Im nächsten Heft: Probiotika

Rapid and Simultaneous Determination of the Iodine Value and Saponification Number of Edible Oils by FTIR Spectroscopy

Abstract A rapid method was developed to facilitate the Fourier transform infrared (FTIR) spectroscopy analysis of edible oils using disposable polyethylene (PE) films as sample support for the determination of the iodine value (IV) and saponification number (SN). For direct IV analysis ... mehr

Recent Progress in [11C]Carbon Dioxide ([11C]CO2) and [11C]Carbon Monoxide ([11C]CO) Chemistry

[11C]Carbon dioxide ([11C]CO2) and [11C]carbon monoxide ([11C]CO) are two attractive precursors for labelling the carbonyl position (C=O) in a vast range of functionalised molecules (e.g. ureas, amides and carboxylic acids). The development of radiosynthetic methods to produce functionalise ... mehr

Facile synthesis of high specific activity 4‐[1‐14C]butyl‐1,2‐diphenylpyrazolidine‐3,5‐dione (phenylbutazone) using nucleophilic substitution

Metabolism, environmental fate, and low concentration food residue studies would be facilitated by the use of radiolabeled test articles which can be readily quantified within complex matrices. However, radiochemical approaches for such studies require high specific activities to allow anal ... mehr