indubitable 发表于 2025-3-30 09:03:38
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Raman Spectroscopy of Polymeric Materials. Part I—Selected Commercial PolymersRaman spectra of all except the simplest and purest polymers. In many instances it is now possible to record Raman spectra of polymers without any prior purification whatever. Reported here are laser-excited Raman spectra of twelve selected commercial polymeric materials and their infrared counterpa分解 发表于 2025-3-30 22:53:50
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Characterization of Commercial Formulations by Combining Several Chromatographic Techniques with Mulrized and discussed in this paper are diverse commercial formulations. Although several approaches can be employed for the characterization of these formulations, this paper discusses one which we have found to be convenient and reliable. In this approach liquid—solid partition, thin—layer, and gas—勋章 发表于 2025-3-31 06:08:00
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