Talanta EL" SE V IE R Talanta 54 (2001) 1223 www.elsevier.com/locate/talanta Volume Contents Volume 54 (2001) No. 1 30 March 2001 Review Recent applications of thermal lens spectrometry in food analysis and environmental research M. Franko (Nova Gorica, Slovenia) Regular papers osa sonic micellar extraction of polycyclic aromatic hydrocarbons from marine sediments . Pino, J.H. Ayala, A.M. Afonso and V. Gonzalez (La Laguna, Spain) ; : ee of L-malic acid with alkaline metals and open chain polyammonium cations in aqueous solution P.G. Daniele (Torino, Italy}, C. De Stefano, O. Giuffré (Messina, Italy), E. Prenesti (Torino, Italy) and S. Sammartano (Messina, Italy) : P ; : : Stopped-flow injection liquid—liquid extraction spectrophotometric determination of pall:a dium in airborne particulate matter and automobile catalysts A.N. Anthemidis, D.G. Themelis and J.A. Stratis (Thessaloniki, Flow injection spectrophotometric analysis of lead in human saliva for monitoring environmental pollution M. Luconi, M.F. Silva, R.A. Olsina and L. Fernandez (San Luis, Argentina) Differentiation of Spanish brandies according to their metal content A.M. Camean, I. Moreno, M. Lopez-Artiguez, M. Repetto and A.G. Gonzalez (Sevilla, Spain) Flow injection determination of cobalt after its sorption onto polyurethane foam loaded with 2-(2-thiazoly- lazo)-p-cresol (TAC) R.J. Cassella (Niteroi, RJ, Rio de Janeiro, RJ, Brazil), V.A. Salim, L.S. Jesuino, R.E. Santelli (Niteroi, RJ, Brazil), S.L.C. Ferreira (Salvador, BA, Brazil) and M.S. de Carvalho (Rio de Janeiro, RJ, Brazil) \ Rayleigh light scattering study on mixing states of 2-propanol—water binary mixtures widely used as mobile phase in separation Y.G. Wu, M. Tabata and T. Takamuku (Saga, Japan) Native and stearic acid modified ceria—zirconia supports in normal and sevensad phai se “HPLC Y.-L. Hu, Y.-Q. Feng, J.-D. Wan, S.-L. Da and L. Hu (Wuhan, People’s Republic of China) Sorption of traces of silver ions onto polyurethane foam from acidic solution S.M. Hasany, M.M. Saeed and M. Ahmed (Islamabad, Pakistan) Redundant chemical sensors for calibration-impossible applications J.C. Seiter and M.D. DeGrandpre (Missoula, MT, USA) , Use of amino-carbonyl reaction and chemiluminescence detection to the flow: injection determination of some amino acids Michalowski and A. Kojo (Bialystok, Poland) : er ee tunes Voltammetric determination of 4-nitrophenol at a sodium montmorillonite-anthraquinone chemically modified glassy carbon electrode S. Hu, C. Xu (Wuhan, PR China), G. Wang (Henan, PR China) and D. Cui (Beijing, PR China). Fuzzy robust estimation of central location C. Sarbu and H.F. Pop (Cluj-Napoca, Romania). 1224 Contents of Volume 54 On the possibility to improve the performance of flow injection analysis by deconvolution of spectrophotometric data J.E.T. Andersen (Lyngby, Denmark) . ee waa en ‘ Electrothermal atomic absorption spectrometric determination of echalt, copper, lead oad nickel traces in aragonite following flotation and extraction separation D. Zendelovska, G. Pavlovska, K. Cundeva and T. Stafilov (Skopje, Macedonia) ie Determination of micromolar bromate concentrations by adsorptive-catalytic stripping votammetry of the molybdenum-3-methoxy-4-hydroxymandelic acid complex J. Wang, B. Serra, S.Y. Ly, J. Lu and J.M. Pingarron (Las Cruces, NM, USA) ice Potentiometric sensor for hydrogen ion based on N,N’-dialkylbenzylethylenediamine neutral carrier in a poly(vinyl chloride) membrane with polyaniline solid contact W.-S. Han, M.-Y. Park, K.-C. Chung, D.-H. Cho (Seoul, South Korea) and T.