ANALAO 108 (1 293) 141 7-1 548 (1 983) December 1983THE ANALYSTTHE ANALYTICAL JOURNAL OF THE ROYAL SOCIETY OF CHEMISTRYCONTENTS1417145014591466147114771481148514901495150015061511152152552853253515381545Atomic-absorption Spectroscopy as a Tool f o r the Determination o f Inorganic Anionsand Organic Compounds. A Review-Manuel Garcia-Vargas, Miguel Milla and JuanAntonio Pbrez- BustamanteDetermination of Iron in Semiconductor-grade Silicon by Furnace Atomic-absorptionSpectrometry-Dona1 A. Stewart and David C. NewtonFurnace Atomisation w i t h Non-thermal Excitation-Experimental Evaluation o f Detec-tion Based on a High-resolution Echelle Monochromator Incorporating AutomaticBackground Correction-H. Falk, E. Hoffmann, Ch.Ludke, John M. Ottaway and S. K. GiriDetermination of Manganese in Precipitated Calcium Carbonate Samples UsingCandoluminescence Spectrophotometry: Some Problems Associated w i t hthe Preparation o f Standards-(The late) Ronald Belcher, E. Roy Clark, Malcolm H. Lloydand Helena Puzanowsha-TarasiewiczLow-temperature Luminescence Spectroscopy Using Conduction Cooling and a PulsedSource Luminescence Spectrometer-Alun T. Rhys Williams, Stephen A. Winfield andJames N. MillerAnalytical Potential of Valence State and Ligand Atom Effects in Titanium K X-raySpectra-John B. Jones and David S. UrchQuantitative Examination o f Polyester - Cotton by Near-infrared PhotoacousticSpectroscopy-Caroline M. Ashworth, Gordon F. Kirkbright and Dominic E. M.SpillaneStatic and Flow Injection Voltammetric Determination o f Total Phosphate and SolubleSilicate i n Commercial Washing Powders a t a Glassy Carbon Electrode-Arnold G.Fogg, Geoffrey C. Cripps and Brian J. BirchCholate Liquid Membrane lon-selective Electrode for Drug Analysis-Luigi Campanella,Lorenzo Sorrentino and Mauro TomassettiAnion-exchange Method f o r Speciation o f Arsenic and Its Application t o SomeEnvironmental Analyses-John Aggett and Rabiya KadwaniRapid Spectrophotometric Assay o f Phenothiazine Drugs i n Pharmaceutical Prepara-tions-Aly M. Taha, Nawal A. El-Rabbat, Michael E. El-Kommos and lbraheim H. RefatDetermination o f Ruthenium(ll1) and Palladium(ll) i n Mixtures by Derivative Spectro-photometry-Basilio MorelliInitial Studies on the Application o f High-performance Liquid Chromatography t oDetermine Organocopper Speciation i n Soil-pore Waters-Leslie Brown, Stephen J.Haswell, Michael M.Rhead, Peter O'Neill and Keith C. C. BancroftREPORT BY THE ANALYTICAL METHODS COMMITTEEDetermination o f Ronidazole in Animal Feeds by High-performance Liquid Chrom-atographySHORT PAPERSSolvent Extraction and Separation o f Thorium(lV) from Lanthanides-Miss V. V.Mudshingikar and V. M. ShindeProcedures f o r the Measurement o f pH in Low Ionic Strength Solutions IncludingFreshwater-Arthur K. Covington, Peter D. Whalley and William DavisonIsolation o f Bergapten and Limettin from Bergamot Oil-Vincent B. Croud, John R .Michaelis and Arnold G. PindarSimultaneous Determination of Fentiazac and p-Hydroxyfentiazac in Plasma by High-performance Liquid Chromatography with Ultraviolet Detection-Pauline s.DowellBOOK REVIEWSINSTRUCTIONS TO AUTHORSSummaries of Papers in this Issue-Pages iii, iv, v, vi, yii, viii, ixPrinted by Heffers Printers Ltd Cambridge EnglandEntered as Second Class at New York, USA, Post OfficThe Periodic Table ofthe ElementsThe Royal Society of Chemistry has produced acolourful wall chart measuring 125cm x 75cmcovering the first 105 elements as they existtoday.Each group is pictured against the same tintedbackground and each element, where possiblephotographed in colour and discussed withregard to its position in the hierarchy of matter.Additional information for each element includeschemical symbol, atomic number, atomicweightand orbits of electrons.The chart is particularly useful for both teachersand students and would make a worthwhileaddition to any establishment.Price f2.20 ($4.50) RSC Members f 1 .OOTeacher Members f4.60 for 10Prices subject to VAT in the UKRSC members should send their orders to: TheRoyal Society of Chemistry, The MembershipOfficer, 30 Russell Square, London WC1 B 5DT.Non-RSC members should send their orders to:The Royal Society of Chemistry, DistributionCentre, Blackhorse Road, Letchworth, HertsSG6 1HN.ll “ A N A L O I D ”COMPRESSED ANALYTICALREAGENTSoffer a saving in the use of lab-oratory chemicals.A range of over50 chemicals includes Oxidizingand Reducing Agents, Reagents forPhotometric Analysis and Indicatorsfor Complexometric Titrations.For full particulars send for ListNO. 513 to:-RIDSDALE & COD LTD.Newham Hall, Newby,Middlesbrough,Cleveland TS8 9EAor telephoneMiddlesbrough317216(Telex: 587765 BASRID)A201 for further information. See page xNotice to SubscribersSubscriptions for The Analyst, Analytical Abstracts andAnalytical Proceedings should be sent to:The Royal Society of Chemistry, Distribution Centre,Blackhorse Road, Letchworth, Herts., SG6 1 HN, EnglandRates for 1984 (including indexes)USAu K/EireThe Analyst alone ... ... ... ... €112 $223Analytical Proceedings a Ion e ... ... f53 $1 06The Analyst and Analytical Proceedings . . . f 1 41 $281Analytical Abstracts ... ... ... f287.50 $574Analytical Abstracts alone ... ... ... €181.50 $362The Analyst and Analytical Abstracts ... €257.50 $514The Analyst, Analytical Proceedings andRest ofWorldf118f56€1 48f270€302f 190.5