PMID- 25764662
OWN - NLM
STAT- MEDLINE
DCOM- 20150901
LR  - 20190923
IS  - 1000-8713 (Print)
IS  - 1000-8713 (Linking)
VI  - 32
IP  - 11
DP  - 2014 Nov
TI  - [Determination of 19 phthalate esters in cucumbers using QuEChERS coupled with 
      gas chromatography-triple quadrupole mass spectrometry].
PG  - 1260-5
AB  - An efficient method using QuEChERS equipped with triple quadrupole GC-MS/MS for 
      the simultaneous detection of 19 phthalate acid ester residues in cucumbers was 
      established. The phthalate acid esters were extracted from cucumber samples by 
      ultrasonic with acetonitrile. The extracts were salted out and centrifuged with 
      anhydrous magnesium sulfate and sodium chloride. The supernatants were enriched 
      by vacuum distillation, and then purified by C18 adsorbent. The 19 phthalate 
      esters were separated on an HP-5ms UI column (30 mx 0.25 mm x 0.25 mum), and 
      determined using MS/MS in multiple reactions monitoring mode. The method showed 
      favorable qualitative and quantitative analysis of the phthalate esters with good 
      linearity (r >/= 0.9995) in the linear range of 10-5,000 mug/kg and the limits of 
      detection (LODs) were 0.2-3.5 mug/kg. With the proposed method, the recoveries 
      were evaluated in cucumbers at the spiked levels of 10, 100 and 500 mug/kg. The 
      results showed that the average recoveries were ranged from 63.3%-127.8% and the 
      relative standard deviations (RSDs) were 0.5%-13.3%. In short, the proposed 
      method with high sensitivity and good accuracy can meet the determination 
      requirements for multi-residues. Furthermore, the method can be applied for the 
      simultaneous determination of phthalate acid esters in cucumbers.
FAU - Sun, Xin
AU  - Sun X
FAU - Qi, Li
AU  - Qi L
FAU - Qin, Tingting
AU  - Qin T
FAU - Wang, Minglin
AU  - Wang M
LA  - chi
PT  - Journal Article
PL  - China
TA  - Se Pu
JT  - Se pu = Chinese journal of chromatography
JID - 9424804
RN  - 0 (Esters)
RN  - 0 (Phthalic Acids)
RN  - 6O7F7IX66E (phthalic acid)
SB  - IM
MH  - Cucumis sativus/*chemistry
MH  - Esters/*analysis
MH  - Food Analysis/*methods
MH  - Gas Chromatography-Mass Spectrometry
MH  - Limit of Detection
MH  - Phthalic Acids/*analysis
MH  - Tandem Mass Spectrometry
EDAT- 2015/03/15 06:00
MHDA- 2015/09/02 06:00
CRDT- 2015/03/14 06:00
PHST- 2015/03/14 06:00 [entrez]
PHST- 2015/03/15 06:00 [pubmed]
PHST- 2015/09/02 06:00 [medline]
AID - 10.3724/sp.j.1123.2014.05004 [doi]
PST - ppublish
SO  - Se Pu. 2014 Nov;32(11):1260-5. doi: 10.3724/sp.j.1123.2014.05004.