1. Multivariate optimization of signal intensities in atomic emission spectroscopy using overlapping resolution maps

   • Dietrich Wienke
   • Klaus Danzer

   Original Papers Pages: 1 - 9

2. Calibration of titration methods

   • A. Parczewski
   • G. Kateman

   Original Papers Pages: 10 - 14

3. A new method for quantitative mass-spectrometric analysis of solutions

   • A. I. Saprykin
   • Yu. V. Kovalev

   Original Papers Pages: 15 - 19

4. Continuous flow thin layer headspace (TLHS) analysis

   • E. Kozlowski
   • E. Sieńkowska-Zyskowska
   • T. Górecki

   Original Papers Pages: 20 - 25

5. Simultaneous effect of salt and methanol concentrations on the hydrophobicity of some ion-pairing agents

   • Tibor Cserháti
   • Mariacarla Gennaro

   Original Papers Pages: 26 - 29

6. Preparation and analysis of a river sediment Standard Reference Material for the determination of trace organic constituents

   • Richard E. Rebbert
   • Stenhen N. Chesler
   • Stephen A. Wise

   Original Papers Pages: 30 - 38

7. Comparison of various electrolysis cells for electrosynthesis of diacetone-2-keto-l-gulonic acid (DAG) by use of cluster analysis

   • N. Elenkov
   • V. Simeonov

   Original Papers Pages: 39 - 41

8. Fabrication and characterization of a sterilizable pH-optrode

   • Jianzhong Zhu
   • Yunlong Jin
   • Jingqi Xue

   Original Papers Pages: 42 - 46

9. Hydraulic high-pressure nebulization sample introduction for direct analysis or on-line matrix separation and trace preconcentration in flame AAS

   • E. Ivanova
   • G. Schaldach
   • H. Berndt

   Original Papers Pages: 47 - 50

10. Determination of oxygen in solids using a modified carrier gas-hot extraction method

    • Wolfgang Gruner
    • Andreas John

    Original Papers Pages: 51 - 53

11. Determination of Fe(II)-Fe(III) and Fe(III)-Ni(II) by the two-component potentiometric complexometric titration

    • Jolanta Kochana
    • Katarzyna Madej
    • Andrzej Parczewski

    Original Papers Pages: 54 - 57

12. The application of redox and induced reactions to the determination of thallium(III) in the presence of thallium(I)

    • Eugeniusz Kubaszewski

    Original Papers Pages: 58 - 60

13. Analysis of mixtures of compounds of copper using K-edge X-ray absorption spectroscopy

    • G. Meitzner
    • E. S. Huang

    Original Papers Pages: 61 - 64

14. Accumulation voltammetry of copper(II) at carbon-paste electrode containing salicylideneamino-2-thiophenol

    • Kazuharu Sugawara
    • Shunitz Tanaka
    • Mitsuhiko Taga

    Original Papers Pages: 65 - 69

15. Peak profile characteristics and atomization mechanisms for selenium in the presence of mercury for graphite furnace atomic absorption spectrometry

    • C. García-Olalla
    • A. J. Aller

    Original Papers Pages: 70 - 75

16. Simultaneous determination of vanadium and lead in unsegmented flow systems of variable flow rate

    • Juliana Marcos
    • Gloria del Campo
    • Miguel Valcárcel

    Original Papers Pages: 76 - 79

17. Alternative spectrophotometric determination of niobium and tantalum with o-hydroxyhydroquinonephthalein in cationic surfactant micellar media

    • Itsuo Mori
    • Yoshikazu Fujita
    • Sachiko Kubo

    Original Papers Pages: 80 - 82

18. Voltammetric determination of gold with a Rhodamine B-modified carbon paste electrode

    • G. Kölbl
    • K. Kalcher
    • A. Voulgaropoulos

    Original Papers Pages: 83 - 86

19. Adsorptive stripping voltammetric behaviour of uranium chelates of some azo compounds

    • Pércio A. M. Farias
    • Aniy K. Ohara

    Original Papers Pages: 87 - 90

20. Fluorescence enhancement of terbium(III) by nucleotides and polyhomonucleotides in the presence of phenanthroline

    • Yun-xian Ci
    • Yuan-zong Li
    • Wen-bao Chang

    Original Papers Pages: 91 - 94

21. Analysis of nitrite and nitrate as 1-nitro-2,4,6-trimethoxybenzene derivatives by reversed-phase HPLC with UV-detection

    • Dimitrios Tsikas
    • Frank-Mathias Gutzki
    • Jürgen C. Frölich

    Original Papers Pages: 95 - 97

22. Indirect determination of bromide by diffusion flow injection analysis with amperometric detection

    • Snezana D. Nikolic
    • Teodora D. Janković
    • John H. Nelson

    Original Papers Pages: 98 - 102

23. Determination of sub-μg/g amounts of vanadium in iron by N-benzoyl-N-phenylhydroxylamine-chloroform solvent extraction/ICP-AES