-K. Hong (Chungnam, SouthK orea) Spectrofluorimetric determinn ation of chlorophylls per pheopigments using parallel factor analysis L. Moberg, G. Robertsson and B. Karlberg (Stockholm, Swede ‘ Evaluation of suspected interferents for TNT detection by ion mobi lity spectrometry L.M. Matz, P.S. Tornatore and H.H. Hill (Pullman, WA, USA) Radiochemical analysis of uranium isotopes in soil and sediment samples with extraction » hein tography M.H. Lee and C.W. Lee (Taejon, South Korea) Revisitation of mineralization modes for arsenic and se beniuen d¢ eterminations in environmentt al compiles E. Vassileva (Sofia, Bulgaria), H. Docekalova (Brno, Czech Republic), H. Baeten, S. Vanhentenrijk and M. Hoenig (Brussels, Belgium) Sak ER I ee eT CEE ge aya ete ee Preconcentration and separation with Amberlite XAD-4 resin; determination of Cu, Fe. Pb, Ni, Cd and Bi at trace levels in waste water samples by flame atomic absorption spectrometry A. Uzun, M. Soylak (Kayseri, Turkey) and L. El¢i (Denizli, Turkey) Book reviews Calendar of forthcoming meetings No. 2 12 April 2001 Regular papersOn-line preconcentration system for bismuth determination in urine by flow injection hydride generation inductively coupled plasma atomic emission spectrometry S. Moyano, R.G. Wuilloud, R.A. Olsina, J.A. Gasquez and L.D. Martinez (San Luis, Argentina) Polarographic investigation of reduction process of some azodyes and their complexes with rare earths L. Dubenska, H. Levytska and N. Poperechna (L’viv, Ukraine) . Vibrational spectra, assignments and normal coordinate calculation of ecevamite N. Sundaraganesan, N. Puviarasan and S. Mohan (Pondicherry, India) ee wy Synthesis, characterization and structure effects on selectivity properties of silica gel covalently bonded diethylenetriamine mono- and bis-salicyaldehyde and naphthaldehyde Schiff's bases towards some heavy metal ions E.M. Soliman (El-Minia, Egypt), M.E. Mahmoud (Alexandria, Egypt) and S.A. Ahmed (El-Minia Egypt) Application of a microbial sensor to the waaay control |o f meat fredheess Y. Yano (Ibaraki, Japan), M. Numata, H. Hachiya,S . Ito (Tokyo, Japan), T. Masadome (Fukuoka, Japan), S. Ohkubo, Y. Asano (Aomori, Japan) and T. Imato (Fukuoka, Japan). RA de aaa NSRon Ceea a ee a Monitoring ‘*D N: A oxidative damage with piezoelectric quartz crystal method Y. Wu, L. Yi, Q. Xie, Y. Zhang, F. Yin and S. Yao (Changsha, People’s Republic of China) iinet of white wines by their aromatic index E. Falqué, E. Fernandez (Ourense, Spain) and D. Dubourdieu (Talence, France) . Determination of ketorolac in human serum by square wave adsorptive stripping voltammetry A. Radi (Dumyat, Egypt), A.M. Beltagi and M.M. Ghoneim (Tanta, Egypt) Fatty acid profiles as discriminant parameters for coffee varieties differentiation M.J. Martin, F. Pablos, A.G. Gonzalez, M.S. Valdenebro and M. Leon-Camacho (Seville, Spain) Contents of Volume 54 Resolving interferences in negative mode ion mobility spectrometry using selective reactant ion chemistry K.A. Daum, D.A. Atkinson, R.G. Ewing (Idaho Falls, ID, USA), W.B. Knighton and E.P. Grimsrud (Bozeman, MT, USA) - Evaluation of the accuracy of the determination of lead isotope ratios in wine by ICP MS using quadrupole, multicollector magnetic sector and time-of-flight analyzers M. Barbaste (Pau-Pyrénées, Talence, France), L. Halicz (Jerusalem, Israel), A. Galy (Oxford, UK), B Medina (Talence, France), H. Emteborg, F. C. Adams (Antwerp, Belgium) and R. Lobinski (Pau-Pyrénées, France) Peroxidase-like activity on organic hydroperoxides of ion-exchange resins modified with metal-porphine analogues and analytical application for determination of linoleate hydroperoxide M. Mifune, T.