To Professor Dr. Karlheinz Ballschmiter on his 60th birthday Klaus G. Heumann Editorial Pages: 207 - 207
Discovery of utmost inner time precision in chromatography R. E. Kaiser Original paper Pages: 208 - 212
The potential of gas chromatography with microwave-induced plasma atomic emission detection (GC-MIP-AED) as a complementary analytical technique in environmental screening analysis of aqueous samples H. FrischenschlagerC. MittermayrM. Grasserbauer Original paper Pages: 213 - 221
Certification of the contents of five polychlorodibenzo-p-dioxins and six polychlorodibenzo furans in milk powder L. G. M. T. TuinstraJ. R. StartinG. N. Kramer ORIGINAL PAPER Pages: 222 - 229
Multi-element characterization of high-purity titanium dioxide by neutron activation analysis D. WildhagenV. Krivan Original Paper Pages: 230 - 238
Screening-method for organotins by elimination of the inorganic tin matrix using a coupling of hydride generation (HG) and transversely heated graphite atomizer-atomic absorption spectrometry (THGA-AAS) H. G. RiepeD. ErberK. Cammann Original paper Pages: 239 - 243
Contamination by butyltin compounds in harbour porpoise (Phocoena phocoena) from the Black Sea Bathini MadhusreeS. TanabeBayram Öztürk Original Paper Pages: 244 - 248
Liquid chromatographic isolation of coplanar PCB congeners on an activated carbon stationary phase Astrid TrostW. KleiböhmerKarl Cammann Original paper Pages: 249 - 253
Levels and patterns of polychlorinated biphenyls in water collected from the San Francisco Bay and Estuary, 1993–95 W. M. JarmanGlenn W. JohnsonRobert Ramer Original paper Pages: 254 - 260
Separation of polychlorinated dibenzothiophenes from polychlorinated dibenzodioxins and -furans Klaus SielexJ. T. Andersson Original paper Pages: 261 - 266
Comparison of liquid chromatography-mass spectrometry interfaces for the analysis of polar metabolites of benz[a]pyrene Robert KoeberR. NiessnerJosep Maria Bayona ORIGINAL PAPER Pages: 267 - 273
Ozonation of pyrene and benzo[a]pyrene in silica and soil –14C-mass balances and chemical analysis of oxidation products as a first step to ecotoxicological evaluation M. EberiusAnne BernsIngolf Schuphan Original paper Pages: 274 - 279
Polycyclic aromatic hydrocarbons in Ya-Er Lake (Hubei, China): sources and distribution G. S. ChenK.-W. SchrammA. Kettrup Original paper Pages: 280 - 284
Trace analysis of epichlorohydrin in water samples H.-J. NeuR. Sprenger Original paper Pages: 285 - 287
Particle beam LC/MS screening of polar compounds of contaminated ground water samples from a former gas plant B. EdlerC. ZwienerF. H. Frimmel Original paper Pages: 288 - 292
Improvement of GC-MS analysis of organochlorine pesticides in sediments by use of a computer-optimized temperature program H. PichlerO. GansM. Grasserbauer ORIGINAL PAPER Pages: 293 - 297
Biogenic volatile organoiodine and organobromine hydrocarbons in the Atlantic Ocean from 42°N to 72°S C. SchallK. G. HeumannG. O. Kirst ORIGINAL PAPER Pages: 298 - 305
