2018
DOI: 10.1016/j.talanta.2018.04.061
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Polymer platforms for selective detection of cocaine in street samples adulterated with levamisole

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Cited by 34 publications
(30 citation statements)
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“…Therefore, this process was applied for LEV determination in a street cocaine sample. On the other hand, the same behavior was not observed for COC, which probably is not related to the deconvolution process, but to matrix effect caused by the presence of LEV, as reported in the literature .…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…Therefore, this process was applied for LEV determination in a street cocaine sample. On the other hand, the same behavior was not observed for COC, which probably is not related to the deconvolution process, but to matrix effect caused by the presence of LEV, as reported in the literature .…”
Section: Resultsmentioning
confidence: 99%
“…(2018) employed polymers readily synthesized by electrodeposition on the surface of graphene‐modified electrodes for detection of cocaine in the presence of LEV using SWV. Both processes involve time consuming protocols (pretreatment step or electrode modification) or increase the cost of sensors and may limit their storage stability (electropolymerized sensors) .…”
Section: Introductionmentioning
confidence: 99%
“…Since there were several studies conducted for the electrochemical detection of cocaine samples adulterated with levamisole (Florea et al, 2018a;De Jong et al, 2018), our study focused on some of the other common cutting agents encountered in drug samples, namely caffeine, acetaminophen, lactose and benzocaine.…”
Section: Introductionmentioning
confidence: 99%
“…In order to improve sensitivity and selectivity, the screen printed electrodes (SPEs) can be modified with carbon-based nanomaterials, such as GPH and MWCNTs or metal NPs, such as AuNPs, PtNPs and silver (Florea et al, 2018a;Ahmed et al, 2020). These nanomaterials provide higher surface area, increased conductivity and faster electron transfer (Eissa et al, 2019;De Rycke et al, 2020).…”
Section: Introductionmentioning
confidence: 99%
“…100 Atualmente é possível encontrar uma gama de trabalhos com vários tipos de eletrodos, como a pasta de carbono44 , o diamante dopado com boro101 , o serigrafado de carbono (screen-printed carbon electrode -SPCE)102 , serigrafado de grafite (screen-printed graphene electrode -SPGE)103 . Para se obter uma melhora na sensibilidade e seletividade, frente aos interferentes encontrados nas amostras apreendidas, como cafeína, lidocaína, procaína e levamisol, podem ser utilizados modificadores na superfície do eletrodo de trabalho, como os complexos de bases de Schiff,43, 104,105 e filmes poliméricos[106][107][108] . utilizam eletrodos de ouro109 , carbono vítreo110,111 , SPGE 112 e também com a modificação por óxidos113 , filmes poliméricos 49 e curcubiturilas48 .…”
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