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Electrodialytic Ion Isolation for Matrix Removal
Analytical Chemistry, 2012We report a fully automated online sample pretreatment system for ionic analytes that extracts the ionic analytes from the sample and largely removes the nonionic sample matrix and can preconcentrate the analyte. Sample pretreatment is a key analytical process; conventional pretreatment is conducted in a difficult to automate batchwise manner.
Shin-Ichi, Ohira +5 more
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How Isolated is Nitrogen in a Matrix?
International Conference on Luminescence - 1984, 1984The doubly forbidden A 3 Σ u + → X 1 Σ g + (Vegard-Kaplan,V-K) emission of the N2 molecule can serve as a probe for its interaction with the neighborhood.
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New Developments in Matrix Isolation Spectroscopy
Chemical Reviews, 19961. Electron Spin Resonance 2116 2. Infrared and Optical Absorption 2117 3. Laser-Induced Fluorescence 2119 III. Quantum Hosts 2122 IV. Matrix Isolation Spectroscopy of Molecular Ions 2124 A. Ion Sources for Matrix Isolation Spectroscopy 2124 B. Spectroscopic Methods 2126 1. Electron Spin Resonance 2126 2. Infrared and Optical Absorption 2126 3.
Vladimir E., Bondybey +2 more
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Electrodialytic matrix isolation for metal cations
Talanta, 2015Electrodialytic ion transfer was studied as a matrix isolation tool for heavy metal determinations. An ion transfer device (ITD) was used for the transfer of heavy metal cations. Under optimized flow rates applied voltage and receptor composition, heavy metal ions were quantitatively transferred at concentrations spanning µg L(-1) to mg L(-1).
Shin-Ichi Ohira +5 more
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On the structure of the matrix isolated water trimer
The Journal of Chemical Physics, 2011Infrared spectra of partially deuterated water trimers have been investigated. It is found that HDO(H2O)2 has a single, bound OD stretching fundamental, (HDO)2H2O two bound OD stretches. (HDO)3 has a single, bound OD stretch and (H2O)3 has a pair of bound OH stretches.
J, Ceponkus, P, Uvdal, B, Nelander
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The Matrix Isolation Spectrum of the CH2+ Ion
Journal of Molecular Spectroscopy, 2002Abstract For CH2+ molecular ions at 5 K we simulate the infrared absorption spectrum, and tabulate all strong absorption lines from 0 to 16 000 cm−1. We use ab initio potential energy, dipole moment, and transition moment surfaces in conjunction with our program system RENNER, which allows for the Renner–Teller effect and spin–orbit coupling in a ...
Bunker, P. +4 more
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Dehydrophenylnitrenes: Matrix Isolation and Photochemical Rearrangements
The Journal of Organic Chemistry, 2007The photochemistry of 3-iodo-2,4,5,6-tetrafluorophenyl azide 8 and 3,5-diiodo-2,4,6-trifluorophenyl azide 9 was studied by IR and EPR spectroscopy in cryogenic argon and neon matrices. Both compounds form the corresponding nitrenes as primary photoproducts in photostationary equilibria with their azirine and ketenimine isomers.
Wolfram, Sander +4 more
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Pair Association in Matrix Isolated Pyridine
The Journal of Chemical Physics, 1970Absorption spectra of pyridine-H5 in frozen nitrogen exhibit concentration dependent sidebands due to pairwise interactions in the Λ10 region at 606 and 607.5 cm−1, in the Λ26 region at 706 and 709 cm−1, and in the Λ14 region at 1442 and 1443 cm−1. For pyridine-D5 pair absorption bands were observed at 584.5, 586(Λ10), 533, 535(Λ26).
TADDEI, GIORGIO +2 more
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Isolation and Characterization ofCaenorhabditis elegansExtracellular Matrix
Biochemical and Biophysical Research Communications, 1996The extracellular matrix (ECM) plays an important structural and functional role in multicellular organisms. Because of the similarities between C. elegans and vertebrate development, this nematode could serve as a simplified model to study the biology of the ECM. In this study, a method for extracting mammalian ECM was adapted for the extraction of C.
M, Lee, H T, Cheung
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Formamide Dimers: A Computational and Matrix Isolation Study
The Journal of Physical Chemistry A, 2007The dimerization of formamide (FMA) has been investigated by matrix isolation spectroscopy, static ab initio calculations, and ab initio molecular dynamics (AIMD) simulations. Comparison of the experimental matrix IR spectra with the ab initio calculations reveals that two types of dimers A and C are predominantly formed, with two and one strong NH...O
Mardyukov, A +4 more
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