, M., Mermet, J. M., Relation between operating parameters and line energy in ICP-AES, (Lab. Sci. Anal., Bat. 308, Univ. Claude Bernard-Lyon I, 69622 Villeur- banne Cedex, France). Turk, G. C., Axner, O., *Omenetto, N., Optical detection of laser induced ionisation in the inductively coupled plasma for the study of ion - electron recombination and ionisation equilibrium, (Joint Res. Cent. Ispra, Chem. Div., Ispra, Varese, Italy).162R JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, AUGUST 1987, VOL. 2 871C1375. Yang, P., Barnes, R. M., Experimental and theoretical evaluation of a low-power oxygen inductively coupled plasma discharge for spectrochemical analysis, (Dept . Chem. , Univ. Massachusetts, GRC Towers, Amherst, 87/C1376. Erlich, S., Brenner, I.B., Goldbart, Z., Characteristics of a low-power nitrogen - argon ICP for multi-element analytical emission spectrometry, (Geol. Surv. of Israel, 30 Malke Israel St., Jerusalem 95501, Israel). 871C1377. Meyer, G. A., Total consumption sample introduction into an air ICP using a direct injection nebuliser, (The Dow Chemical Company, Michigan Appl. Sci. Technol. Labs. , 1602 Building, Midland, MI 48674, USA). 87/C1378. Durr, R. C., Mermet, J. M., Trassy, C., Determination of trace elements in air using argon and air ICPs, (ESI Durr, Rue J. Porraz, 73201 Altberville, France). 87/C1379. Bergey, C., Birolleau, J. C., Thouzeau, F., Durr, R. C., Air ICP uses for instantaneous monitoring of airborne pollutants, (CEA, Service CQ, BP 12, 91680 Bruyeres le Chatel, France).87/C1380. Williams, J. G., Polyatomic, oxide and doubly charged ions on a VG PlasmaQuad ICP-MS system, (Dept. Chem., Univ. Surrey, Guildford, Surrey GU2 5XH, UK). 871C1381. Hutton, R. C., Cantle, J. E., Eaton, A. N., Practical figures of merit in ICP-MS, (VG Isotopes Ltd., Ion Path, Road Three, Winsford, Cheshire CW7 3BX, UK). 87/C1382. Gray, A. L., Williams, J. G., Optimisation of a commer- cial ICP-MS instrument for routine multi-element analysis, (Dept. Chem., Univ. Surrey, Guildford, Surrey GU2 5XH, UK). 871C1383. Boorn, A., Fulford, J., Gillson, G., Complete elemental analysis by ICP-MS, (SCIEX, 55 Glen Cameron Rd., Thornhill, Ontario L3T 1P2, Canada). 871C1384. Hulmston, P., Recent applications of inductively coupled plasma mass spectrometry, (Chemistry and Explosives Division, Atomic Weapons Research Establishment, Aldermaston, Berkshire, UK).871C1385. Long, S. E., Isotope dilution determinations by ICP-MS, (Environ. and Medical Sci. Div., Harwell Lab., Oxford- shire OX11 ORA, UK). 871C1386. Boorn, A., Gillson, G., Fulford, J., Douglas, D., Quan, E., Analysis of complex samples by ICP-MS, (SCIEX, 55 Glen Cameron Rd., Thornhill, Ontario L3T 1P2, Canada). 87/C1387. Brown, R. M., Pickford, C. J., ICP-MS as a detector for environmental levels of low specific activity radionuclides, (Environ. and Medical Sci. Div., Harwell Lab., Oxford- shire OX11 ORA, UK). 871C1388. Taylor, P. D. P., McLaren, J. W., The determination of trace elements in biological and environmental reference materials using ICP-MS, (Inst.Nucl. Sci., State Univ. Ghent, Proeftuinstraat 86, B-9000 Ghent, Belgium). 87/C1389. Luck, J., Determination of low REE concentrations in iron formating samples by ICP-MS, (Hahn-Meitner-Insti- tut Berlin GmbH (HMI), AG Geochemie, Glienicker- straae 100, D-1000 Berlin 39, FRG). 871C1390. Date, A. R., Cheung, Y. Y., Stuart, M. E., The application of ICP-MS to the analysis of iron-rich samples, (British Geol. Surv., 64 Gray’s Inn Road, London WClX 8NG, UK). 87/C1391. Jackson, S. E., Fryer, B. J., Gosse, W., Healey, D. C., Longerich, H. P., Strong, D. F., Determination of the precious metals in geological materials by inductively coupled plasma mass spectrometry, (Dept. Earth Sci., Memorial Univ. Newfoundland, St. John’s, Newfound- land A1B 3x5, Canada). 871C1392.Date, A. R., Stuart, M. E., The application of ICP-MS to the determination of halides in urban dust, (British Geol. Surv., 64 Gray’s Inn Road, London WClX 8NG, UK). MA 01003-0035, USA). 871C1393. Dean, J. R., Crews, H. M., Ebdon, L., Massey, R., Speciation of trace metals in foodstuffs by HPLC - ICP-MS, (Dept. Environ. Sci., Plymouth Polytechnic, Drake Circus, Plymouth, Devon PL4 8AA, UK). 871C1394. Brenner, I. B., Lemarchand, A., Gatel, G., Lang, Y., Grosdaillon, P., A critical evaluation of the analytical performance of the Grimm discharge lamp (GDL), inductively coupled plasma (ICP) and spark generator (SG) ICP atomic emission spectrometries (AES) for multi-element analysis of geological samples and related materials using sequential and simultaneous spectromet- ers, (Geol.Surv. of Israel, 30 Malke Israel St., Jerusalem 95501, Israel). 