-a. Tai, A. Iwado, H. Akizawa, J. Oda (Okayama, Japan), N. Motohashi (Kobe, Japan) and Y. Saito (Okayama, Japan) Evaluation of a reagent-injection flow injection technique for sample background absorption elimination determination of chloride in cigarettes L. Jing-fu and J. Gui-bin (Beijing, People’s Republic of China) , A study on the interaction between concanavalin A and glycogen by light scattering technique and its analytical application S.Z. Zhang, F.L. Zhao, K.A. Li and S.Y. Tong (Beijing, People’s Republic of China) New method for separation and determination of denatured caseins by hydrophobic interaction chromatography E. Bramanti, F. Ferri, G. Raspi, L. Lampugnani, M. Carla Spinetti (Pisa, Italy), K.E. Miller and R.E Synovec (Seattle, WA, USA). ; Anodic oxidation of etodolac and its square wave and differential pulse voltammetric determination in pharmaceuticals and human serum S. Yilmaz, B. Uslu and §.A. Ozkan (Ankara, Turkey) A chemically modified carbon paste electrode with D-lactate dehydrogenase and alanine aminotransferase enzyme sequences for D-lactic acid analysis H.-C. Shu and N.-p. Wu (Hualien, PR China) ‘ An insight into the solution equilibria of magnesium(II) with purpurin and _ spectrophotometric determination of magnesium K.A. Idriss, H. Sedaira and H.M. Ahmed (Assiut, Egypt) ‘ Column-switching high-performance liquid chromatographic determination of clarithromycin in human plasma with electrochemical detection S.J. Choi, $.B. Kim, H.-Y. Lee (Iksan, South Korea), D.H. Na, Y.S. Yoon, S.S. Lee, J.H. Kim, K.€ Lee (Suwon, South Korea) and H.S. Lee (, South Korea) : : A gas chromatography quartz crystal microbalance for speciation of nitroaromatic compounds in landfill gas T.A.P. Rocha-Santos, A.C. Duarte and J.A.B.P. Oliveira (Aveiro, Portugal) Optimization of experimental parameters for the determination of mercury by MIP/AES M. Murillo, N. Carrion, J. Chirinos, A.G ammiero and E. Fassano (Caracas, Venezuela) Selective kinetic spectrophotometric determination of copper at nanograms per milliliter level A. Safavi, N. Maleki and F. Farjami (Shiraz, Iran) Determination of low concentrations of the flotation reagent ethyl xanthate by sampled DC polarography and flow injection with amperometric detection P. Hidalgo and I.G.R. Gutz (Sado Paulo, Brazil) Short communication Redox-potentiometric determination of peroxide value in edible oils without titration E. Kardash-Strochkova, Y.I. Tur’yan and I. Kuselman (Jerusalem, Israel) 212¢6 Contents of Volume 54 Book reviews Encyclopedia of material tensors on CD + booklet: S.V. Popov, Y.P. Svirko and N.I. Zheludev, Wiley, 1999 P.J. Cox (Aberdeen, UK). SF pod ee: eee : Essentials of pharmaceutical chemistry: D. Cairns, Pharmaceutical Press, London, 2000. P.J. Cox (Aberdeen, UK) ae ride" : sien ee reteset ‘ : , Chemical separations principles, techniques, and experiments: C.E. Meloan, Wiley Interscience, New York, 1999 P.J. Cox (Aberdeen, UK) Announcement. Calendar of forthcoming meetings No. 3 Special Issue: The Detection and Analysis of Explosives Preface G.A. Eiceman and G.J. Ewing (Las Cruces, USA) Determination of nitroaromatic, nitramine, and nitrate ester explosives in soil by gas chromatography and an electron capture detecto1 M.E. Walsh (Hanover, NH, USA) cop lon eye Molecular recognition and self-assembled polymer films for vapor phase detection of explosives X. Yang, X.