Zobrazeno 1 - 10
of 40
pro vyhledávání: '"J. C. Travis"'
Publikováno v:
Journal of clinical pharmacy and therapeutics. 33(5)
BACKGROUND AND OBJECTIVE: Treatment with angiotensin converting enzyme (ACE) inhibitors or angiotensin receptor blockers (ARBs) during pregnancy can cause severe foetal abnormalities. This study aimed to identify the proportion of women of childbeari
Publikováno v:
SPIE Proceedings.
Frequency-stabilized cavity ring-down absorption spectrometry (FS-CRDS) with single-mode excitation using a tunable continuous-wave diode laser is being developed to help support the delivery of reference gas concentration standards. This paper descr
Publikováno v:
Applied Spectroscopy. 36:168-171
The temporal and spatial evolution of the depleted neutral atom density following laser-enhanced ionization in laminar flow flames has been used to characterize the flow velocity of the flame gases. This technique utilizes a low power cw dye laser an
Publikováno v:
Clinical Chemistry. 29:1683-1686
We review atomic flame spectrometry of metals based on the selective laser-enhancement of the rate of atomic ionization. A discussion of basic principles, prior literature, and instrumentation is followed by an overview of analytical figures of merit
Autor:
J. C. Travis, J. D. Fassett
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 43:1409-1422
Publikováno v:
The Journal of Physical Chemistry. 85:2547-2557
Laser-enhanced ionization (LEI) - or the optogalvanic effect in flames - is known to result when a tunable laser is used to significantly populate an excited state of an atomic species in an atmosphere pressure flame. The perturbed ionization rate ma
Publikováno v:
International Journal of Mass Spectrometry and Ion Processes. 54:201-216
Resonance ionization mass spectrometry (RIMS) has been used to study atom plumes produced by thermal vaporization. Experimental results are presented for the elements Fe, Ni, Mo and Re. Ion intensity vs. laser wavelength spectra consistently demonstr
Publikováno v:
Journal of Microscopy. 103:293-303
SUMMARY Uranyl and europium ion-doped fibres of 5–45 μm diameter were prepared which emit in the green and red spectral regions, respectively. Measurements were made of fluorescence flux as a function of fibre length, dopant concentration, slit sh