871C1395. Vandenhssche, P., Thi-issen, T., Evaluation of GDL as an 87/C 871C 871C analytical technique for the .metal industry, (Philips Export, Lelyweg 1, 7602 EA Almelo, The Netherlands). 396. Hall, D., Charalambous, P. M., Sanderson, N. E., GDMS for material analysis, (VG Isotopes Ltd., Ion Path, Road Three, Winsford, Cheshire CW7 3BX, UK). 397. Bengtson, A., Lundholm, M., Surface analysis with the GDL-some aspects of the quantification problem, (Swedish Inst. for Metals Res., Drottning Kristinas vag 48, A-114 28 Stockholm, Sweden). 398. Ohannessian, L., Hocquaux, H., Tousset, J., Surface analysis by glow discharge. Target sputtering yield: com- parison of theory - experiments, (Cent.Recherches d’Uni- eux, BP. 34, 42701 Firminy, France). 87/C1399. Paski, E., Blades, M. W., Laser excited time-wavelength resolved spectroscopy of solid state mixtures, (Dept. of Chem., 2036 Main Mall, Univ. British Columbia, Van- couver, BC V6T 1Y6, Canada). 87/C1400. Bador, R., Morin, M., Dechaud, H., Desuzinges, C., Laharotte, C., Laser-induced luminescence of lanthanide chelates: application to fluorescent labelling of biomole- cules, (Lab. Biophys., Fac. Pharm., Univ. Claude Ber- nard-Lyon I, 8 avenue Rockefeller, 69373 Lyon Cedex 08, France). 87/C1401. Favarger, P.-Y., ICP and fresh water sediment poly- metallic pollution: how to optimise trace determination in varying matrices, (Institut F.-A. Forel, Univ. Gentwe, Switzerland). 87/C1402. Muszynski, M., New approach to the fast analysis of Na, Li, K by ICP method, (Instruments S.A., Division Jobin-Yvon, 16 rue du Canal, 91160 Longjumeau, France).87/C1403. de Gelis, P., Berneron, R., Surface analysis of steel by ICP-OES, (IRSID, St. Germain en Laye, France). 87/C1404. Gomez Coedo, A., Dorado Lopez, M. T., Vindel Maeso, A., ICP analysis of Co-base superalloys, (CENIM, Gre- gorio del Amo, 8, 28040-Madrid, Spain). 871C1405. Brenner, I. B., Erlich, S., Grosdaillon, P., Trace element analysis of refractory metallurgical materials: a critical evaluation of internal references and high resolution spectrometers, (Geol. Surv. Israel, 30 Malkhe Israel St., Jerusalem 95501, Israel). 87/C1406. Ibar, A., Berisha, M., Djeli, A., Krijestorac, Z., The application of ICP to the production control analysis of lead and zinc flotation and metallurgy, (Fac.Sci., Chem. Dept., Univ. Kosova, 38000 Prishtina, Yugoslavia). 871C1407. Baucells, M., Lacort, G., Roura, M., Pd, Fe and Cu determination in gold by inductively coupled plasma emission spectrometry (ICP) technique , (Servei d’Espec- troscbpia, Univ. Barcelona, Gran Via 585, 08007 Barce- lona, Spain). 871C1408. Grote, B., Henry, R., Analysis of precious metals using ICP-AES, (Bodenseewerk Perkin-Elmer and Co. GmbH, Berliner StraJ3e 312, 6050 Offenbach, Main, FRG). 87/C1409. Reynolds, B. J., Notton, J. H. F., Whitehead, P., Charac- terisation of trace element in platinum standard, (Johnson Matthey Technology Centre, Sonning Common, Reading, UK).JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, AUGUST 1987, VOL.2 163R 87/C1410. Whitehead, P., The use of internal standards for precious metal analysis by inductively coupled plasma emission spectrometry, (Johnson Matthey Technology Centre, Son- ning Common, Reading, UK). 87lC1411. Barbaro, M., Passariello, B., Determination of precious metals by atomic spectroscopy, (Istituto peril Trattamento dei Minerali, Via Bolognola, 7 Rome, Italy). 87K1412. Thouzeau, F., Birolleau, J. C., Lavergne, M., Bergey, C., Simultaneous determination of U, Np, Pu, Am by ICP-AES, (CEA, Service CQ, BP 12, 91680 Bruykres-le- Chiitel, France). 87/C1413. Kocken, J. W. M., Analyses of very concentrated geo- chemical samples with ICP-ES, (Dept. of Geochem., Inst. Earth Sci., Univ. Utrecht, PO Box 80.021, 3508 TA Utrecht, The Netherlands).87/C1414. Castillo, J. R., Molinero, A. L., Marco, E., Element determination at macro-, micro- and trace level in geolog- ical samples by ICP emission spectroscopy, (Dept. Anal. Chem., Univ. Zaragoza, Zaragoza, Spain). 871C1415. Noras, P., Wansen, G., On the use of solution-insert capability of ICAP spectrometry in geochemical mapping, (Geol. Surv. Finland (GSF), SF-02150 ESPOO, Finland). 87/C1416. Vujicic, G., Flury, W., Bermanec, V., ICP-AES determi- 87/C 14 87/C14 nation of plagioclase feldspars Brutto formulae, (IWM Zurich, Industriestrasse 59, CH-8152 Glattbrugg, Switzer- land). 7. Walsh, J. N., Barker, J. E., Direct determination of the rare earth elements by ICP-OES in geological samples: testing the limits of detection in routine analysis, (Dept.Geol., R. H. B. New College, University of London, Egham Hill, Egham, Surrey TW20 OEX, UK). 8. 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