PMID- 27430500
OWN - NLM
STAT- MEDLINE
DCOM- 20180126
LR  - 20191210
IS  - 1618-2650 (Electronic)
IS  - 1618-2642 (Linking)
VI  - 408
IP  - 24
DP  - 2016 Sep
TI  - Using activated attapulgite as sorbent for solid-phase extraction of melamine in 
      milk formula samples.
PG  - 6671-7
LID - 10.1007/s00216-016-9779-2 [doi]
AB  - In this study, a simple solid-phase extraction (SPE) approach by using activated 
      attapulgite as sorbent was successfully developed for the determination of 
      melamine in milk formula samples. Crucial factors impacting the extraction 
      efficiency, including sample solvent, elution solvent, and sample loading volume, 
      were investigated. Under the optimal extraction conditions, the sample loading 
      volume was up to 200 mL and the adsorption capacity of the melamine gave rise to 
      1154 mug g(-1). Excellent linear calibration curves (r (2)  > 0.999) were 
      achieved, and then the limit of detection (S/N = 3) and the limit of 
      quantification (S/N = 10) were found to be 0.15 and 0.5 ng mL(-1), respectively. 
      The recoveries of the melamine spiked in four milk formula samples at three 
      concentration levels ranged from 83.5 to 111.0 % with relative standard 
      deviations (RSDs) less than 10.2 %. Furthermore, RSDs of batch to batch (n = 4) 
      of the acidified attapulgite used in this developed method were in the range of 
      2.3 approximately 7.3 %. In comparison to the commercial Oasis MCX, the acidified attapulgite 
      sorbent even outperformed (at least in terms of reproducibility) for melamine 
      analysis in real food samples. Because of its simplicity, the newly developed SPE 
      method based on acidified attapulgite nanoparticles should provide a promising 
      tool for daily monitoring of doped melamine in milk formula or other complex 
      matrices.
FAU - Wang, Ting-Ting
AU  - Wang TT
AD  - School of Materials and Chemical Engineering/School of Safety Engineering, Ningbo 
      University of Technology, Ningbo, Zhejiang, 315016, China. shiming-49@163.com.
FAU - Xuan, Rong-Rong
AU  - Xuan RR
AD  - Obstetrical Department, Affiliated Hospital of Ningbo University School of 
      Medicine, Ningbo, Zhejiang, 315016, China.
FAU - Ma, Jun-Feng
AU  - Ma JF
AD  - Department of Biological Chemistry, The Johns Hopkins University School of 
      Medicine, 25 N. Wolfe Street, Baltimore, MD, 21205-2185, USA.
FAU - Tan, Yao
AU  - Tan Y
AD  - Ningbo Entry-Exit Inspection and Quarantine Bureau, Ningbo, Zhejiang, 315016, 
      China.
FAU - Jin, Zhen-Feng
AU  - Jin ZF
AD  - School of Materials and Chemical Engineering/School of Safety Engineering, Ningbo 
      University of Technology, Ningbo, Zhejiang, 315016, China.
FAU - Chen, Yi-Hui
AU  - Chen YH
AD  - Ningbo Entry-Exit Inspection and Quarantine Bureau, Ningbo, Zhejiang, 315016, 
      China.
FAU - Zhang, Li-Hua
AU  - Zhang LH
AD  - Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute 
      of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 
      Liaoning, 116023, China.
FAU - Zhang, Yu-Kui
AU  - Zhang YK
AD  - Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute 
      of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 
      Liaoning, 116023, China.
LA  - eng
PT  - Journal Article
PT  - Validation Study
DEP - 20160718
PL  - Germany
TA  - Anal Bioanal Chem
JT  - Analytical and bioanalytical chemistry
JID - 101134327
RN  - 0 (Magnesium Compounds)
RN  - 0 (Silicon Compounds)
RN  - 0 (Triazines)
RN  - N3GP2YSD88 (melamine)
RN  - U6V729APAM (attapulgite)
SB  - IM
MH  - Adsorption
MH  - Animals
MH  - Food Analysis/*methods
MH  - Food Contamination/*analysis
MH  - Limit of Detection
MH  - Magnesium Compounds/*chemistry
MH  - Milk/*chemistry
MH  - Silicon Compounds/*chemistry
MH  - Solid Phase Extraction/*methods
MH  - Triazines/analysis/*isolation & purification
OTO - NOTNLM
OT  - Attapulgite
OT  - Hydrophilic interaction
OT  - Ion exchange interaction
OT  - Milk formula sample
OT  - Solid-phase extraction
EDAT- 2016/07/20 06:00
MHDA- 2018/01/27 06:00
CRDT- 2016/07/20 06:00
PHST- 2016/04/12 00:00 [received]
PHST- 2016/07/07 00:00 [accepted]
PHST- 2016/06/24 00:00 [revised]
PHST- 2016/07/20 06:00 [entrez]
PHST- 2016/07/20 06:00 [pubmed]
PHST- 2018/01/27 06:00 [medline]
AID - 10.1007/s00216-016-9779-2 [pii]
AID - 10.1007/s00216-016-9779-2 [doi]
PST - ppublish
SO  - Anal Bioanal Chem. 2016 Sep;408(24):6671-7. doi: 10.1007/s00216-016-9779-2. Epub 
      2016 Jul 18.