Sulfur K‐edge X‐ray absorption spectroscopy for determining the chemical speciation of sulfur in biological systems

FEBS Letters

Pickering, Ingrid J.¹  Prince, Roger C.³  George, Graham N.¹  Divers, Thomas² 

[1] Stanford Synchrotron Radiation Laboratory, Stanford University, P.O. Box 4349, MS 69, Stanford, CA 94309, USA;College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA;Exxon Research and Engineering Company, Annandale, NJ 08801, USA

关键词: Sulfur;    X-ray absorption spectroscopy;   

DOI  :  10.1016/S0014-5793(98)01402-1

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Sulfur is an essential biological element, yet its biochemistry is only partially understood because there are so few tools for studying this element in biological systems. X-ray absorption spectroscopy provides a unique approach to determining the chemical speciation of sulfur in intact biological samples. Different biologically relevant sulfur compounds show distinctly different sulfur K-edge X-ray absorption spectra, and we show here, as an example, that this allows the deconvolution of the sulfur species in equine blood.

【 授权许可】

Unknown