The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Flow radioactivity counters coupled to liquid chromatography devices cause a systematic bias to the separation by broadening peaks within the radiochromatogram. Such signal smearing may be evaluated on standardization runs with a single peak, using the ratio between Fourier transforms of whole chromatographic data for the measured radioactivity time series (radioactivity channel) and for the concentration...
Free amino acid pools were analysed in Acyrthosiphon pisum reared on Vicia faba L. and on three artificial diets with different amino acid profiles: diets A and B copying the very unbalanced profiles of phloem saps of alfalfa and broad bean respectively, diet C deriving from aphid carcass analysis. Total free amino acid levels ranged from 46.9 ± 2.3 nmol mg -1 fresh weight for aphids...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.