Basic equations and uncertainties in isotope-dilution mass spectrometry for traceability to SI of values obtained by this primary method P. De BièvreH. S. Peiser Original paper Pages: 523 - 525
Investigation of mercury-free potentiometric stripping analysis and the influence of mercury in the analysis of trace elements lead and zinc J. E. T. AndersenLaust Andersen ORIGINAL PAPER Pages: 526 - 532
Determination of cadmium in indium phosphide by electrothermal atomic absorption spectrometry and ion-selective electrode potentiometry M. TaddiaDario RannoRoberto Fornari ORIGINAL PAPER Pages: 533 - 537
Ligand-exchange chromatographic separation of polycyclic aromatic hydrocarbons and polycyclic aromatic sulfur heterocycles on a chelating silica gel loaded with palladium (II) or silver (I) cations U. PyellS. SchoberG. Stork ORIGINAL PAPER Pages: 538 - 541
Development of an amperometric detector for the determination of phenolic compounds Hong-yuan ChenAi-min YuDan-ke Xu ORIGINAL PAPER Pages: 542 - 545
Occurrence and distribution of polycyclic aromatic hydrocarbons (PAHs) in an agricultural ecosystem D. MartensJ. MaguhnA. Kettrup ORIGINAL PAPER Pages: 546 - 554
Extraction of humic acids from a natural matrix by alkaline pyrophosphate. Evaluation of the molecular weight of fractions obtained by ultrafiltration D. TonelliRenato SeeberCarlo Gessa ORIGINAL PAPER Pages: 555 - 560
Capillary gas chromatography of polychlorinated benzonitriles (PCBN) Bernhard MittermaierKarlheinz Ballschmiter Current research note Pages: 561 - 564