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Standard Guide to Charge Control and Charge Referencing Techniques in X-Ray Photoelectron Spectroscopy (Withdrawn 2024)
Automaticky přeložený název:
Standardní Průvodce Regulace nabíjení a nabíjení odkazování techniky X - Ray fotoelektronové spektroskopie
NORMA vydána dne 1.6.2015
Označení normy: ASTM E1523-15
Poznámka: NEPLATNÁ
Datum vydání normy: 1.6.2015
Kód zboží: NS-609045
Počet stran: 7
Přibližná hmotnost: 21 g (0.05 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
charge control, charge referencing, charging, X-ray photoelectron spectroscopy ,, ICS Number Code 71.040.50 (Physicochemical methods of analysis)
Significance and Use | ||||||||
5.1 The acquisition of chemical information from variations in the energy position of peaks in the XPS spectrum is of primary interest in the use of XPS as a surface analytical tool. Surface charging acts to shift spectral peaks independent of their chemical relationship to other elements on the same surface. The desire to eliminate the influence of surface charging on the peak positions and peak shapes has resulted in the development of several empirical methods designed to assist in the interpretation of the XPS peak positions, determine surface chemistry, and allow comparison of spectra of conducting and non-conducting systems of the same element. It is assumed that the spectrometer is generally working properly for non-insulating specimens (see Practice E902). 5.2 Although highly reliable methods have now been developed to stabilize surface potentials during XPS analysis of most materials (1.1 This guide acquaints the X-ray photoelectron spectroscopy (XPS) user with the various charge control and charge shift referencing techniques that are and have been used in the acquisition and interpretation of XPS data from surfaces of insulating specimens and provides information needed for reporting the methods used to customers or in the literature. 1.2 This guide is intended to apply to charge control and charge referencing techniques in XPS and is not necessarily applicable to electron-excited systems. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||||||
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