PMID- 26256921
OWN - NLM
STAT- MEDLINE
DCOM- 20151203
LR  - 20221207
IS  - 1873-3778 (Electronic)
IS  - 0021-9673 (Linking)
VI  - 1411
DP  - 2015 Sep 11
TI  - Optimization of dispersive micro solid-phase extraction for the rapid 
      determination of benzophenone-type ultraviolet absorbers in aqueous samples.
PG  - 17-22
LID - S0021-9673(15)01114-0 [pii]
LID - 10.1016/j.chroma.2015.07.106 [doi]
AB  - A solvent-free method for the rapid analysis of six benzophenone-type UV 
      absorbers in water samples is described. The method involves the use of 
      dispersive micro solid-phase extraction (DmSPE) followed by the simultaneous 
      silylation and thermal desorption (SSTD) gas chromatography-mass spectrometry 
      (GC-MS) operating in the selected-ion-storage (SIS) mode. A Plackett-Burman 
      design was used for screening and a central composite design (CCD) for optimizing 
      the significant factors was applied. The optimal experimental conditions involved 
      immersing 1.5mg of the Oasis HLB adsorbent in a 10mL portion of water sample. 
      After vigorous shaking for 1min, the adsorbents were transferred to a micro-vial, 
      and were dried at 122 degrees C for 3.5min, after cooling, 2muL of the BSTFA silylating 
      reagent was added. For SSTD, the injection-port temperature was held at 70 degrees C for 
      2.5min for derivatization, and the temperature was then rapidly increased to 
      340 degrees C to allow the thermal desorption of the TMS-derivatives into the GC for 
      5.7min. The limits of quantitation (LOQs) were determined to be 1.5-5.0ng/L. 
      Precision, as indicated by relative standard deviations (RSDs), was equal or less 
      than 11% for both intra- and inter-day analysis. Accuracy, expressed as the mean 
      extraction recovery, was between 87% and 95%. A preliminary analysis of the 
      municipal wastewater treatment plant (MWTP) effluent and river water samples 
      revealed that 2-hydroxy-4-methoxybenzophenone (BP-3) was the most common 
      benzophenone-type UV absorber present. Using a standard addition method, the 
      total concentrations of these compounds ranged from 5.1 to 74.8ng/L.
CI  - Copyright (c) 2015 Elsevier B.V. All rights reserved.
FAU - Chung, Wu-Hsun
AU  - Chung WH
AD  - Department of Chemistry, National Central University, Chung-Li 320, Taiwan; 
      Department of Chemical Engineering, Army Academy ROC, Chung-Li 320, Taiwan.
FAU - Tzing, Shin-Hwa
AU  - Tzing SH
AD  - Department of Chemical Engineering, Army Academy ROC, Chung-Li 320, Taiwan.
FAU - Ding, Wang-Hsien
AU  - Ding WH
AD  - Department of Chemistry, National Central University, Chung-Li 320, Taiwan. 
      Electronic address: wanghsiending@gmail.com.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20150801
PL  - Netherlands
TA  - J Chromatogr A
JT  - Journal of chromatography. A
JID - 9318488
RN  - 0 (Benzophenones)
RN  - 0 (Sunscreening Agents)
RN  - 0 (Waste Water)
RN  - 0 (Water Pollutants, Chemical)
RN  - 95OOS7VE0Y (oxybenzone)
SB  - IM
MH  - Adsorption
MH  - Benzophenones/*analysis
MH  - Gas Chromatography-Mass Spectrometry
MH  - Rivers/chemistry
MH  - Solid Phase Microextraction/*methods
MH  - Sunscreening Agents/*analysis
MH  - Temperature
MH  - Ultraviolet Rays
MH  - Wastewater/analysis
MH  - Water Pollutants, Chemical/*analysis
OTO - NOTNLM
OT  - Benzophenone-type UV absorbers
OT  - Dispersive micro solid-phase extraction
OT  - Thermal desorption-GC-MS
OT  - Water analysis
EDAT- 2015/08/11 06:00
MHDA- 2015/12/15 06:00
CRDT- 2015/08/11 06:00
PHST- 2015/06/18 00:00 [received]
PHST- 2015/07/29 00:00 [revised]
PHST- 2015/07/31 00:00 [accepted]
PHST- 2015/08/11 06:00 [entrez]
PHST- 2015/08/11 06:00 [pubmed]
PHST- 2015/12/15 06:00 [medline]
AID - S0021-9673(15)01114-0 [pii]
AID - 10.1016/j.chroma.2015.07.106 [doi]
PST - ppublish
SO  - J Chromatogr A. 2015 Sep 11;1411:17-22. doi: 10.1016/j.chroma.2015.07.106. Epub 
      2015 Aug 1.