UV——Ultraviolet，即紫外光 vis——Visible，即可见光 Extinction——吸收，但药典里一般用Absorption Spectra——光谱 合起来就是紫外-可见吸收光谱，即紫外-可见分光光度法 应用：物质的鉴别、含量测定
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UV/Vis spectra of cyclophanescharacteristic properties of cyclophaneselectronic spectran ]cyclophanesm.n ]paracyclophanesmultibridged [2 n ]cyclophanes and related compoundsm.n ]arenophanesfluorinated cyclophanesheterocyclophanesSummary This chapter contains sections titled: Introduction Characteristic ...
Strong spectral lines 237.83nm, 253.65nm, 275.28nm, 296.73nm, 313.16nm, 334.15nm, 365.02nm,404.66nm, 435.83nm, 546.07nm and 576.96nm; or 486.02nm with deuterium lamp in instrument 656.10nm spectra are corrected; Holmium glass at wavelengths 279.4nm, 287.5nm, 333.7nm, 360....
Article Open access 29 July 2020 Understanding X-ray absorption spectra by means of descriptors and machine learning algorithms Article Open access 13 December 2021 Predicting refractive index of inorganic compounds using machine learning Article Open access 15 October 2024 Introduction...
or486.02nmwith deuteriumlampininstrument 656.10nmspectraarecorrected;Holmiumglassatwavelengths 279.4nm,287.5nm,333.7nm,360.9nm, 418.5nm,460.0nm,484.5nm,536.2nmand637.5nmhavesharp absorptionpeaks,andcanalsobewavelengthcorrected Yes,butbecauseofdifferentsourcesorastimegoesby,there willbeminorchanges Thedoublebeam...
The fundamental initial step of photochemical reactivity is absorption of a photon; however, little guidance has been provided thus far regarding how ultraviolet–visible (UV–vis) light absorption spectra may be used to inform testing strategies for investigational drugs. Here we report the results ...
To enhance the usability of this technique by providing a higher level of operations intelligence, the UV-Vis spectra combined with chemometrics approach offers simplicity, flexibility and applicability. The use of anomaly detection and an early warning was also discussed for drinking water quality ...
UV–vis spectra of solid state H 3PMo 12 xW xO 40 ( x = 0, 3, 6, 9, 12) catalysts were obtained to elucidate the effect of crystalline water molecules and to explore the reduction potentials of the heteropolyacid (HPA) catalysts. The UV–vis spectra of HPA catalysts in the solid st...
101 page 5 "UV-VIS Absorption Spectra" • P e r f o r m a n c e o f t h e t e s t Both cells to be employed should be rinsed with the blank solution and then filled with same. The instrument should be set to scan at a rate appropriate for the required wavelength ...