PMID- 34559076
OWN - NLM
STAT- MEDLINE
DCOM- 20210928
LR  - 20210928
IS  - 0273-1223 (Print)
IS  - 0273-1223 (Linking)
VI  - 84
IP  - 6
DP  - 2021 Sep
TI  - Magnetic solid-phase extraction based on multi-walled carbon nanotubes combined 
      ferroferric oxide nanoparticles for the determination of five heavy metal ions in 
      water samples by inductively coupled plasma mass spectrometry.
PG  - 1417-1427
LID - 10.2166/wst.2021.321 [doi]
AB  - An excellent magnetic multi-walled carbon nanotubes (MMWCNT) containing carboxyl 
      material modified with ferroferric oxide (Fe(3)O(4)) nanoparticles was 
      synthesized as the adsorbent for magnetic solid-phase extraction (MSPE) of five 
      heavy metal ions (Pb(2+), Cu(2+), Co(2+), Cd(2+), Cr(4+)) in water samples 
      followed by on-line inductively coupled plasma mass spectrometry (ICP-MS) 
      detection. The characteristics of the adsorbent were analyzed using Fourier 
      transform infrared spectroscopy (FT-IR), scanning electron microscope (SEM), and 
      vibrating sample magnetometer (VSM). Some factors affecting extraction efficiency 
      including pH of sample solution, the amount of adsorbent, extraction method and 
      time, concentration and volume of desorption solvent, desorption time and 
      evaluation of coexisting ions were optimized. Under the optimum conditions, good 
      linearity (r >/= 0.9951) was obtained within the range of 0.1-50.0 ng.mL(-1). The 
      limits of detection (LODs) and limits of quantification (LOQs) were 4.0-25.0 
      ng.L(-1) and 15.0-80.0 ng.L(-1), respectively. And satisfactory recoveries of 
      five heavy metal ions ranged from 81.11% to 105.53% were acquired, and the 
      relative standard deviations (RSDs) were no more than 6.05%. The MMWCNT 
      synthesized had strong adsorption force for the five investigated heavy metal 
      ions, respectively. Hence, the proposed method was so suitable and sensitive that 
      it can be applied to the determination of trace analysis of heavy metals in water 
      samples.
FAU - Zhao, Ning
AU  - Zhao N
AD  - School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China 
      E-mail: longshanzhao@163.com; These authors contributed equally to this work.
FAU - Bian, Yuwei
AU  - Bian Y
AD  - School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China 
      E-mail: longshanzhao@163.com; These authors contributed equally to this work.
FAU - Dong, Xinyi
AU  - Dong X
AD  - School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China 
      E-mail: longshanzhao@163.com.
FAU - Gao, Xun
AU  - Gao X
AD  - School of Pharmacy, Jiangsu Key Laboratory of Marine Pharmaceutical Compound 
      Screening, Co-Innovation Center of Jiangsu Marine Bio-industry Technology, 
      Jiangsu Ocean University, Lianyungang, China.
FAU - Zhao, Longshan
AU  - Zhao L
AD  - School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China 
      E-mail: longshanzhao@163.com.
LA  - eng
PT  - Journal Article
PL  - England
TA  - Water Sci Technol
JT  - Water science and technology : a journal of the International Association on 
      Water Pollution Research
JID - 9879497
RN  - 0 (Metals, Heavy)
RN  - 0 (Nanotubes, Carbon)
RN  - 0 (Oxides)
RN  - 059QF0KO0R (Water)
SB  - IM
MH  - Adsorption
MH  - Limit of Detection
MH  - Magnetic Phenomena
MH  - Mass Spectrometry
MH  - *Metals, Heavy
MH  - *Nanoparticles
MH  - *Nanotubes, Carbon
MH  - Oxides
MH  - Solid Phase Extraction
MH  - Spectroscopy, Fourier Transform Infrared
MH  - Water
EDAT- 2021/09/25 06:00
MHDA- 2021/09/29 06:00
CRDT- 2021/09/24 12:16
PHST- 2021/09/24 12:16 [entrez]
PHST- 2021/09/25 06:00 [pubmed]
PHST- 2021/09/29 06:00 [medline]
AID - 10.2166/wst.2021.321 [doi]
PST - ppublish
SO  - Water Sci Technol. 2021 Sep;84(6):1417-1427. doi: 10.2166/wst.2021.321.