-X. Du, J. Shi and B. Swanson (Los Alamos, USA). Screening people for illicit substances: a survey of current portal technology S.F. Hallowell (Atlantic City, NJ. USA). St ae Pulsed fast/thermal neutron analysis: a technique for explosives detection G. Vourvopoulos and P.C. Womble (Bowling Green, KY, USA) a4 ; Rational materials design of sorbent coatings for explosives: applications with chemical sensors E.J. Houser (Washington, DC, USA), T.E. Misna, V.K. Nguyen, R. Chung (Rockville, MD, USA), R.L. Mowery and R. Andrew McGill (Washington, DC, USA) : eae Mina t oe Ae : : or The scientific foundation and efficacy of the use of canines as chemical detectors for explosives K.G. Furton (Miami, FL, USA) and L.J. Myers (Auburn, AL, USA) Chemical signatures of TNT-filled land mines T.F. Jenkins, D.C. Leggett, P.H. Miyares, M.E. Walsh, T.A. Ranney (Hanover, NH, USA), J.H. Cragin and V. George (Fort Belvoir, VA, USA) A critical review of ion mobility spectrometry for the detection of explosives and explosive related compounds R.G. Ewing, D.A. Atkinson (Idaho Falls, ID, USA), G.A. Eiceman and G.J. Ewing (Las Cruces, NM, USA) Calendar of forthcoming meetings No. 4 30 May 2001 Review Recent applications of electrogenerated chemiluminescence in chemical analysis K.A. Fahnrich, M. Pravda and G.G. Guilbault (Cork, Ireland) Regular papers Adsorption voltammetry of the scandium-alizarin red S complex onto a carbon paste electrode J. Zhang, J.-n. Li and P.-h. Deng (Hunan, People’s Republic of China) Contents of Volume 54 On the microwave digestion of soiis and sediments for determination of lanthanides and some toxic and essential elements by inductively coupled plasma source mass spectrometry J. Ivanova, R. Djingova (Sofia, Bulgaria), S. Korhammer and B. Markert (Zittau, Germany) . Extraction of sodium and potassium picrates with 15-(2,5-dioxahexyl)-15-methyl-16-crown-5 (lariat 16C5) into various organic solvents. Elucidation of fundamental equilibria which determine the extraction ability for Na* and K~* and the selectivity Y. Takeda, K. Endo, S. Katsuta (Chiba, Japan) and M. Ouchi (Hyogo, Japan). Spectrophotometric determination of lead in foods with dibromo-p-methyl-bromosulfonazo G. Fang, S. Meng, G. Zhang (Datong, People’s Republic of China) and J. Pan (Shanghai, People’s Republic of China). Electrochemical studies of rutin interacting with hemoglobin and determination of hemoglobin X. Bao, Z. Zhu, N.-Q. Li and J. Chen (Beijing, People’s Republic of China) Copper(II)-selective electrode using 2,2’-dithiodianiline as neutral carrier M.B. Gholivand and N. Nozari (Kermanshah, Iran) Application of artificial neural networks in multifactor optimization of an on-line microwave FIA system for catalytic kinetic determination of ruthenium (III1) Y.-B. Zeng, H.-P. Xu, H.-T. Liu, K.-T. Wang, X.-G. Chen, Z.-D. Hu and B.-t. Fan (Lanzhou, People’s Republic of China) Simultaneous spectrophotometric determination of thorium and rare earth metals with pyrimidine azo dyes and cetylpyridinium chloride A.S. Amin and T.Y. Mohammed (Benha, Egypt) : ; Determination of active ingredients in cough—cold preparations by micellar liquid chromatography M. Gil-Agusti, L. Monferrer-Pons (Castello, Spain), M.C. Garcia-Alvarez-Coque (Valéncia, Spain) and J. Esteve-Romero (Castello, Spain) . Optimisation of FIA system for detection of organophosphorus and carbamate pesticides based on cholinesterase inhibition L. Poga¢nik and M. Franko (Nova Gorica, Slovenia) Study on the aggregation of teicoplanin E. Tesarova, Z. Tuzar, K. Nesmérak, Z. Bosakova and B. GaS (Prague, Czech Republic) Determination of stimulants in human urine and hair samples by polypyrrole coated capillary in-tube solid phase microextraction coupled with liquid chromatography-electrospray mass spectrometry J. Wu, H. Lord and J. Pawliszyn (Waterloo, Canada) Selective dissolution and one step separation of terpene trilactones in ginkgo leaf extracts for GC-FID determination Q. Lang, H. Kwang Yak and C.M. Wai (Moscow, ID, USA) : Effects of fungal laccase immobilization procedures for the development of a biosensor for phenol