PMID- 25621454
OWN - NLM
STAT- MEDLINE
DCOM- 20160111
LR  - 20150331
IS  - 1944-0057 (Electronic)
IS  - 1944-0057 (Linking)
VI  - 32
IP  - 5
DP  - 2015
TI  - Determination of heavy metal ions in vegetable samples using a magnetic 
      metal-organic framework nanocomposite sorbent.
PG  - 725-36
LID - 10.1080/19440049.2015.1007397 [doi]
AB  - This paper describes the synthesis and application of a novel magnetic 
      metal-organic framework (MOF) [(Fe(3)O(4)-benzoyl 
      isothiocyanate)/Cu(3)(benzene-1,3,5-tricarboxylate)(2)] to pre-concentrate trace 
      amounts of Cd(II), Pb(II), Zn(II) and Cr(III) ions and their determination by 
      flame atomic absorption spectrometry. A Box-Behnken design was used to find the 
      parameters affecting the pre-concentration procedure through response surface 
      methodology. Three factors including uptake time, amount of the magnetic sorbent 
      and pH of the sample were selected as affecting factors in the sorption step, and 
      four factors including type, volume and concentration of the eluent as well as 
      the elution time were selected in the elution step for the optimisation study. 
      The opted values were 30 mg, 10.1 min, 5.9, EDTA, 4.0 ml, 0.57 mol l(-1) EDTA 
      solution and 13.0 min for the amount of the magnetic sorbent, uptake time, pH of 
      the sample, type, volume, concentration of the eluent, and elution time, 
      respectively. The limits of detection (LODs) were 0.12, 0.7, 0.16, and 0.4 ng 
      ml(-1) for Cd(II), Pb(II), Zn(II) and Cr(III) ions, respectively. The relative 
      standard deviations (RSDs) of the method were less than 7.2% for five separate 
      batch experiments for the determination of 30 mug l(-1) of Cd(II), Pb(II), Zn(II) 
      and Cr(III) ions. The sorption capacity of the [(Fe(3)O(4)-benzoyl 
      isothiocyanate)/MOF] was 175 mg g(-1) for Cd(II), 168 mg g(-1) for Pb(II), 210 mg 
      g(-1) for Zn(II) and 196 mg g(-1) for Cr(III). It was found that the magnetic MOF 
      nanocomposite demonstrated a higher capacity compared with Fe(3)O(4)-benzoyl 
      isothiocyanate. Finally, the magnetic MOF nanocomposite was successfully applied 
      to the rapid extraction of trace amounts of the heavy metal ions from vegetable 
      samples.
FAU - Hassanpour, Akbar
AU  - Hassanpour A
AD  - a Department of Chemistry, Marand Branch , Islamic Azad University , Marand , 
      Iran.
FAU - Hosseinzadeh-Khanmiri, Rahim
AU  - Hosseinzadeh-Khanmiri R
FAU - Babazadeh, Mirzaagha
AU  - Babazadeh M
FAU - Abolhasani, Jafar
AU  - Abolhasani J
FAU - Ghorbani-Kalhor, Ebrahim
AU  - Ghorbani-Kalhor E
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20150226
PL  - England
TA  - Food Addit Contam Part A Chem Anal Control Expo Risk Assess
JT  - Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & 
      risk assessment
JID - 101485040
RN  - 0 (Ions)
RN  - 0 (Metals, Heavy)
RN  - 00BH33GNGH (Cadmium)
RN  - 0R0008Q3JB (Chromium)
RN  - 2P299V784P (Lead)
RN  - J41CSQ7QDS (Zinc)
SB  - IM
MH  - Cadmium/analysis
MH  - Chromium/analysis
MH  - Food Analysis
MH  - Food Contamination/analysis
MH  - Ions/analysis
MH  - Lead/analysis
MH  - Limit of Detection
MH  - Metals, Heavy/*analysis
MH  - Nanocomposites/*chemistry
MH  - Reproducibility of Results
MH  - Spectroscopy, Fourier Transform Infrared
MH  - Vegetables/*chemistry
MH  - X-Ray Diffraction
MH  - Zinc/analysis
OTO - NOTNLM
OT  - extraction
OT  - food samples
OT  - heavy metal ions
OT  - magnetic metal-organic frame work nanocomposite
EDAT- 2015/01/27 06:00
MHDA- 2016/01/12 06:00
CRDT- 2015/01/27 06:00
PHST- 2015/01/27 06:00 [entrez]
PHST- 2015/01/27 06:00 [pubmed]
PHST- 2016/01/12 06:00 [medline]
AID - 10.1080/19440049.2015.1007397 [doi]
PST - ppublish
SO  - Food Addit Contam Part A Chem Anal Control Expo Risk Assess. 2015;32(5):725-36. 
      doi: 10.1080/19440049.2015.1007397. Epub 2015 Feb 26.