Molecular information in static SIMS for the speciation of inorganic compounds

Ham, Rita Van; Adriaens, Annemie; Vaeck, Luc Van; Gijbels, R.; Adams, F.

doi:10.1016/s0168-583x(99)00750-8

Cited by 24 publications

(25 citation statements)

References 6 publications

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“…Polyatomic primary ReO 4 − ions were used with the energy of 5.5 keV and a primary ion current of 570 pA. An area with a diameter of 2.5 mm was randomly hit, while the total ion dose was kept within 2 × 10 12 ions cm −2 . The measurements were performed using a buffer gas pressure of 3.10 −5 mbar, a leakage ring voltage of +20 V and −60 V for positive and negative ions, respectively, an ionisation time of 1-4 ms and 60 ms for positive and negative ions, respectively, a low mass cut-off between m/z 15 and 35; and a delay time of 0 ms.…”

Section: Instrumentationmentioning

confidence: 99%

“…The ReO 4 − gun is operated in the continuous mode and delivers about 180 pA in a spot on the sample of 2.5 mm 2 . The mass range was scanned from m/z 5 to 400 in steps of 0.2 amu or 1 amu and only the first quadrupole was used as a mass filter except for the MS-MS experiments.…”

Section: Instrumentationmentioning

confidence: 99%

“…Fig. 1 shows the positive ion mass spectra recorded with IT and TQ S-SIMS from the untreated clay fraction using similar ReO 4 − primary ion bombardment conditions. Most of the signals simply refer to atomic ions.…”

Section: Samplesmentioning

confidence: 99%

“…analyte molecule attached to a stable ion) [3][4][5][6][7][8][9][10]. Additionally, the method can also generate spatially-resolved chemical information, which is valuable for the characterisation of heterogeneous samples [1,2,[11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…KBr was chosen as model system as its behaviour in S-SIMS as a pure compound has previously been investigated in detail [3,4]. The experimental strategy of the study involves the adsorption of KBr from aqueous solution with different concentrations on the clay or bulk fraction.…”

Section: Introductionmentioning

confidence: 99%

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Static secondary ion mass spectrometry (S-SIMS) for the characterization of surface components in mineral particulates

Ham

Vaeck

Adriaens

et al. 2006

Talanta

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The feasibility of static secondary ion mass spectrometry (S-SIMS) for the detection of molecule specific information from complex materials, such as natural clay and soil samples, has been investigated. Ion trap (IT), as well as triple quadrupole (TQ) instruments, have been used for mass analysis. Secondary ion images have been acquired using time-of-flight (TOF) S-SIMS. The generation of molecular adduct ions from thin and thick layers on the mineral substrates has been investigated using KBr as a simple model system. Results show that molecular adducts of KBr can be indeed detected from the spiked materials. However, the concentrations of the spiking solutions have to be significantly larger than expected from the surface area measured by gas adsorption techniques. In addition imaging analysis has evidenced that the detection of adduct ions in the mass spectra directly relates to the presence of local micro-crystallites.

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Section: Instrumentationmentioning

confidence: 99%

Section: Instrumentationmentioning

confidence: 99%

Section: Samplesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Static secondary ion mass spectrometry (S-SIMS) for the characterization of surface components in mineral particulates

Ham

Vaeck

Adriaens

et al. 2006

Talanta

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Surface oxidation of styrene butadiene copolymers: Study by laser ablation and secondary ion mass spectrometry

Ruch¹,

Boes²,

Zimmer³

et al. 2003

J of Applied Polymer Sci

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ABSTRACT:The capabilities of ion bombardment and laser ablation coupled to mass spectrometry as independent techniques to investigate the surface thermooxidative stability of polystyrene, polybutadiene polymers, and styrene butadiene rubber (SBR) copolymers were investigated. Surface chemical modifications were detected according to the polymeric structure. The degradation products detected by static secondary ion mass spectrometry appeared at m/z 29, 43, and 55. Their compositions were related to the general formulae C n H m O ϩ with n ϭ 1-3 and m ϭ 1-3 for polybutadiene and styrene butadiene copolymers, whereas polystyrene was not affected by the aging treatment. The C n H m O ϩ ions result from butadiene unit degradation. The laser ablation ionization Fourier transform ion cyclotron resonance mass-spectrometry results confirmed the detection of C n H m O ϩ ions. Finally, it may be considered that the surface thermooxidative process of SBR copolymers begins with butadiene unit degradation. The development of butadiene unit oxidation showed a dynamic oxidation phase, which coincided with a loss of unsaturation. The influence of the polymer conformation (blocked, branched, and random) on the surface oxidation for 30% styrene SBR compounds was also studied.

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Laser ablation and secondary ion mass spectrometry of inorganic transition‐metal compounds. Part I: comparison between static ToF‐SIMS and LA‐FTICRMS

Aubriet¹,

Poleunis²,

Müller³

et al. 2006

J. Mass Spectrom.

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Most of the first-row transition-metal oxides, M(A)O(B) (M = Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn) were examined by static secondary ion mass spectrometry (s-SIMS) and laser ablation/ionization Fourier transform ion cyclotron resonance mass spectrometry (LA-FTICRMS). Positive and negative ions show strong correlation between the studied oxide and the detected cluster ions. Specific M(x)O(y) (+/-) species were systematically observed with both MS techniques for each investigated M(A)O(B) transition-metal oxide. Moreover, the ion composition and ion distribution are greatly dependent on the ionization technique. Laser ablation (LA)/ionization leads to larger cluster ions (ionic species with nearly hundred atoms were in particular detected for Sc2O3 and Y2O3 oxides), whereas hydrogenated, dihydrogenated, and sometimes trihydrogenated species were observed in s-SIMS. However, the ion distribution for a given M(x)O(y) (+/-) ion series (i.e. ions including the same number of metal atoms M) generally presented important similarities in both techniques.Finally, it was demonstrated that the chemical state of metal atoms in the observed ionic species is closely dependent on the metal electronic valence shell. High valence states (+III, +IV, +V, and +VI) are favored for metals with a less-than-half full valence shell configuration, whereas for other first-row transition metals (manganese, iron, cobalt, nickel, copper and zinc) lower metal valence states (0, +I or, +II) are involved.

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Molecular information in static SIMS for the speciation of inorganic compounds

Cited by 24 publications

References 6 publications

Static secondary ion mass spectrometry (S-SIMS) for the characterization of surface components in mineral particulates

Static secondary ion mass spectrometry (S-SIMS) for the characterization of surface components in mineral particulates

Surface oxidation of styrene butadiene copolymers: Study by laser ablation and secondary ion mass spectrometry

Laser ablation and secondary ion mass spectrometry of inorganic transition‐metal compounds. Part I: comparison between static ToF‐SIMS and LA‐FTICRMS

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