Sensitive and highly selective determination of vitamin B1 in the presence of other vitamin B complexes using functionalized gold nanoparticles as fluorophore

This work describes the spectrofluorimetric determination of thiamine in the presence of vitamin B complexes using 4-amino-6-hydroxy-2-mercaptopyrimidine as fluorophore. The detection limit was found to be 6.8 fM L−1 (S/N = 3).

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Selective Determination of Iron(III) in Sea Water by Gold Nanoparticles Self-assembled with N-carboxyl- L-cysteine

Journal of New Materials for Electrochemical Systems ◽

10.14447/jnmes.v17i1.274 ◽

2014 ◽

Vol 17 (1) ◽

pp. 001-004 ◽

Cited By ~ 2

Author(s):

Benzhi Liu ◽

Min Wang

Keyword(s):

Gold Nanoparticles ◽

Detection Limit ◽

Sea Water ◽

Stripping Voltammetry ◽

Differential Pulse ◽

Operational Parameters ◽

Selective Determination ◽

Self Assembled ◽

Optimized Conditions

Application of gold nanoparticles self-assembled with N-carboxyl- L-cysteine for the determination of iron(III) was investigated. Differential pulse adsorptive stripping voltammetry was used to detect iron(III). Various operational parameters were investigated and discussed in terms of their effects on the measurement signals. A linear range from 0.1 nM to 1.8 nM with a detection limit of 0.03 nMwas obtained under optimized conditions. The applicability of the method was successfully tested by determination of iron(III) in sea water samples.

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Thermodynamic investigation of the interaction between ionic liquid functionalized gold nanoparticles and human serum albumin for selective determination of glutamine

RSC Advances ◽

10.1039/d0ra04394j ◽

2020 ◽

Vol 10 (52) ◽

pp. 31400-31410 ◽

Cited By ~ 2

Author(s):

Sushama Sahu ◽

Reshma ◽

Srishti Sharma ◽

Indrapal Karbhal ◽

Kallol K. Ghosh

Keyword(s):

Gold Nanoparticles ◽

Ionic Liquid ◽

Human Serum Albumin ◽

Serum Albumin ◽

Human Serum ◽

Thermodynamic Investigation ◽

Selective Determination ◽

Functionalized Gold Nanoparticles

The excellent biocompatible and monodispersed gold nanoparticles (AuNPs) functionalized by amino based ionic liquid (IL) have been synthesized for the demonstration of their interaction with human serum albumin (HSA).

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

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19892667 ◽

1989 ◽

Vol 54 (10) ◽

pp. 2667-2673 ◽

Cited By ~ 5

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.

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