PMID- 21599025
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20111019
LR  - 20110630
IS  - 1520-6882 (Electronic)
IS  - 0003-2700 (Linking)
VI  - 83
IP  - 13
DP  - 2011 Jul 1
TI  - Fabrication of isoreticular metal-organic framework coated capillary columns for 
      high-resolution gas chromatographic separation of persistent organic pollutants.
PG  - 5093-100
LID - 10.1021/ac200646w [doi]
AB  - The unusual properties of metal-organic frameworks (MOFs), such as permanent 
      nanoscale porosity, high surface area, uniformly structured cavities, and the 
      availability of in-pore functionality and outer-surface modification, are 
      advantageous for diverse applications. However, most existing methods for the 
      synthesis of nanosized MOFs require an activation procedure or auxiliary 
      stabilizing agents. Here we report a 1-min, room-temperature approach for the 
      synthesis of nanosized isoreticular MOFs (IRMOFs) to fabricate IRMOF coated 
      capillary columns for the high-resolution gas chromatographic separation of 
      persistent organic pollutants (POPs), including polychlorinated biphenyls (PCBs), 
      polyaromatic hydrocarbons (PAHs), polybrominated diphenylethers (PBDEs), and 
      hexachlorocyclohexanes (HCHs). The developed method allows the synthesis of 
      well-shaped nanosized IRMOFs within 1 min at room temperature without the need 
      for any activation procedure or auxiliary stabilizing agents. The IRMOF coated 
      capillary columns offer good separation efficiency that is generally comparable 
      to that of a commercial HP-5MS column for POPs. The IRMOF-1 and IRMOF-3 coated 
      capillary columns gave the theoretical plate values of 2293 and 2063 plates m(-1) 
      for naphthalene, respectively, which are slightly smaller than those with a 
      HP-5MS column (2845 plates m(-1)). The IRMOF-1 coated capillary column offered 
      good resolution for the separation of several intractable PAH isomer pairs, such 
      as anthracene/phenanthrene, benzo[a]anthracene/chrysene, and 
      benzo[b]fluoranthene/benzo[k]fluoranthene, with resolutions of 3.0, 1.1, and 4.1, 
      respectively, which were difficult to be baseline separated on a HP-5MS column 
      with a resolution of 1.0. In addition, the IRMOF-1 and IRMOF-3 coated capillary 
      columns offered a clear group separation of the PCB isomers and a linear range 
      covering three orders of magnitude. The relative standard deviations for the five 
      replicate separations of PAHs were 0.23-0.26% and 2.1-4.5% for retention time and 
      peak area, respectively. The fabricated IRMOF coated capillary columns have been 
      shown to be very promising for the separation of POPs with good reproducibility, 
      high resolution, great selectivity, and a wide linear range.
FAU - Gu, Zhi-Yuan
AU  - Gu ZY
AD  - Research Center for Analytical Sciences, College of Chemistry, Nankai University, 
      Tianjin 300071, China.
FAU - Jiang, Jun-Qing
AU  - Jiang JQ
FAU - Yan, Xiu-Ping
AU  - Yan XP
LA  - eng
PT  - Journal Article
DEP - 20110608
PL  - United States
TA  - Anal Chem
JT  - Analytical chemistry
JID - 0370536
EDAT- 2011/05/24 06:00
MHDA- 2011/05/24 06:01
CRDT- 2011/05/24 06:00
PHST- 2011/05/24 06:00 [entrez]
PHST- 2011/05/24 06:00 [pubmed]
PHST- 2011/05/24 06:01 [medline]
AID - 10.1021/ac200646w [doi]
PST - ppublish
SO  - Anal Chem. 2011 Jul 1;83(13):5093-100. doi: 10.1021/ac200646w. Epub 2011 Jun 8.