Fluorimetric determination traces of aluminium in soil extracts

Mánuel-Vez, Manuel P.; Garcı́a-Vargas, Manuel

doi:10.1016/0039-9140(94)e0072-y

Cited by 30 publications

(6 citation statements)

References 15 publications

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“…Among the sensing methods, luminescence-based methods have gained much attention in recent years due to their advantageous features such as ease of manipulation, high sensitivity, and real-time monitoring with rapid response time . Recently, some luminescent sensors with detection of Al 3+ ions have been reported, and even fewer sensors have been reported for sensing in pure water. , Nevertheless, their widespread use is limited owing to multistep processing, requirement of expensive chemicals, stability, and lack of molecular organization . Therefore, it is important to develop a simple sensor with high selectivity and sensitivity for Al 3+ in aqueous medium.…”

Section: Introductionmentioning

confidence: 99%

Highly Selective and Sensitive Luminescence Turn-On-Based Sensing of Al³⁺ Ions in Aqueous Medium Using a MOF with Free Functional Sites

2015

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A new metal-organic framework [Co(OBA)(DATZ)0.5(H2O)] {OBA = 4,4'-oxybis(benzoic acid) and DATZ = 3,5-diamino-1,2,4-triazole}, 1, was synthesized by hydrothermal reaction. Single-crystal X-ray data of 1 confirmed two-dimensional rhombus grid network topology with a free nitrogen site of triazole ring and two amine groups of each DATZ. Photoluminescence study of 1 in aqueous medium shows blue emission at 407 nm upon excitation at 283 nm. This emissive property was used for the sensing of Al(3+) ions in aqueous medium through very high luminescence turn-on (6.3-fold) along with the blue shifting (∼24 nm) of the emission peak. However, luminescence studies in the presence of other common metal ions such as Mg(2+), Zn(2+), Ni(2+), Co(2+), Mn(2+), K(+), Na(+), Ca(2+), Cd(2+), Hg(2+), Cu(2+), Fe(2+), Fe(3+), and Cr(3+) in aqueous medium shows luminescence quenching in varying extent. Interestingly, the luminescence turn-on-based selectivity of Al(3+) ions in aqueous medium was achieved even in the presence of the highest quenchable metal ion, Fe(3+). Furthermore, very high sensitivity was observed in the case of Al(3+) ions with a limit of detection of Al(3+) of 57.5 ppb, which is significantly lower than the higher limit of U.S. Environmental Protection Agency recommendation of Al(3+) ion for drinking water (200 ppb).

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Section: Introductionmentioning

confidence: 99%

Highly Selective and Sensitive Luminescence Turn-On-Based Sensing of Al³⁺ Ions in Aqueous Medium Using a MOF with Free Functional Sites

2015

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“…22 The use of a fluorescence technique for the trace level detection of Al 3+ sensor is becoming very popular and the volume of contributions in this field is rising exponentially. [23][24][25][26][27][28] Recently, several Al 3+ selective "turn-on" fluorescent probes derived from hydrazone, 29 Schiff bases, 30 coumarin, 31 pyrollidine, 32 calixarene, 33 boron dipyrromethene, 34 hydroxyflavone, 35 8-hydroxyquinoline, 36 oxazoline and imidazoline, 37 and bipyridyl-dansyl 38 have been reported. Most of them have suffered at least from one of the following parameters: cost of synthesis, the number of synthesis steps, selectivity, LOD, detection medium, binding constant, crystal structure of a probe and applications.…”

Section: Introductionmentioning

confidence: 99%

A coumarin-based “turn-on” fluorescent sensor for the determination of Al3+: single crystal X-ray structure and cell staining properties

et al. 2013

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An efficient Al(3+) receptor, 6-(2-hydroxybenzylideneamino)-2H-chromen-2-one (HBC), has been synthesized by condensing salicylaldehyde with 6-aminocoumarin. The molecular structure of HBC has been determined by a single crystal X-ray analysis. It was established that in the presence of Al(3+), HBC shows 25 fold enhancement of fluorescence intensity which might be attributed to the chelation-enhanced fluorescence (CHEF) process. HBC binds Al(NO3)3 in a 1 : 1 stoichiometry with a binding constant (K) of 7.9 × 10(4) M(-1). Fe(3+) and Mn(2+) quench the emission intensity of the [HBC + Al(3+)] system to an insignificant extent at a concentration 10 times higher compared to that of Al(3+). HBC is highly efficient in the detection of intracellular Al(3+) under a fluorescence microscope.

