Synthesis and evaluation of a novel rhodamine B-based ‘off-on’ fluorescent chemosensor for the selective determination of Fe3+ ions

2017 ◽  
Vol 242 ◽  
pp. 921-931 ◽  
Author(s):  
Hailang Chen ◽  
Xiaofeng Bao ◽  
Hai Shu ◽  
Baojing Zhou ◽  
Renlong Ye ◽  
...  
Keyword(s):  
Rhodamine B ◽  
Fluorescent Chemosensor ◽  
Selective Determination

Template-directed synthesis of Sm2Ti2O7 nanoparticles: a FRET-based fluorescent chemosensor for the fast and selective determination of picric acid

2020 ◽  
Vol 44 (38) ◽  
pp. 16442-16451 ◽  
Author(s):  
Zohreh Kayhomayun ◽  
Kamal Ghani ◽  
Kiomars Zargoosh
Keyword(s):  
Picric Acid ◽  
Fluorescent Chemosensor ◽  
Selective Determination ◽  
Directed Synthesis

Fluorescence “turn off” detection of picric acid using a Sm2Ti2O7 nanoprobe.

scholarly journals A Potentiometric Rhodamine-B Based Membrane Sensor for the Selective Determination of Chromium Ions in Wastewater

2005 ◽  
Vol 21 (6) ◽  
pp. 673-678 ◽  
Author(s):  
Saad S. M. HASSAN ◽  
M. S. EL-SHAHAWI ◽  
A. M. OTHMAN ◽  
M. A. MOSAAD
Keyword(s):  
Rhodamine B ◽  
Membrane Sensor ◽  
Selective Determination ◽  
Chromium Ions

Laser optoacoustic detection of trace concentration levels of ethylene, vinylchloride, and styrene in the atmosphere

1989 ◽  
Vol 54 (10) ◽  
pp. 2667-2673 ◽  
Author(s):  
Vojtěch Steiner ◽  
Pavel Engst ◽  
Zdeněk Zelinger ◽  
Milan Horák
Keyword(s):  
Detection Limit ◽  
Emission Line ◽  
Laser Line ◽  
Laser Source ◽  
Trace Concentration ◽  
Selective Determination ◽  
Hygienic Standard ◽  
Trace Concentrations ◽  
Concentration Levels

The optoacoustic analyzer with a tunable CO2 laser source employed in the present work permits a selective determination of ethylene in trace concentrations higher than 5 ppb (=detection limit for the 10P(14) emission line of the CO2 laser, ν = 949.5 cm-1) and of vinylchloride higher than 42 ppb (= detection limit for the 10P(22) CO2 laser line, ν= 942.4 cm-1). this method covers for both compounds the concentration range corresponding to the hygienic standard. It can be also used for the determination of styrene vapour with concentrations higher than 1.5 ppm.

Novel palladium(II) selective membrane electrode based on 4-[(5-mercapto-1,3,4-thiadiazol-2-ylimino)methyl]benzene-1,3-diol

2010 ◽  
Vol 75 (5) ◽  
pp. 563-575 ◽  
Author(s):  
Moslem Mohammadi ◽  
Mehdi Khodadadian ◽  
Mohammad K. Rofouei
Keyword(s):  
Limit Of Detection ◽  
Membrane Electrode ◽  
Aqueous Samples ◽  
Selective Determination ◽  
Poly Vinyl Chloride ◽  
Selective Membrane ◽  
Ph Range ◽  
Palladium Content ◽  
Methyl Benzene

A plasticized poly(vinyl chloride) membrane electrode based on 4-[(5-mercapto-1,3,4-thiadiazol-2-ylimino)methyl]benzene-1,3-diol (L) for highly selective determination of palladium(II) (in PdCl42– form) is developed. The electrode showed a good Nernstian response (29.6 ± 0.4 mV per decade) over a wide concentration range (3.1 × 10–7 to 1.0 × 10–2 mol l–1). The limit of detection was 1.5 × 10–7 mol l–1. The electrode has a response time of about 20 s, and it can be used for at least 2 months without observing any considerable deviation from Nernstian response. The proposed electrode could be used in the pH range of 2.5–5.5. The practical utility of the electrode has been demonstrated by its use for the estimation of palladium content in aqueous samples.

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