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231225s2022 xx |||||o 00| ||eng c |
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7 |
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|a 10.1080/09593330.2020.1812730
|2 doi
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|a pubmed25n1046.xml
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|a (DE-627)NLM313853630
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|a (NLM)32811349
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Chauhan, Deepti
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Synthesis, characterization and metal ions sensing applications of meta-benziporphodimethene-embedded polyacrylamide/carboxymethyl guargum polymeric hydrogels in water
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 01.03.2022
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|a Date Revised 01.03.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a We have developed a robust procedure for the visual on-site detection of zinc, cadmium and mercury metal ions in an aqueous medium using a polymeric hydrogel matrix-based colorimetric sensor. Zn2+, Cd2+and Hg2+, owing to their biological significant value and environmental harm, have attracted more attention. The selective detection of Zn2+, Cd2+and Hg2+ metal ions has always been challenging due to their closed-shell d10 electronic configuration which makes them spectroscopically silent. A polyacrylamide/carboxymethyl guargum polymeric hydrogel-based metal ion sensor was synthesized by in situ embedding 11, 16-bis (phenyl)-6, 6, 21, 21-tetramethyl-m-benzi-6,21-porphodimethene (meta-BPDM) in a host hydrogel. The meta-BPDM-embedded hydrogel shows high stability, sensitivity and selectivity when it is dipped into the aqueous solutions of Zn2+, Cd2+and Hg2+ metal ions. During detection, the binding of these metal ions in hydrogel causes hydrogel to change from red to bluish-green which was visually detected and confirmed by UV-visible spectroscopy. The meta-BPDM-embedded polymeric hydrogel was characterized by using solid-state UV-visible spectroscopy, scanning electron microscopy, X-ray diffraction, thermogravimetric analysis, Fourier-transform infrared spectroscopy, energy-dispersive X-ray analysis and its sensing properties were studied. The meta-BPDM-embedded polymeric hydrogel was found to be an excellent colorimetric sensor for Zn2+, Cd2+ and Hg2+ in aqueous medium without leaching of meta-BPDM from the hydrogel. The selectivity to sense these ions is mainly dependent on the binding constant of these metal ions with the meta-BPDM embedded in the hydrogel. The sensitivity of the hydrogel was 0.5, 1, and 2 mg/L with Hg2+, Zn2+ and Cd2+, respectively
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|a Journal Article
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|a Hydrogel
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|a Metalation
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|a Sensor
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|a meta-benziporphodimethene
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7 |
|a Acrylic Resins
|2 NLM
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|a Hydrogels
|2 NLM
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|a Ions
|2 NLM
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|a Water
|2 NLM
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|a 059QF0KO0R
|2 NLM
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|a polyacrylamide
|2 NLM
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| 650 |
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|a 9003-05-8
|2 NLM
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| 650 |
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|a Mercury
|2 NLM
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| 650 |
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7 |
|a FXS1BY2PGL
|2 NLM
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| 700 |
1 |
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|a Kumar, Anil
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Warkar, Sudhir G
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Environmental technology
|d 1993
|g 43(2022), 7 vom: 01. März, Seite 991-1002
|w (DE-627)NLM098202545
|x 1479-487X
|7 nnas
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| 773 |
1 |
8 |
|g volume:43
|g year:2022
|g number:7
|g day:01
|g month:03
|g pages:991-1002
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| 856 |
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|u http://dx.doi.org/10.1080/09593330.2020.1812730
|3 Volltext
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|d 43
|j 2022
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|h 991-1002
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