compounds R.S. Freire, N. Duran and L.T. Kubota (Campinas, Brazil) Preconcentration of lead complexed with O,O-diethyl-dithiophosphate by column solid-phase extraction using different sorbents in a flow injection system coupled to a flame atomic absorption spectromete! S.P. Quinaia (Guarapuava, Brazil), J.B. Borba da Silva (Belo Horizonte, Brazil), M.C. Ezequiel Rollemberg (Maringa, Brazil) and A.J. Curtius (Florianopolis, Brazil) : : : ae Flow-injection system for automated dissolution testing of isoniazid tablets with chemiluminescence detection B. Li, Z. Zhang and W. Liu (Xian, People’s Republic of China) Theoretical approach to non-constant uptake rates for tube-type diffusive samplers B. Tolnai, A. Gelencsér and J. Hlavay (Veszprém, Hungary) 5 Re eae : Flow-injection chemiluminometric analysis of some benzamides by their sensitizing effect on the cerium-sulphite reaction F.A. Aly, N.A. Alarfaj and A.A. Alwarthan (Riyadh, Saudi Arabia) Application of the H-point standard addition method to the speciation of Fe(II) and Fe(III) with chromogenic mixed reagents A. Safavi and H. Abdollahi (Shiraz, Iran). 1228 Contents of Volume 54 Supercritical fluid extraction of resveratrol from grape skin of Vitis vinifera and determination by HPLC M.C. Pascual-Marti, A. Salvador, A. Chafer and A. Berna (Valencia, Spain) ck Determination of palladium by graphite furnace atomic absorption spectroscopy without matrix matching X. Jia, T. Wang and J. Wu (Rahway, NJ, USA). : mye Identification and determination of active components in Angelica dahurica Benth and its medicinal preparation by capillary electrophoresis W. Ketai, L. Huitao, C. Xingguo, Z. Yunkun and H. Zhide (Lanzhou, People’s Republic of China) Urea biosensor based on amperometric pH-sensing with hematein as a pH-sensitive redox mediator A. Pizzariello, M. Stredansky, S. Stredanska and S. MiertuS (Trieste, Italy) Flow injection analysis of sulfite ion with a potentiometric titanium phosphate—epoxy based membrane sensor S.S.M. Hassan (Cairo, Egypt), S.A. Marei (Inshas, Egypt), I.H. Badr (Cairo, Egypt) and H.A. Arida (Inshas, Egypt) Announcement Calendar of forthcoming meetings Detection and determination of nitrate and nitrite: a review M.J. Moorcroft, J. Davis and R.G. Compton (Oxford, UK Study on the supramolecular system of TAPP with cyclodextrins by polarography X.-P. Wang, J.-H. Pan, W.-H. Li and Y. Zhang (Taiyuan, China) All-solid-state potentiometric sensors sensitive to nonionic surfactants based on ionophores containing ethoxylate units S. Martinez-Barrachina, J. Alonso, L. Matia, R. Prats and M. del Valle (Barcelona, Spain) Mercury determination SPME and colorimetric spot test A. Gotzl and W. Riepe (Salzburg, Austria) Determination of metals in lubricating oils by X-ray fluorescence spectrometry M. Pouzar, T. Cernohorsky and A. Krejéova (Pardubice, Czech Republic) Effects of acid rain on soil humic compounds N. Calace, F. Fiorentini, B.M. Petronio and M. Pietroletti (Rome, Italy). Direct ermination of uric acid in serum by a fluorometric-enzymatic method based on uricase J. Galban, Y. Andreu, M.J. Almenara, S. de Marcos and J.R. Castillo (Zaragoza, Spain) Direct determination of trace amounts of sodium in water-soluble organic pharmaceuticals by microwave induced plasma atomic emission spectrometry K. Jankowski (Warsaw, Poland) Solid phase extraction and determination of ultra trace amounts of copper(II) using octadecyl silica membrane disks modified by 11-hydroxynaphthacene-5,12-quinone and flame atomic absorption spectrometry M. Shamsipur (Kermanshah, Iran), A. Avanes, M.K. Rofouei (Tehran, Iran), H. Sharghi and G. Aghapour (Shiraz, Iran) Sonoelectrochemically enhanced determination