PMID- 29136910
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20180319
LR  - 20180319
IS  - 1873-3573 (Electronic)
IS  - 0039-9140 (Linking)
VI  - 178
DP  - 2018 Feb 1
TI  - Low-cost approach to increase the analysis throughput of bar adsorptive 
      microextraction (BAmicroE) combined with environmentally-friendly renewable sorbent 
      phase of recycled diatomaceous earth.
PG  - 886-893
LID - S0039-9140(17)31061-5 [pii]
LID - 10.1016/j.talanta.2017.10.022 [doi]
AB  - In this study, a novel apparatus for bar adsorptive microextraction (BAmicroE) using 
      a voltage regulator was proposed as an alternative tool to improve the analysis 
      throughput. In addition, recycled diatomaceous earth obtained as a brewery 
      residue was employed as a biosorbent coating for the determination of methyl 
      paraben, ethyl paraben, benzophenone and triclocarban in water samples by 
      high-performance liquid chromatography-diode array detection (HPLC-DAD). The use 
      of the extraction devices, comprised of floating adsorptive bars of 7.5mm length, 
      in the extractions with magnetic stirrers linked to a voltage regulator enabled 
      the analysis of multiple samples, simultaneously. The method optimization was 
      carried out by univariate and multivariate analyses. The optimal conditions for 
      the method were sample solution at pH 5, extraction time of 90min and liquid 
      desorption in 100microL of acetonitrile:methanol (50:50, v/v) for 15min. The total 
      sample preparation time was 17.5min per sample for a simultaneous batch of six 
      extractions. The R(2) values for the calibration curves obtained were higher than 
      0.9985. The limits of detection (LODs) varied from 0.19 to 2mugL(-1) and the 
      limits of quantification (LOQs) ranged from 0.63 to 6.9mugL(-1). The method was 
      applied to freshwater samples collected from Peri Lagoon (Florianopolis, SC, 
      Brazil) and the relative recoveries ranged from 63% to 124% with relative 
      standard deviations (RSDs) of < 20% (n = 2). The RSD values for the 
      reproducibility of the performance of the magnetic stirrers and inter-device 
      extraction efficiency were lower than 14% (n = 3) and 11% (n = 3), respectively.
CI  - Copyright (c) 2017 Elsevier B.V. All rights reserved.
FAU - Mafra, Gabriela
AU  - Mafra G
AD  - Universidade Federal de Santa Catarina, Departamento de Quimica, Florianopolis, 
      Santa Catarina 88040-900, Brazil.
FAU - Oenning, Anderson Luiz
AU  - Oenning AL
AD  - Universidade Federal de Santa Catarina, Departamento de Quimica, Florianopolis, 
      Santa Catarina 88040-900, Brazil.
FAU - Dias, Adriana Neves
AU  - Dias AN
AD  - Instituto Federal Catarinense, Campus Brusque, 88350-300, Brazil.
FAU - Merib, Josias
AU  - Merib J
AD  - Universidade Federal de Santa Catarina, Departamento de Quimica, Florianopolis, 
      Santa Catarina 88040-900, Brazil.
FAU - Budziak, Dilma
AU  - Budziak D
AD  - Universidade Federal de Santa Catarina, Departamento de Agronomia, Curitibanos, 
      Santa Catarina 89520-000, Brazil.
FAU - Silveira, Cristian Berto da
AU  - Silveira CBD
AD  - Universidade do Estado de Santa Catarina, Departamento de Solos e Recursos 
      Naturais, Lages, Santa Catarina 88509-900, Brazil.
FAU - Carasek, Eduardo
AU  - Carasek E
AD  - Universidade Federal de Santa Catarina, Departamento de Quimica, Florianopolis, 
      Santa Catarina 88040-900, Brazil. Electronic address: eduardo.carasek@ufsc.br.
LA  - eng
PT  - Journal Article
DEP - 20171016
PL  - Netherlands
TA  - Talanta
JT  - Talanta
JID - 2984816R
OTO - NOTNLM
OT  - Bar adsorptive microextraction
OT  - Benzophenone
OT  - Parabens
OT  - Triclocarban, Diatomaceous earth
OT  - Water samples
EDAT- 2017/11/16 06:00
MHDA- 2017/11/16 06:01
CRDT- 2017/11/16 06:00
PHST- 2017/06/08 00:00 [received]
PHST- 2017/09/06 00:00 [revised]
PHST- 2017/10/13 00:00 [accepted]
PHST- 2017/11/16 06:00 [entrez]
PHST- 2017/11/16 06:00 [pubmed]
PHST- 2017/11/16 06:01 [medline]
AID - S0039-9140(17)31061-5 [pii]
AID - 10.1016/j.talanta.2017.10.022 [doi]
PST - ppublish
SO  - Talanta. 2018 Feb 1;178:886-893. doi: 10.1016/j.talanta.2017.10.022. Epub 2017 
      Oct 16.