PMID- 35160454
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220219
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 14
IP  - 3
DP  - 2022 Jan 24
TI  - Improving Sustainability of the Griess Reaction by Reagent Stabilization on PDMS 
      Membranes and ZnNPs as Reductor of Nitrates: Application to Different Water 
      Samples.
LID - 10.3390/polym14030464 [doi]
LID - 464
AB  - A new approach based on the use of polydimethylsiloxane (PDMS) membranes doped 
      with Griess reagents for in situ determination of NO2- and NO3-(-) in real 
      samples is proposed. The influence of some doping compounds, on the properties of 
      the PDMS membranes, such as tetraethyl orthosilicate (TEOS), or/and ionic liquids 
      (OMIM PF(6)) has been studied. Membrane characterization was performed. To apply 
      the procedure to NO3- determination, dispersed Zn nanoparticles (ZnNPs) were 
      employed. The analytical responses were the absorbance or the RGB components from 
      digital images. Good precision (RSD < 8%) and detection limit of 0.01 and 0.5 
      mgL(-1) for NO2- and NO3-, respectively, were achieved. The approach was 
      satisfactory when applied to the determination of NO2- and NO3- in drinking 
      waters, irrigation and river waters, and waters from canned and fresh vegetables. 
      The results obtained were statistically comparable with those by using nitrate 
      ISE or UV measurement. This approach was transferred satisfactory to 96 wells for 
      multianalysis. This study enables the improvement in the on-site determination of 
      NO2- and NO3- in several matrices. It is a sustainable alternative over the 
      reagent derivatizations in solution and presents several advantages such as being 
      versatile, simplicity, low analysis time, cost, and energy efficiency. The 
      response can be detected visually or by portable instruments such as smartphone.
FAU - Hakobyan, Lusine
AU  - Hakobyan L
AUID- ORCID: 0000-0002-0079-4483
AD  - MINTOTA Research Group, Departament de Quimica Analitica, Facultat de Quimica, 
      Universitat de Valencia, Dr. Moliner 50, 46100 Valencia, Spain.
FAU - Monforte-Gomez, Belen
AU  - Monforte-Gomez B
AD  - MINTOTA Research Group, Departament de Quimica Analitica, Facultat de Quimica, 
      Universitat de Valencia, Dr. Moliner 50, 46100 Valencia, Spain.
FAU - Moliner-Martinez, Yolanda
AU  - Moliner-Martinez Y
AD  - MINTOTA Research Group, Departament de Quimica Analitica, Facultat de Quimica, 
      Universitat de Valencia, Dr. Moliner 50, 46100 Valencia, Spain.
FAU - Molins-Legua, Carmen
AU  - Molins-Legua C
AUID- ORCID: 0000-0002-6459-275X
AD  - MINTOTA Research Group, Departament de Quimica Analitica, Facultat de Quimica, 
      Universitat de Valencia, Dr. Moliner 50, 46100 Valencia, Spain.
FAU - Campins-Falco, Pilar
AU  - Campins-Falco P
AUID- ORCID: 0000-0002-0980-8298
AD  - MINTOTA Research Group, Departament de Quimica Analitica, Facultat de Quimica, 
      Universitat de Valencia, Dr. Moliner 50, 46100 Valencia, Spain.
LA  - eng
GR  - CTQ-2017-90082-P/GOBIERNO DE ESPANA MCIU-AEI/
GR  - EU-FEDER/MINECO/MINISTERIO DE ECONOMIA Y COMPETITIVAD/
GR  - PROMETEO PROGRAM 2016/109 2020/078/GENERALITAT VALENCIANA/
GR  - LIFE16 ENV/ES/000419/EU-LIFE/
GR  - AK-GLUTEN-DETECT-VLC-BIOMED 2020/UNIVERSITAT DE VALENCIA Y INSTITUTO DE 
      INVESTIGACION LA FE/
PT  - Journal Article
DEP - 20220124
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC8839667
OTO - NOTNLM
OT  - 96 wells
OT  - PDMS membranes
OT  - ZnNPs
OT  - colorimetry
OT  - digital imagen
OT  - embedded Griess reagent
OT  - ionic liquid
OT  - nitrate and nitrite
OT  - real samples
OT  - smartphone
COIS- The authors declare no conflict of interest.
EDAT- 2022/02/16 06:00
MHDA- 2022/02/16 06:01
PMCR- 2022/01/24
CRDT- 2022/02/15 01:08
PHST- 2021/12/17 00:00 [received]
PHST- 2022/01/17 00:00 [revised]
PHST- 2022/01/20 00:00 [accepted]
PHST- 2022/02/15 01:08 [entrez]
PHST- 2022/02/16 06:00 [pubmed]
PHST- 2022/02/16 06:01 [medline]
PHST- 2022/01/24 00:00 [pmc-release]
AID - polym14030464 [pii]
AID - polymers-14-00464 [pii]
AID - 10.3390/polym14030464 [doi]
PST - epublish
SO  - Polymers (Basel). 2022 Jan 24;14(3):464. doi: 10.3390/polym14030464.