Calibration method at the NK-edge using interstitial nitrogen gas in solid-state nitrogen-containing inorganic compounds

被引：41

作者：

Gillespie, Adam W. ^{[1
]}

Walley, Fran L. ^{[1
]}

Farrell, Richard E. ^{[1
]}

Regier, Tom Z. ^{[2
]}

Blyth, Robert I. R. ^{[2
]}

机构：

[1] Univ Saskatchewan, Dept Soil Sci, Saskatoon, SK S7N 5A8, Canada

[2] Univ Saskatchewan, Canadian Light Source Inc, Saskatoon, SK S7N 0X4, Canada

来源：

JOURNAL OF SYNCHROTRON RADIATION | 2008年 / 15卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

XANES; NEXAFS; calibration; nitrogen; K-edge; ammonium; sulfate; phosphate; chloride; nitrate; nitrite; hydroxylamine;

D O I：

10.1107/S0909049508014283

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The standard method of soft X-ray beamline calibration at the N K-edge uses the nu = 0 peak transition of gas-phase N-2. Interstitial N-2 gas trapped or formed within widely available solid-state ammonium- and amine-containing salts can be used for this purpose, bypassing gas-phase measurements. Evidence from non-nitrogen-containing compounds (KH2PO4) and from He-purged ammonium salts suggest that production of N-2 gas is through beam-induced decomposition. Compounds with nitrate or nitrite as anions produce coincident features and are not suitable for this calibration method.

引用

页码：532 / 534

页数：3

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