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Laser cladded coatings of TiCN were produced on the surface of titanium. To obtain the optimal techniques, several conditions were tested by varying the laser scanning rate. The choice of shielding gas was also studied. The cladded coatings were then evaluated from the surface mechanics point of view based on their microhardness. The microstructure of some interesting samples was investigated by optical...
An improved HPLC-electrochemical detection (ED) method is described for the analysis of hydroxyurea (HU) in human plasma. After extraction process, HU was determined on a C18 column (250mmx4mm) by the mobile phase (25mM sodium acetate-acetonitrile, 97.5:2.5; pH 6.5). The regression equations were linear (r>0.9990). The precision and accuracy of intra- and inter-batches were all below 5% for relative...
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