We examine selective reflection (SR) spectrum of an Airy beam at an interface between a dielectric and a homogeneous atomic medium. It is shown that both the general reflection (GR) and the SR of Airy beams exhibit accelerating dynamics with a parabolic trajectory, however, the accelerating rate for the SR is slightly greater than that for the GR. Due to interaction of atoms and the Airy beams ...

Recently, we reported evidence for the generation of a symmetrical fluoronium ion (a [C-F-C](+) interaction) in solution from a cage-like precursor, relying heavily on a single isotopic-labeling experiment. Paraphrasing the axiom that a strong claim must be met by as much evidence as possible, we seek to expand upon our initial findings with comprehensive labeling studies, rate measurements, ki...

A method aimed at poten charged ionophores in ion surements of segmented s of ion association requires ment of the sandwichmu ionophore complexationm evaluated. Association of Experimental results are with commonly used sites bis[4-(1,1,3,3-tetramethyl

Hexahomotrioxacalix[3]arenes, commonly called oxacalix[3]arenes, were first reported in 1962. Since then, their chemistry has been expanded to include numerous derivatives and complexes. This review describes the syntheses of the parent compounds, their derivatives, and their complexation behaviour towards cations. Extraction data are presented, as are crystal structures of the macrocycles and ...

Two analytical procedures, dry combustion and acid extraction, were compared for the preparation of soft animal tissues and other biological samples for determination of fluoride with an ion selective electrode. Both methods were suitable for determining F in the range of 0.5 to 10.0 μg/g with less than 6% error. The combustion method is less laborious but is more accurate. The extraction metho...

We found the Easy very easy to run and without te#{233}hnique-dependent steps in the procedure. Operators need not have a high level of skill. Calibration is stable for one month, except for the ion-selective electrodes, which must be calibrated every two days. In conclusion, we found the Easy satisfactory in operational and analytical performance. The analyzer is well suited for use in the eme...

Excitation and localization of surface plasmon polariton modes in metal-dielectric structures can be utilized to construct nanophotonic materials and devices with tuneable optical dispersion. We present a selective polariton generator (SPG) device that demonstrates switching of light transmission based on surface plasmon antennae principles. This polarization-sensitive structure selectively gen...

Expanding upon recent applications of interfacing electricity with centrifugal microfluidic platforms, we introduce electrochemical velocimetry to monitor flow in real-time on rotating fluidic devices. Monitoring flow by electrochemical techniques requires a simple, compact setup of miniaturized electrodes that are embedded within a microfluidic channel and are connected to a peripherally-locat...

For most chemists, potentiometry with ion-selective electrodes (ISEs) primarily means pH measurements with a glass electrode. Those interested in clinical analysis might know that ISEs, routinely used for the determination of blood electrolytes, have a market size comparable to that of glass electrodes. It is even less well known that potentiometry went through a silent revolution during the pa...

Methods for the determination of fluorine in a variety of matrices are reviewed with particular attention to those techniques which are widely adopted as routine methods. The fluoride ion-sensitive electrode is a very successful potentiometric technique for the determination of fluoride in aqueous solution and it has largely replaced the various colorimetric methods formerly used. However it is...