PMID- 23953446
OWN - NLM
STAT- MEDLINE
DCOM- 20140310
LR  - 20221207
IS  - 1873-3573 (Electronic)
IS  - 0039-9140 (Linking)
VI  - 114
DP  - 2013 Sep 30
TI  - Solid phase extraction-preconcentration and high performance liquid 
      chromatographic determination of 2-mercapto-(benzothiazole, benzoxazole and 
      benzimidazole) using copper oxide nanoparticles.
PG  - 90-4
LID - S0039-9140(13)00296-8 [pii]
LID - 10.1016/j.talanta.2013.04.014 [doi]
AB  - This study introduces a novel method of solid phase extraction (SPE), 
      preconcentration and HPLC determination of 2-mercaptobenzimidazole (2MBI), 
      2-mercaptobenzoxazole (2MBO) and 2-mercaptobenzothiazole (2MBT) from an aqueous 
      solution by a SPE cartridge loaded with copper oxide nanoparticles. Results 
      demonstrated that copper oxide nanoparticles are quite efficient for extraction 
      and preconcentration of trace amounts of these mercaptans at room temperature. 
      The study also investigated the effects of parameters such as pH, buffer and its 
      volume, electrolyte concentration, flow rate of the test solution, composition 
      and volume of the desorbing solvent, accepted tolerable volume, amount of 
      adsorbent, reusability of cartridges and evidence of some co-existing species on 
      extraction and determination of the above mentioned mercaptans. The method showed 
      good linearity for determination of these mercaptans in the range of 0.01-10 mug 
      mL(-1) with regression coefficients better than 0.9969. The limits of detection 
      (LODs) evaluations were 0.0021, 0.0027 and 0.0019 mug mL(-1) for 2MBT, 2MBO and 
      2MBI, respectively. The relative standard deviations (RSDs) for 0.2 mug mL(-1) and 
      5 mug mL(-1) of the measured mercaptans were below 3.04% and 4.23%, respectively. 
      Ramin Power Plant (3000 MW, Ahvaz, Iran) cooling water containing some 2MBT (as 
      corrosion inhibitor) was used as the real sample. Recovery tests with spiked 
      levels of 2MBT, 2MBI and 2MBO were carried out and satisfied results were 
      obtained.
CI  - Copyright (c) 2013 Elsevier B.V. All rights reserved.
FAU - Parham, Hooshang
AU  - Parham H
AD  - Chemistry Department, College of Science, Shahid Chamran University, Ahvaz, Iran. 
      hoparham@yahoo.com
FAU - Khoshnam, Farzaneh
AU  - Khoshnam F
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20130412
PL  - Netherlands
TA  - Talanta
JT  - Talanta
JID - 2984816R
RN  - 0 (Benzimidazoles)
RN  - 0 (Benzothiazoles)
RN  - 0 (Benzoxazoles)
RN  - 0 (Industrial Waste)
RN  - 0 (Sulfhydryl Compounds)
RN  - 0 (Waste Water)
RN  - 0 (Water Pollutants, Chemical)
RN  - 5RLR54Z22K (captax)
RN  - 619CVM6HOK (2-mercaptobenzimidazole)
RN  - 789U1901C5 (Copper)
RN  - 7PFU48RAFX (2-mercaptobenzoxazole)
RN  - V1XJQ704R4 (cupric oxide)
SB  - IM
MH  - Adsorption
MH  - Benzimidazoles/*analysis/chemistry
MH  - Benzothiazoles/*analysis/chemistry
MH  - Benzoxazoles/*analysis/chemistry
MH  - Chromatography, High Pressure Liquid
MH  - Copper/chemistry
MH  - Hydrogen-Ion Concentration
MH  - Industrial Waste/analysis
MH  - Nanoparticles/chemistry
MH  - Solid Phase Extraction
MH  - Sulfhydryl Compounds/*analysis/chemistry
MH  - Wastewater/analysis
MH  - Water Pollutants, Chemical/*analysis/chemistry
OTO - NOTNLM
OT  - Copper oxide nanoparticles
OT  - Determination
OT  - HPLC
OT  - Mercaptans
OT  - Preconcentration
EDAT- 2013/08/21 06:00
MHDA- 2014/03/13 06:00
CRDT- 2013/08/20 06:00
PHST- 2012/12/31 00:00 [received]
PHST- 2013/04/03 00:00 [revised]
PHST- 2013/04/07 00:00 [accepted]
PHST- 2013/08/20 06:00 [entrez]
PHST- 2013/08/21 06:00 [pubmed]
PHST- 2014/03/13 06:00 [medline]
AID - S0039-9140(13)00296-8 [pii]
AID - 10.1016/j.talanta.2013.04.014 [doi]
PST - ppublish
SO  - Talanta. 2013 Sep 30;114:90-4. doi: 10.1016/j.talanta.2013.04.014. Epub 2013 Apr 
      12.