Centrifugal fast analyser

A combined method including TLC, HPLC, GC-MS and FTIR was employed for the study of the mechanism of the degradation of Navitan Fast Blue S5R by Pseudomonas aeruginosa. The culture medium containing the dye and its decomposition products was centrifuged and analysed by HPLC. The lyophilized supernatant was investigated by TLC... 

Centrifugal Fast Analyzer for Biochemical and Immunological Analyses,... 

Protein precipitation is used routinely in bioanalytical laboratories in the pharmaceutical industry. Plasma is mixed with an excess (3 to 5 times) of organic solvent (typically acetonitrile or methanol) or an acid such as formic acid. The proteins precipitate out of solution, the sample is centrifuged, and the supernatant is analyzed. While this method is relatively fast and simple, the extract contains salts and lipids that can interfere with subsequent analyses. Often, a second technique such as SPE is used for further cleanup. Table 2.4 exhibits various samples that... 

This instrument was designed [16] to fill a need for fast, reproducible sedimentation analyses in the sub-micron size range. The heart of the instrument is a hollow, x-ray transparent, disc which, under normal operating conditions, contains 20 ml of suspension at a concentration of around 0.2% by volume. The centrifuge speed is selectable in the range 750 to 6000 rpm. The default condition is for the source and detector to remain stationary for 1 minute at a radial position of 48.00 mm and then to scan towards the surface. Total run time is normally 8 min. 

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