Screening and detection of the new 1,4-benzodiazepine derivative metaclazepam

A sensitive screening method is described for the new 1,4-benzodiazepine derivative metaclazepam, by means of its metabolite 2-amino-5-bromo-2-chlorobenzophenone. Other analytical data for the detection of metaclazepam and its main metabolites are also reported.This work contains results from the planned dissertation by W. R. Schneider.Dedicated in honour to Prof. Dr. H. Oelschläger on the occasion of his 65th birthday.     

Frobeniusautomorphismen endlicher Gruppen

Ohne ZusammenfassungHerrnGottfried Köthe zum 60. Geburtstag am 25. 12. 1965 gewidmet     

Die Pyrolyse der Kupferronate von Scandium. Yttrium und den Seltenen Erden

Analytical and Bioanalytical Chemistry -     

A small gaussian basis set for non-empirical all-electron SCF calculations on iodine compounds

A small gaussian lobe basis is given for MO SCF calculations on iodine compounds within reasonable computing times. The reliability of the calculations is tested by a comparison of the calculated with the experimental X-ray fluorescence spectrum of iodine. The agreement of both, as well as the correspondence of calculated and experimental physical properties of diatomic compounds, indicate the basis to be suitable for a quantum chemical treatment of larger molecules containing this element.     

Investigations on the determination of NO with galvanic ZrO2 solid electrolyte cells

In order to demonstrate the usefulness of gassymmetrical galvanic ZrO₂ solid electrolyte cells for the determination of NO, cell tensions caused by catalytically different active electrodes and thereby different oxygen partial pressures in N₂/NO mixtures with a low oxygen concentration (<50 vol.-ppm) were measured in the temperature range of 500 to 800°C. Separate investigations demonstrated that the catalytic activity of Pt decreases with increasing sinter temperature (1000 to 1300°C), but is higher than the activity of perovskite type oxides La_1?xSr_xMeO₃ (x=0.1.... 0.5; Me=Co, Mn, Fe, Cr). The activity of the perovskites decreases in the order Co>Mn ≈ Fe>Cr. Between different Pt electrodes changes of cell tension were measured when alternating between pure and NO containing nitrogen (e.g. 19.7 mV with 0.4 vol.-% NO). Cells with a Pt electrode and a perovskite electrode produce higher changes of the cell tension, but without going to zero in pure nitrogen due to own oxygen potentials of the mixed oxides.     

Hartree-Fock-calculation of parity-violation in cesium

We present a relativistic Hartree-Fock calculation of the parity violatingE1-matrixelement of the 6s?7s transition in cesium. Our resultE1= ?8.4·10^?12 iea ₀ for sin² θ _w = 0.22 is in good agreement with the experimental value. We also give a general discussion of the consequences of a violation of discrete symmetries for the solutions of the Dirac equation.