实验信息 当样品中的镁浓度较高时，采集 Ca2s 以及 Ca2p 区域谱图。 XPS 光谱解读 当样品中含有镁时，检查 Ca2s 谱峰，避免将 Mg KLL 谱峰误判为 Ca2p 谱峰。 Ca 的几种典型化合物之间的化学位移较小（<1eV）。 在化学测定方面的用途有限。

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Calcium X-ray photoelectron spectra, calcium electron configuration, and other elemental information. Charge referenced to adventitious C1s peak at 284.8eV. In the presence of a significant magnesium concentration, collect Ca2s as well as Ca2p region. In the presence of magnesium, check for Ca2s to prevent misinterpreting Mg KLL as Ca2p.

For the ZnO-doped CaO samples, XPS core levels of Ca 2p can be deconvoluted into four parts, corresponding to Ca 2p3/2 and Ca 2p1/2 in CaO (Ca 2p ½ BE ≈ 346.0 eV and Ca 2p 3/2 BE ≈ …

Ca 2p3/2 binding energy values. Ca 2p3/2-2p1/2 splitting is 3.55 eV (for CaCO3). In survey spectra of samples where magnesium is also present there can be an overlap of the Ca 2p region with Mg KLL structure. In these cases it is better to use the Ca 2s peak for quantification. Standards taken at Surface Science Western. Ca 2p spectrum of CaSO4.

1995年12月1日 · X-Ray Photoelectron Spectroscopy (XPS) photoemission lines of some calcium compounds have been measured. The fine structure and position of the Ca 2 p 3 2 line is discussed. The Wagner diagram of the oxygen KLL transitions is presented. The surface composition of some compounds is calculated.

High-resolution XPS spectra of: (A) Mg2p; (B) O1s; (C) Ca2p; and (D) P2p after AZ31 (solid line) and AZ91 (dashed line) samples exposure to different physiological media for 7 days at 37 °C....

XPS Spectra Calcium (Ca) Compounds The XPS Spectra section provides raw and processed survey spectra, chemical state spectra, BE values, FWHM values, and overlays of key spectra. Atom% values from surveys are based on sample, as received, and Scofield cross-sections. Atom% values are corrected for IMFP and PE.

2008年10月1日 · Two surface analysis techniques, X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectroscopy (TOF-SIMS), were used to differentiate the …

Ca (2p) Chemical State BEs from: “The XPS Library Spectra-Base” Charge Referencing. (N*number) identifies the number of NIST BEs that were averaged to produce the BE in the middle column. Binding Energy Scale Calibration expects Cu (2p3/2) BE = 932.62 eV and Au (4f7/2) BE = 83.98 eV. BE (eV) Uncertainty Range: +/- 0.2 eV.