Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Se Pu. 2013 Nov;31(11):1081-6.

[Determination of 21 phenolic compounds in soil by ultrasonic extraction-gas chromatography].

[Article in Chinese]

Author information

  • 1Nanjing Environmental Monitoring Center, Nanjing 210013, China. yllyj@126.com
  • 2Nanjing Environmental Monitoring Center, Nanjing 210013, China.

Abstract

An effective method was developed to determine phenolic compounds in soil by ultrasonic extraction-gas chromatography (GC). The soil sample was extracted with methylene dichloride-hexane (2:1, v/v) for 3 min with the extraction temperature lower than 50 degrees C for 3 times. The extract was purified by alkaline aqueous solution (pH > 12), and the phenolic compounds were dissolved in aqueous solution. After the organic solution was discarded, the aqueous solution was adjusted to pH <3 and subsequently extracted with methylene dichloride-ethyl acetate (4:1, v/v) twice. The analytes were determined by GC-FID and quantified by external standard method. The limits of quantification for all tested phenolic compounds were 0.01-0.06 mg/kg in about 10 g soil samples. The recoveries were between 62.9% and 111.4% with the relative standard deviations (RSDs) in the range of 4.3%-24.0% (n = 6). The results showed that this method is sensitive, accurate, and suitable for the determination of the 21 phenolic compounds in soil.

PMID:
24558844
[PubMed - in process]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Loading ...
    Write to the Help Desk