of 5-aminosalicylic acid E.L. Beckett. N.S. Lawrence, R.G. Evans, J. Davis and R.G. Compton (Oxford, UK). : ; A flow system with a conventional spectrophotometer for the chemiluminescent determination of lactic acid in yoghurt P.B. Martelli, B.F. Reis (Piracicaba, Brazil), A.N. Aratjo, M. Conceigdo and B.S.M. Montenegro (Porto, Portugal) : Se tet Patents Polishing of screen-printed electrodes improves IgG adsorption M. Pravda, C. O'Meara and G. G. Guilbault (Cork, Ireland) Contents of Volume 54 Photocurable ISFET for anionic surfactants. Monitoring of photodegradation processes J. Sanchez and M. del Valle (Bellaterra, Spain) \ fluorescent nitrate sensing system using a reaction cartridge and titanium trichloride S.-J. ¢ no, S. Sasaki, K. Ikebukuro and I. Karube (Tokyo, Japan) A coulometr 14c iodimetric procedure for meas suu ring the purity of lewisite G. Sandi, K.I Brubaker, J. Schneider, H.J. O'Neill (Argonne, IL, USA) and P.L. Cannon Jr (Aberdeen, MD, USA) Determination o * zine in 1 plant samples by isotope dilution inductively coupled plasma mass spectrometry O. Mestek, J. Kominkova, R. Koplik and M. Suchanek (Prague, Czech Republic) On-line solid phase extraction system using PTFE packed column for the flame itomic absorption spectrometric determination of copper in water samples A.N. Anthemidis, v( U A. Zachariadis and J.A Stratis (Thessaloniki, Greece) Evaluation of an automated solid-phase extraction system for the enrichmHiee nt of organochlorine pesticic ies Columé, S. Cardenas, M. Gallego and M Valcarcel (Cordoba, Spain) Simultaneous determination of organotin compounds b y hydride 1eration—gas phase molecular absorption spectrometry j Sanz-Asensio, M.T. Martinez-Soria, M. Plaza-Medin a Pérez Clavijo (Logrofio-La Rioja Spain) Evaluation of ggll ucose Ddiosensors based on Prussian Blue and lyophilised, crystalline ind giucose yxidases (CLEC) I. Luiz de Mattos (Lund. Sweden), | \ Lukachova (Moscow, Russia), L. Gorton, T Sweden) and A.A Karyakin (Moscow Russia) IC P-MS mul tielement determination in fly microwave-assisted digg estion of sample A.K. Das, R. Chakraborty (Burdwan, Iindd ia), M Guardia, M.L. Cervera (Valencia, Spain) and D Goswami (B urdwan, India) Application to drug—food interactions of livingg cellce lls as in vill 0 model expressing cytochrome P450 activity enzyme inhibition b y lemon juice M.R.H. Baltes, J.G. Dubois Hanocq (Brussels, Belgium) Flow injection determination of methamidophos using online photo-oxidation anc ]1 fluorimetric detection Perez-Ruiz ( Martinez-Lozano, \ Tomas and J. Martin (Murcia, Spain) CorregendMiu ll [Talanta 53 (2000) and Q Oreganic-€ th Edition revised and enlarged, Akaden vie Verlag, Berlin, 2000 PJ Cox (Aberdeen, UK) Biopharmaceuticals Biochemistry and Biotechnology, Edited by Gary Walsh, John Wile) and Sons, Chichester, 1998 A.J. Lamb (Aberdeen, UK) 1009 Principles of {nalytical Chemists { Textbook by Miguel Valcarcel, SpringerVe rlag, Berlin, 2000 E.H Hansen (Lyngby, Denmark) 101 Chemical Measurements in Biologice u Systems Edited by K.K. Stewart and R.E. Ebel, Wiley-Interscience New York. 2000 T. McCreedy (Hull UK) Chemical fnalysis Modern Instrumental Methods and Techniques Edited by F. Rouessac and A Rouessac, Wiley, Chichester, 2000 T. McCreedy (Hull, UK) Announcements Calendar of forthcoming meetings Contents of Volume 54 6 July 2001 Review Preparation steps in environmental trace element analysis facts and traps M. Hoenig (Tervuren, Belgium). Regular papers Column silylation method for determining endocrine disruptors from environmental water samples by solid phase micro-extraction M.I.H. Helaleh, S. Fujii and T. Korenaga (Tokushima, Japan). : boric ios ; 1039 