Total solid-surface room-temperature luminescence for analysis of mixtures

1984 ◽  
Vol 56 (6) ◽  
pp. 913-918 ◽  
Author(s):  
V. P. Senthilnathan ◽  
R. J. Hurtubise
Keyword(s):  
Solid Surface ◽  
Room Temperature ◽  
Total Solid ◽  
Room Temperature Luminescence

Room-Temperature Luminescence of a Variety of Compounds on 1% α-Cyclodextrin/NaCl Mixture

1989 ◽  
Vol 43 (5) ◽  
pp. 810-812 ◽  
Author(s):  
Marsha D. Richmond ◽  
Robert J. Hurtubise
Keyword(s):  
Solid Surface ◽  
Room Temperature ◽  
Lower Cost ◽  
Model Compounds ◽  
Figures Of Merit ◽  
Room Temperature Luminescence ◽  
Analytical Figures Of Merit

With the use of model compounds of widely different functionality, it was found that a 1% α-cyclodextrin/NaCl mixture could be used in place of an 80% α-cyclodextrin/NaCl mixture to obtain solid surface room-temperature fluorescence (RTF) and phosphorescence (RTP) data. Analytical figures of merit are reported for four compounds. The use of a smaller percentage of α-cyclodextrin results in lower cost; no loss of analytical integrity, compared with that for an 80% α-cyclodextrin/NaCl mixture; and easier handling of the α-cyclodextrin/NaCl mixtures.

Determination of terbium with solid surface room temperature luminescence optosensing

1996 ◽  
Vol 322 (3) ◽  
pp. 167-171 ◽  
Author(s):  
Wei Shoulian ◽  
Lu Jianzhong ◽  
Zhang Zhujun
Keyword(s):  
Solid Surface ◽  
Room Temperature ◽  
Room Temperature Luminescence

Room-Temperature Luminescence of Several Compounds on an α-Cyclodextrin-NaCl Mixture

1986 ◽  
Vol 40 (6) ◽  
pp. 790-794 ◽  
Author(s):  
J. Bello ◽  
R. J. Hurtubise
Keyword(s):  
Organic Compounds ◽  
Solid Surface ◽  
Room Temperature ◽  
Limit Of Detection ◽  
Analytical Potential ◽  
Room Temperature Luminescence

Fifty-five organic compounds of various sizes and functionalities were investigated for solid-surface room-temperature fluorescence (RTF) and phosphorescence (RTP) on an 80% α-cyclodextrin-NaCl matrix. Forty-two of these compounds showed either RTP and/or RTF on this matrix. The relative RTP intensities of the compounds were compared, and the results showed that triphenylene gave the strongest RTP signal, while phenanthridine gave the weakest signal. The range of the RTP limit of detection of the phosphorescent compounds on an 80% α-cyclodextrin-NaCl mixture was determined to be between 0.2 ng and 15 ng. The results showed the general analytical potential of this approach because of the large number of compounds yielding luminescence signals and the selectivity and sensitivity achieved.

Non-adhesive lotus and other hydrophobic materials

2008 ◽  
Vol 366 (1870) ◽  
pp. 1539-1556 ◽  
Author(s):  
David Quéré ◽  
Mathilde Reyssat
Keyword(s):  
Solid Surface ◽  
Room Temperature ◽  
Water Repellency ◽  
Short Review ◽  
Water Repellent ◽  
Practical Applications ◽  
Hydrophobic Materials ◽  
Volatile Liquid ◽  
Air Cushion ◽  
The Stability

Superhydrophobic materials recently attracted a lot of attention, owing to the potential practical applications of such surfaces—they literally repel water, which hardly sticks to them, bounces off after an impact and slips on them. In this short review, we describe how water repellency arises from the presence of hydrophobic microstructures at the solid surface. A drop deposited on such a substrate can float above the textures, mimicking at room temperature what happens on very hot plates; then, a vapour layer comes between the solid and the volatile liquid, as described long ago by Leidenfrost. We present several examples of superhydrophobic materials (either natural or synthetic), and stress more particularly the stability of the air cushion—the liquid could also penetrate the textures, inducing a very different wetting state, much more sticky, due to the possibility of pinning on the numerous defects. This description allows us to discuss (in quite a preliminary way) the optimal design to be given to a solid surface to make it robustly water repellent.

Solid surface room-temperature phosphorescence of pesticides

1984 ◽  
Vol 56 (6) ◽  
pp. 1030-1033 ◽  
Author(s):  
Joseph J. Vannelli ◽  
E. M. Schulman
Keyword(s):  
Solid Surface ◽  
Room Temperature ◽  
Room Temperature Phosphorescence
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