نتایج جستجو برای: sample preparation
تعداد نتایج: 568380 فیلتر نتایج به سال:
lon-chromatography, a relatively new technique in a nal yti cal chemistry, has already shown great promise toward solving complex trace analysis problems, in particular the speciat ion and quantitation of allion~. It is especially attractive to the fi e ld of microanalysis. The method of sample preparation, however, is (Tucial in order to realize this capac it y. Existing microanalytical method...
Since the discovery of the diffraction barrier in the late nineteenth century, it has been commonly accepted that with far-field optical microscopy it is not possible to resolve structural details considerably finer than half the wavelength of light. The emergence of STED microscopy showed that, at least for fluorescence imaging, these limits can be overcome. Since STED microscopy is a far-fiel...
With a few exceptions, the micro total analysis systems (mTASs) currently available have failed to live up to the ideal of the miniaturization of multiple laboratory operations onto a single chip. These systems perform sample preparation off chip and only pursue a single function. Hence, the definitive challenge is to interface the processing of real-world biological samples with downstream app...
Over the last decade there has been significant progress in the synthesis of inorganic and hybrid inorganic-organic nanoparticles in solution. Optimizing the synthesis conditions is often dependent on structural characterization of the nanoparticles. Transmission Electron Microscopy (TEM) provides a method for structural characterization that provides both high-resolution details of individual ...
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