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“…The sensory core is an excellent Al(III) chelator for different organic molecules in organic or aqueous/organic solutions. − Thus, we designed monomer ( 3 ) and prepared organic sensory materials to function in pure water. The conventional thermally initiated radical polymerization of ( 3 ) with the inexpensive commercial comonomers VP and 2HEA resulted in the water-soluble linear copolymer ( L Sen ), and the addition of a cross-linker ( EGDMMA ) yielded the membrane ( M Sem ) (Scheme ).…”

Section: Resultsmentioning

confidence: 99%

“…On the basis of these considerations, optical chemosensors could play a vital role in developing these devices. However, few optical chemosensory systems based on the sensitive fluorescence technique have been reported, − and even fewer systems have been reported for sensing in pure water (the main medium of interest). − …”

Section: Introductionmentioning

confidence: 99%

Forced Solid-State Interactions for the Selective “Turn-On” Fluorescence Sensing of Aluminum Ions in Water Using a Sensory Polymer Substrate

Vallejos

Muñoz

Ibeas

et al. 2014

ACS Appl. Mater. Interfaces

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Selective and sensitive solid sensory substrates for detecting Al(III) in pure water are reported. The material is a flexible polymer film that can be handled and exhibits gel behavior and membrane performance. The film features a chemically anchored salicylaldehyde benzoylhydrazone derivative as an aluminum ion fluorescence sensor. A novel procedure for measuring Al(III) at the ppb level using a single solution drop in 20 min was developed. In this procedure, a drop was allowed to enter the hydrophilic material for 15 min before a 5 min drying period. The process forced the Al(III) to interact with the sensory motifs within the membrane before measuring the fluorescence of the system. The limit of detection of Al(III) was 22 ppm. Furthermore, a water-soluble sensory polymer containing the same sensory motifs was developed with a limit of detection of Al(III) of 1.5 ppb, which was significantly lower than the Environmental Protection Agency recommendations for drinking water.

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Fluorimetric determination traces of aluminium in soil extracts

Cited by 30 publications

References 15 publications

Highly Selective and Sensitive Luminescence Turn-On-Based Sensing of Al³⁺ Ions in Aqueous Medium Using a MOF with Free Functional Sites

Highly Selective and Sensitive Luminescence Turn-On-Based Sensing of Al³⁺ Ions in Aqueous Medium Using a MOF with Free Functional Sites

A coumarin-based “turn-on” fluorescent sensor for the determination of Al3+: single crystal X-ray structure and cell staining properties

Forced Solid-State Interactions for the Selective “Turn-On” Fluorescence Sensing of Aluminum Ions in Water Using a Sensory Polymer Substrate

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Fluorimetric determination traces of aluminium in soil extracts

Cited by 30 publications

References 15 publications

Highly Selective and Sensitive Luminescence Turn-On-Based Sensing of Al3+ Ions in Aqueous Medium Using a MOF with Free Functional Sites

Highly Selective and Sensitive Luminescence Turn-On-Based Sensing of Al3+ Ions in Aqueous Medium Using a MOF with Free Functional Sites

A coumarin-based “turn-on” fluorescent sensor for the determination of Al3+: single crystal X-ray structure and cell staining properties

Forced Solid-State Interactions for the Selective “Turn-On” Fluorescence Sensing of Aluminum Ions in Water Using a Sensory Polymer Substrate

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Product

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Highly Selective and Sensitive Luminescence Turn-On-Based Sensing of Al³⁺ Ions in Aqueous Medium Using a MOF with Free Functional Sites

Highly Selective and Sensitive Luminescence Turn-On-Based Sensing of Al³⁺ Ions in Aqueous Medium Using a MOF with Free Functional Sites