Comparison of HPLC and CZE methods for analysis of DOTA-like esters--reaction intermediates in synthesis of magnetic resonance contrast agents.

RP-HPLC and non-aqueous CZE methods were evaluated for qualitative and quantitative analysis of esterified macrocyclic compounds of the DOTA family (DOTA=1,4,7,10-tetraazacyclododecan-1,4,7,10-tetraacetic acid). This group of compounds represents important reaction intermediates in synthesis of magnetic resonance contrast agents. Calibration curves in the concentration range from 1.

Relaxation and luminescence studies on hydrated bipyridyl- and terpyridyl-based lanthanide complexes.

The synthesis of the novel ligand L2, based on a 2,2'-bipyridine functionalized by a carboxylate function and a methyleneiminodiacetate group in positions 6 and 6', is described. Its europium complex, [EuL2(H(2)O)(3)], has been prepared and characterized. The spectroscopic properties of [EuL2(H(2)O)(3)] were studied by means of absorption, and both steady-state and time-resolved luminescence spectroscopy.

[Use of assessment of aggregation of thrombocytes induced by cationic propyl gallate to estimate recurrence of cardiovascular complications].

Introduction: Recently resistance to an acetylsalicylic acid (ASA) administration has been a frequently mentioned problem. However, to identify ASA nonresponsive patients (ASA resistance) is difficult and common examination procedures can contain important preanalytic, analytic and postanalytic mistakes. Recently a possibility to use aggregometry after induction with cationic propyl gallate (CPG) has been discussed in this context; it's a robust, highly sensitive, and specific method for ASA resistance estimates.

[An empiric study of postpartum states using Lüscher's color test].

In order to map the mental state in the early puerperium the authors gave to a group of 100 women for five days after delivery Lüscher's colour test. Based on the assembled data a tentative average norm for the post-partum state was elaborated: 54312067 (i.e.