Solid-state linear-dichroic infrared (IR-LD) spectroscopy, using an orientation technique as a suspension in nematic liquid crystal, has been carried out of Aspirin polymorphs (forms I and II). Reducing-difference procedure for polarized IR-spectra interpretation has been applied for structural ...
Comprehensive Forensic FT-IR Collection Library Listing – 4,286 spectra This extensive library contains materials not only of forensic interest but also for general problem solving and identification of unknown substances in industry and academia. The wide range of items include drugs, clandestine lab...
Figure 6.Top: Mid-IR correlation images of a pharmaceutical tablet. The images show the spatial distribution of the tablet components based on the Mid-IR spectra. The red areas indicate high correlation with the spectra of the material specified and blue areas indicate an extremely low contributio...
(Thermography) NightVisionGoggles aspirin •SpektroskopiIRmengukurenergipanasatauenergi termaldalamsuatumolekul •SpektroskopiIRmengukurabsorpsicahayayang disebabkanolehvibrasireganganatautekukanikatan dalammolekul. •EnergiIRbersesuaiandenganenergireganganikatan dalammolekul •Jenisikatanyangberbedamenyerapp...
aspirincomputationgeneral chemistryhands-on learningIRmolecular modelingmolecular propertiessynthesisAn exercise to compute and visualize the IR spectra of small organic molecules was incorporated into a general chemistry laboratory module on the synthesis of aspirin. The effectiveness of the computation鈥搗isu...
Using in-situ FT-IR spectroscopy methods has been developed for analyzing and monitoring dissolutions of pharmaceutical APIs. The accuracy of this technique was found to be 卤 3% relative to HPLC and UV/Vis Spectroscopy. A dynamic analysis of the dissolution and subsequent hydrolysis of aspirin ...
Solid complexes have been prepared and characterized by IR, UV-Vis, elemental analysis, and H-1 NMR. Indomethacin forms complexes with Cd(II), Ce(III), and Th(IV) ions in molar ratios (ligand: metal) (2: 1), (3: 1), and (4: 1), respectively. The IR spectra of the complexes ...