Effect of presence of 18-crown-6 on the response of1 -pyrrolidine dicatbodithions te- nies lead selective electrode M.M. Zareh, A.K. Ghoneim and M.H. Abd El-Aziz (Zagazig, Egypt) oe Viscosity and binder composition effects on tyrosinase-based carbon paste electrode fot ibe of shined and catechol K.R. ~— (Las Vegas, NV, USA), J.Y. Becker (Beer-Sheva, Israel), J.C embrano and S.H. Chough (Las Vegas, NV, USA) . Ae ae me ee oh mess tel of hypaphorine and gina stithenes in the root of Caragana sinica by capillary electrophoresis with electrochemical detection G. Chen, H. Luo, J. Ye and C. Hu (Shanghai, People’s Republic of China) : Determination of linuron in soil by stripping voltammetry with a carbon fiber microelectrode M. Gonzalez de la Huebra, P. Hernandez, Y. Ballesteros and L. Hernandez (Madrid, Spain) Fourier transform infrared spectrometric determination of Ziram A.R. Cassella, S. Garrigues, R.C. de Campos and M. de la Guardia (Valencia, Spain) Detection of zeptomolar concentrations of alkaline phosphatase based on a tyrosinase and horse-ré via peroxidase bienzyme biosensor C. Ruan and Y. Li (Fayetteville, AR, USA) : 1095 Disposable amperometric glucose sensor electrode with enzyme-immo obilieed wirocdibahoss strip G. Cui, J.H. Yoo, B.W. Woo, S.S. Kim, G.S. Cha and H. Nam (Seoul, South Korea). ; 1105 Quantitative structure—property relationship study of acidity constants of some 9,10-anthraquinone derivatives using multiple linear regression and partial least-squares procedures M. Shamsipur (Kermanshah, Iran), B. Hemmateenejad, M. Akhond and H. Sharghi (Shiraz, Iran). Experimental design methodologies to optimise the spectrofluorimetric determination of Losartan and Valsartan in human urine E. Cagigal, L. Gonzalez, R.M. Alonso and R.M. Jiménez (Bilbao, Spain) ; ; ; Thermodynamic parameters for the binding of inorganic and organic anions by biogenic polyammonium cations A. De Robertis, C. De Stefano, C. Foti, O. Giuffre and S. Sammartano (Messina, Italy) PVC membrane based potentiometric sensors for uranium determination S.S.M. Hassan, M.M. Ali and A.M.Y. Attawiya (Cairo, Egypt) ay: ; Microwave-accelerated derivatization processes for the determination of phenolic acids chromatography~—mass spectrometry r.-Y. Chu, C.-H. Chang, Y.-C. Liao and Y.-C. Chen (Taichung, Taiwan) . : ee An improved extraction chromatographic resin for the separation of uranium from pelle nitrate snide M.L. Dietz, E.P. Horwitz, L.R. Sajdak and R. Chiarizia (Argonne, IL, USA). Derg ae Development of a luminol-based chemiluminescence flow-injection method for the determination of dichlorvos pesticide J. Wang, C. Zhang (Beijing, People’s Republic of China), H. Wang (Qing Hai, People’s Republic of China), F. Yang and X. Zhang (Beijing, People’s Republic of China) . Rea eats Mane Design, synthesis and evaluation of diazadibenzocrown ethers as Pb** extractants and carriers in plasticized cellulose triacetate membranes J.C. Aguilar, E.R.S. Miguel, J. Gyves (Mexico, Mexico), R.A. Bartsch and M. Kim (Lubbock, TX USA) Use of charge-transfer comnisleneitt ion in the wetectianmenteic sneliila of certaina cel ilosporins G.A. Saleh, H.F. Askal (Assiut, Egypt), M.F. Radwan and M.A. Omar (Minia, Egypt) . Contents of Volume 54 Book rei le% (C apillary Electrophoresi VUf ethods for Pharmaceutical Analysis, Edited by G. Lunn, Wileiye ¢y-interscience, York, 2000, xxii + 1544 pp. ISBN 0-471-33188-0: £190.00 R. Reid (Aberdeen, .t UK) Ss lid-phase SY nthesis and 1 combinatorial technologies by P. Seneci, Wiley-Interscience, New York 2000. xii + 637 pp.; £70.95; ISBN: 0-471-33195-3 UK) ) Instructions to authors Volume Contents Author Index Subject Index Calendar of forthcoming