Combination of X-ray photoelectron and solid-state 13C nuclear magnetic resonance spectroscopy in the structural characterisation of humic acids

Monteil-Rivera, Fanny; Brouwer, Eric B.; Masset, Sonia; Deslandes, Yves; Dumonceau, J.

doi:10.1016/s0003-2670(00)01139-9

Cited by 115 publications

(60 citation statements)

References 21 publications

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“…The information yielded by the polyimide spectrum was helpful to characterize the second reference sample, a wellinvestigated HA standard sample (Monteil-Rivera et al 2000;Sierra et al 2005;Plucinski et al 2007;Rodrigues et al 2008). The spectrum is displayed in Fig.…”

Section: Reference Samplesmentioning

confidence: 99%

“…Our approximation of the elemental compositions yields values close to the analytical data, directly taken from the supply company, Sigma Aldrich. In Monteil-Rivera et al (2000), the elemental composition has been determined with an elemental analyzer and with X-ray photoelectron spectroscopy (XPS). Sierra et al (2005) used solid-state CP/MAS 13 C-NMR spectroscopy (CP=cross polarization, MAS=magic angle spinning) for the chemical analysis of this HA sample.…”

Section: Reference Samplesmentioning

confidence: 99%

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Characterization of refractory organic substances by NEXAFS using a compact X-ray source

et al. 2011

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Purpose We present the characterization of environmental samples using near-edge X-ray absorption fine structure (NEXAFS) spectra recorded with an in-house device. We want to point out the feasibility of such an easily accessed complementary technique, if not sometimes alternative to NEXAFS studies performed with synchrotron radiation, as the number of compact setups is increasing. Materials and methods The experiments were carried out using a laser-driven plasma source. We studied heterogeneous samples like refractory organic substances to demonstrate the potential of NEXAFS spectra, achieved by such an instrument, concerning specimens of high chemical complexity.Results and discussion From the respective resonance peaks in the spectra, the presence of certain functional groups, such as aromatic or carbonyl groups, is verified, and the elemental composition is estimated. The results of the reference samples are consistent with the literature. For the environmental samples, external influences of the extraction solvent or fertilizers can be determined from the spectra. Conclusions This could provide the possibility to perform test experiments with samples, which are later studied in more detail with synchrotron light and might as well give an impulse on the broader spread of the application of NEXAFS spectroscopy.

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Section: Reference Samplesmentioning

confidence: 99%

Section: Reference Samplesmentioning

confidence: 99%

Characterization of refractory organic substances by NEXAFS using a compact X-ray source

et al. 2011

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“…The concentration of elements can be determined with an accuracy of up to 0.1 atm%. Chemical states of elements can also be determined by peak synthesis (Briggs and Seah 1990;Monteil-Rivera et al 2000;Olivella et al 2002;Paoletti et al 2003).…”

Section: Introductionmentioning

confidence: 99%

Surface Chemical Composition of Size-Fractionated Urban Walkway Aerosols Determined by X-Ray Photoelectron Spectroscopy

Cheng

Weng

et al. 2013

Aerosol Science and Technology

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Most aerosol chemical characterization studies to date involve bulk particle analysis. The surface chemical and physical properties of aerosol particles have rarely been analyzed, despite the particles' potential health impacts and interactions with gas in the atmosphere. Aerosol particles ranging from 0.056 to 10 μm in size collected using a 10-stage impactor sampler from a busy walkway in a downtown area of Hong Kong were analyzed using X-ray photoelectron spectroscopy (XPS), a technique providing both elemental and chemical state information about the particle surfaces. Six key elements were detected: nitrogen (N), sulfur (S), calcium (Ca), silicon (Si), oxygen (O), and carbon (C). Carbon was the dominant species on the surfaces of all particles regardless of their sizes. A higher carbon concentration was found on the surfaces of the 0.056-0.32 μm particles. The N, Si, Ca, and O concentrations were higher on the surface of the 3.2-10 μm particles than in the smaller size fractions. Sulfur was mainly found on the surface of the 0.32-1.8 μm particles. High-resolution scans of C, N, and S were obtained to provide chemical state information about these elements. Aromatic C-H and aliphatic C-H were found to be the major carbon chemical states. Fullerenic carbon was detected on the surfaces of the finest (0.056-0.32 μm) particles. Oxygen-and nitrogen-containing organics were found on the surfaces of the 0.32-1.8 μm particles. Sulfur was present in the form of sulfates as expected. Ammonium salts, amide, and nitrate were found to form especially on the surfaces of aerosol particles in the nucleation, accumulation, and coarse modes, respectively. Silicates and carbonates were only discovered on the surfaces of coarse-mode particles (3.2-10 μm). The results suggest that both the chemical

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“…This technique has many advantages in that it is nondestructive, and is surface sensitive, with chemical shift (Faude and Goschnick 1997;Pietrzak and Wachowska 2006). In addition, the use of XPS core-level peaks to derive chemical structure information of organic solids by fitting peak intensity and position features, is the standard XPS application (Briggs and Seah 1990;Monteil-Rivera et al 2000;Olivella et al 2002a,b;Paoletti et al 2003;Qi et al 2006). Therefore, the XPS technique has been used to investigate the elemental composition and chemical states of aerosol surfaces (Albers et al 2000;Hutton and Williams 2000;Zhu et al 2001;Lazzeri et al 2003;Paoletti et al 2003;Atzei and Rossi 2004;Qi et al 2006;Gilham et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Surface Characterization of Aerosol Particles in Guangzhou, China: A Study by XPS

Song

Peng

2009

Aerosol Science and Technology

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X-ray photoelectron spectroscopy (XPS) is a powerful techniquefor determining the surface chemical composition of atmospheric particles. In this article, we employed XPS to study atmospheric particles collected from Guangzhou city in typical sites and seasons. The results showed that the weight percentage of carbon, oxygen, nitrogen, and sulfur were about 70.5-87.1%, and these species dominated the surface structure of the particles independent of the collection site and season. Inorganic elements including Si, Na, Ca, Cl, Fe, K, Al, and Cu were also found on the particle surfaces. The high-resolution XPS spectra revealed: (1) High aromatic and aliphatic C-H, and other oxidized carbons were found on the surface of particles. (2) The nitrogen species were characterized by pyridinic, pyrrolic/amide, quaternary type nitrogen functionalities, and nitrate groups, indicating that inorganic and organic N species are both important components of N-containing particles. (3) Sulfate and sulfone groups were also present on the surface and were important components. The oxidized groups of C, N, and S were higher in winter samples, consistent with the monsoon weather of Guangzhou in winter, which is favorable for the formation of oxidized species. A comparison between total and surface analyses showed that the surface of particles was relatively high in organic carbon, NO

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Combination of X-ray photoelectron and solid-state 13C nuclear magnetic resonance spectroscopy in the structural characterisation of humic acids

Cited by 115 publications

References 21 publications

Characterization of refractory organic substances by NEXAFS using a compact X-ray source

Characterization of refractory organic substances by NEXAFS using a compact X-ray source

Surface Chemical Composition of Size-Fractionated Urban Walkway Aerosols Determined by X-Ray Photoelectron Spectroscopy

Surface Characterization of Aerosol Particles in Guangzhou, China: A Study by XPS

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