PMID- 19449543
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20150514
LR  - 20161018
IS  - 1000-8713 (Print)
IS  - 1000-8713 (Linking)
VI  - 27
IP  - 1
DP  - 2009 Jan
TI  - [Determination of trichlorobenzenes in water-based cutting fluids and wastewater 
      of machining using dispersive liquid-liquid microextraction-gas 
      chromatography/mass spectrometry].
PG  - 63-8
AB  - The determination of trichlorobenzenes (TCBs) in water-based cutting fluids and 
      wastewater of machining has been carried out. A gas chromatography/mass 
      spectrometry (GC/ MS) method with selected ion monitoring (SIM) mode was 
      employed. The target analyte was extracted from the matrix using dispersive 
      liquid-liquid microextraction. Comparing with gas chromatography/electronic 
      capture detection (GC/ECD) coupled with traditional sample preparation 
      procedures, e.g. head-space extraction, liquid-liquid extraction and solid-phase 
      extraction, the present method was accurate with broader linear range, better 
      enrichment property, better replicability, easier to be operated and less 
      interference. Overall recoveries were 94.7% - 104.3% with the relative standard 
      deviations (RSDs) of at 2.3% - 7.8%. The detective limits for 1,3,5-, 1,2,4- and 
      1,2,3-trichlorobenzene were 2.0, 6.0 and 3.0 microg/L, respectively. The 
      parameters, such as the nature and volume of extraction solvent, dispersive 
      solvent, extraction time and salt effect, were studied and optimized. Some 
      important factors, e.g., the concentration of common used additives in 
      water-based cutting fluids, which may affect the recoveries and replicabilities 
      for the determination of trichlorobenzenes, have been investigated. The result 
      showed that no significant effects have been observed when the concentrations of 
      NaNO2 and polyethylene glycol (PEG) were up to 1.0%. The present method has been 
      applied for the determination of the trichlorobenzenes in 4 real samples. The 
      result showed that two of them were found to contain these trichlorobenzenes. The 
      TCBs in the samples were 0.15 - 1.67 mg/L.
FAU - Shen, Haoyu
AU  - Shen H
AD  - Analysis and Testing Center, Ningbo Institute of Technology, Zhejiang University, 
      Ningbo 315100, China. haoyushen2000@163.com
FAU - Zhao, Yonggang
AU  - Zhao Y
FAU - Huai, Mingmin
AU  - Huai M
FAU - Jiang, Hailiang
AU  - Jiang H
LA  - chi
PT  - English Abstract
PT  - Journal Article
PL  - China
TA  - Se Pu
JT  - Se pu = Chinese journal of chromatography
JID - 9424804
EDAT- 2009/05/20 09:00
MHDA- 2009/05/20 09:01
CRDT- 2009/05/20 09:00
PHST- 2009/05/20 09:00 [entrez]
PHST- 2009/05/20 09:00 [pubmed]
PHST- 2009/05/20 09:01 [medline]
PST - ppublish
SO  - Se Pu. 2009 Jan;27(1):63-8.