PXRD的工作原理基于布拉格方程,这是由父子俩威廉·布拉格和威廉·劳伦斯·布拉格在1913年提出的。布拉格方程可以用来描述衍射现象,其中父子俩还因此获得了1915年的诺贝尔物理学奖。 布拉格方程表达了晶体中原子散射X射线时的相干增强条件。对于一个晶体样品,垂直入射的X射线通过晶体晶面时,会被晶体中的原子散射,并发生衍射...
Considering claims on adulteration, in this research, a powder X-ray diffraction (PXRD) methodology was used for the semi-qualitative detection of curcumin in turmeric powder. PXRD tube conditions of 25–45kV, 25–45mA, and scanning conditions (step scan size and time per step) were applied ...
OBJECTIVE: The aim of this study was to develop a powder X-ray diffraction (PXRD) quantification method for investigating the purity of cocrystals. The method developed was employed to study the formation of indomethacin-saccharin (IND-SAC) cocrystals by mechanochemical methods. MATERIALS AND METHODS...
(b) The PXRD pattern and Rietveld refinement results for the NH3-poor Na0.80(4)(NH3)0.6Fe1.86(1)Se2 phase. This pattern comes from three phases: Na0.80(4)(NH3)0.6Fe1.86(1)Se2 (top, 95.4%), FeSe (middle, 2.4%) and Fe7Se8 (bottom, 2.2%). The inset shows the crystal structure ...
1) X-ray powder diffraction(XRD) X-射线粉末衍射法(XRD) 2) X ray diffraction(XRD) X射线粉末衍射(XRD) 3) method of X ray powder diffraction X射线粉末衍射法 例句>> 4) Powder X-ray diffraction (PXRD) 粉末X射线衍射法(PXRD) 5) X-ray powder diffraction ...
XPowder Software has been developed for the analysis of natural minerals and other solid materials, using techniques of Powder X-Ray Diffraction (PXRD).
5) method of X ray powder diffraction X射线粉末衍射法 例句>> 6) Powder X-ray diffraction (PXRD) 粉末X射线衍射法(PXRD)补充资料:X射线粉末衍射法 分子式:CAS号:性质:在X射线衍射分析中,采用单色X射线和粉末状多晶样品进行衍射的一种方法。多晶试样大多数情况是多晶粉末,也可以是多晶片或丝。衍射...
Here we demonstrate the use of second harmonic generation (SHG) microscopy-guided synchrotron powder X-ray diffraction (PXRD) for the detection of trace crystalline active pharmaceutical ingredients in a common polymer blend. The combined instrument is capable of detecting 100 ppm crystalline ritonavir ...
X-Ray Synchrotron Powder Diffraction is a technique that involves using X-rays to analyze the atomic arrangement of crystalline solids by measuring the scattered X-ray intensity as a function of the scattering angle at a fixed X-ray wavelength, providing information about the average crystal structu...
Since the long chain adducts form crystals that are either twinned or too thin for single crystal analysis, powder X-ray diffraction (PXRD) in conjunction with solid-state Fourier-Transform Infrared (FT-IR) and 13C NMR spectroscopies were used in their structural elucidation [8], [26], [27...