    • Yûetsu Danzaki

    Original Papers Pages: 103 - 106

24. Application of ICP-AES to the determination of rare earth elements in phosphate samples

    • M. A. Eid
    • J. A. C. Broekaert
    • P. Tschöpel

    Original Papers Pages: 107 - 112

25. Determination of impurities in silicon carbide powders

    • Bohumil Docekal
    • José A. C. Broekaert
    • Günther Tölg

    Original Papers Pages: 113 - 117

26. Multielement characterization of silicon carbide powders by instrumental neutron activation analysis and ICP-atomic emission spectrometry

    • M. Franek
    • V. Krivan

    Original Papers Pages: 118 - 124

27. Inter-laboratory comparison of the chemical analysis of silicon nitride

    • C. Adelhelm
    • D. Hirschfeld

    Original Papers Pages: 125 - 127

28. Application of SIMS in patina studies on Bronze Age copper alloys

    • H. J. Wouters
    • L. A. Butaye
    • F. C. Adams

    Original Papers Pages: 128 - 134

29. Identification of proteinaceous binding media of easel paintings by gas chromatography of the amino acid derivatives after catalytic hydrolysis by a protonated cation exchanger

    • Ernst Kenndler
    • Karin Schmidt-Beiwl
    • Maximilian Pöhm

    Original Papers Pages: 135 - 141

30. Determination of chromium in liquid fertilizers by ICP/OES using spectra accumulation

    • S. Gergely

    Original Papers Pages: 142 - 146

31. Spectrophotometric determination of boron in human hair with azomethine H

    • Jerzy Ciba
    • Arkadiusz Chruściel

    Original Papers Pages: 147 - 149

32. Contributions to the on-line method for the extraction and isolation of pesticide residues and environmental chemicals

    • H. Steinwandter

    Original Papers Pages: 150 - 153

33. Enhancement effect of iron addition for the decomposition of organic mercury as studied by continuous flow analysis with cold vapor atomic absorption spectrometric detection

    • Edison Munaf
    • Toyohide Takeuchi
    • Hiroki Haraguchi

    Original Papers Pages: 154 - 156

34. Study and evaluation of a fluorimetric method for the determination of inorganic mercury in water

    • M. D. Mariscal
    • J. Galban
    • J. Aznarez

    Original Papers Pages: 157 - 162

35. A back-extraction procedure for the dithiocarbamate solvent extraction method. Rapid determination of metals in seawater matrices

    • S. Sachsenberg
    • Th. Klenke
    • E. Zeeck

    Original Papers Pages: 163 - 166

36. Analytical fractionation of labile metals in selected groundwater humic substances by means of chelating ion-exchanger

    • P. Burba
    • P. G. Willmer

    Original Papers Pages: 167 - 171

37. Spectrophotometric determination of micro amounts of beryllium in waste water with chromeazurol S (CAS) and cetylpyridinium chloride (CPC) after separation by dynamic adsorption on activated carbon

    • Qiu Xing-chu
    • Zhu Ying-quan
    • Chen Jun

    Original Papers Pages: 172 - 174

38. Preconcentration of trace metals in river waters by the application of chelate adsorption on Amberlite XAD-4

    • L. Elci
    • M. Soylak
    • M. Dogan

    Original Papers Pages: 175 - 178

39. Determination of gold in sludge and soil by sequential ICP-AES after preconcentration and separation with thiol-cotton fibre

    • Li-qiang Xu
    • Peter Schramel

    Original Papers Pages: 179 - 182

40. Determination of airborne methyl ethyl ketone peroxide

    • Pirkko Pfäffli

    Original Papers Pages: 183 - 185

41. Ultra trace analysis of molybdenum by differential pulse polarography and adsorptive stripping voltammetry in the presence of 2,5-dichloro-3,6-dihydroxy-1,4-benzoquinone

    • Mustafa Karakaplan
    • Seref Güçer
    • Günter Henze

    Original Papers Pages: 186 - 190

42. Measurement of low-Z elements by TXRF

    • M. Hein
    • P. Hoffmann
    • H. M. Ortner

    Short Communications Pages: 191 - 191

43. Gas-liquid separator with integrated manifold as interface for HPLC-hydride AAS of organotin compounds

    • G. Schulze
    • H. Rybczynski
    • Ch. Lehmann

    Short Communications Pages: 192 - 192

44. Influence of protonation on physico-chemical properties of metal extractants

    • Manjurika Paul
    • Rama Pande

    Short Communications Pages: 193 - 195

45. Ion-chromatographic determination of chromium (VI)

    • Pavel Janoš

    Short Communications Pages: 195 - 196

46. Determination of Cu(III) and Cu(II) + Cu(III) in superconducting copper ceramics

    • T. Nedelcheva
    • A. Stoyanova-Ivanova
    • I. Ivanova

    Short Communications Pages: 196 - 198

47. A liquid chromatographic system with multi-detection for the direct analysis of hydrophilic organic compounds in natural waters

    • Stefan Huber
    • F. H. Frimmel

    Short Communications Pages: 198 - 200

48. Loop-column technique: a new sample clean-up method for the determination of gallopamil from biological matrix

    • M. Czejka
    • W. Jäger
    • B. Podesser

    Short Communications Pages: 200 - 201

49. A new fiber optic physico-chemical sensor for chlorinated hydrocarbons in water

    • R. Krska
    • K. Taga
    • A. Katzir

    Short Communications Pages: 202 - 202