The high-resolution terahertz absorption spectrum of the large-amplitude intermolecular donor librational band ν of the homodimer (HCN)2 has been recorded by means of long-path static gas-phase Fourier transform spectroscopy at 207 K employing a highly brilliant electron storage ring source. The rovibrational structure of the ν band has the typical appearance of a perpendicular type band of a Σ...

Dynamic SIMS imaging is proposed to map sub-cellular distributions of isotopically labelled, exogenous compounds. NanoSIMS imaging allows the characterisation of the intracellular transport pathways of exogenous molecules, including peptide vectors employed in innovative therapies, using stable isotopes as molecular markers to detect the compound of interest. Shiga toxin B-subunit (STxB) was ch...

Affinity of fluoride-containing polyatomic anions for the formation graphite intercalation compounds (GICs) in aqueous solutions was investigated byoperandoanalysis.

The relatively recent technology of collision/reaction cell (CRC) has become widely used with quadrupole ICP-MS (ICP-QMS) to remove polyatomic ions, which can cause problematic spectral interferences on analytes in complex matrices. By utilizing CRC, background equivalent concentrations (BECs) can be reduced to the ppt or sub-ppt level for almost all elements in semiconductor grade chemicals. I...

An ordered sequence of the coordinating ability of a series of polyatomic monoanions has been established on the basis of structural parameters derived from their interaction with a disilver(I) metallacyclophane skeleton in isostructural complexes.

Abstract Ammonia (NH3) is the first polyatomic molecule detected in interstellar medium. Both its spectroscopic and collisional properties have been extensively studied earlier, NH3 was often used laboratory astrophysics studies to compare high-level scattering calculations with state-of-the-art experiments. Nevertheless, some of important remain unresolved. In this paper we report state-to-sta...

The recent detections of electric-quadrupole (E2) transitions in water vapor and magnetic-dipole (M1) carbon dioxide have opened a new field molecular spectroscopy. While their present status, the spectroscopic databases provide only electric-dipole (E1) for polyatomic molecules (H2O, CO2, N2O, CH4, O3…), possible impact weak E2 M1 bands to modeling Earth planetary atmospheres has be addressed....

This application note illustrates the advanced analytical performance and robustness of the Agilent 7700s/7900 ICP-MS for the direct determination of metallic impurities in high purity concentrated hydrochloric acid (HCl). The 7700s/7900 incorporates an Octopole Reaction System (ORS), which effectively removes polyatomic interferences, allowing ultimate detection limits to be achieved for eleme...

Introduction Inductively Coupled Plasma Mass Spectrometry (ICP-MS) typically provides detection limits in the low-ppt to sub-ppt range for all but a few of over 70 elements. Unfortunately, for a handful of elements, conventional ICP-MS cannot provide the best possible detection limits. The detection limits for these elements are limited by plasma or sample matrix-based polyatomic interferences....

A new method, non-Markovian quantum-classical approximation (NQCA), is suggested to model the photoisomerization of polyatomic molecules. The NQCA method can be successfully applied to follow the photoisomerization process for a wide class of reacting systems, namely, those for which the time scale required for the equilibration in the phase space of the potential energy surface (PESs) is short...