Abstract
A simple, efficient and environmentally friendly method has been established for the analysis of organic components in wood vinegar (WV) by dispersive liquid-liquid micro-extraction based on solidification of floating organic droplet (DLLME-SFO) coupled with GC/MS. Several variables that affect the extraction efficiency, including the type and volume of the extractant and dispersant, extraction time and the mass fraction of sodium chloride were optimized. Under the optimum conditions, the sample extracted were analyzed by GC/MS. The result shows that, apart from the main component of acetic acid, many kinds of ketone compound, phenol compound, ester compound, aldehyde and alcohol compound exist in the WV. The proposed method has been successfully employed to determine the organic components in the WV.
Highlights
With the rapid development of agriculture, agricultural mechanization has won greater popularity around the world and straw of crops has attracted global attention
The selection of an appropriate solvent is limited by several factors, such as its immiscibility with water, low melting point of 10-30°C, lower density than water, low volatility, the analytes and the experimental working conditions. After these characteristics are analyzed, the commonly used extraction solvent are 1-undecanol (MP 11°C), n-hexadecane (MP 18°C) and 1-dodecanol (MP 24°C) in DLLME-SFO which were used to study the extraction of the organic components in Wood vinegar (WV)
The results showed that the peak area of the organic components was increased with the extraction time lasting from 1 min to 3 min, the extraction time increased from 3 to 5 min, and the effect on the peak area of the organic components in WV was not evident
Summary
With the rapid development of agriculture, agricultural mechanization has won greater popularity around the world and straw of crops has attracted global attention. Qiang Sun et al.: Analysis of Organic Components by DLLME Based on the Solidification of a Floating Organic Droplet Followed with GC/MS in Wood Vinegar procedures for sample pretreatment have played an essential role in obtaining sensitive and accurate results. Many methods such as liquid-liquid extraction (LLE) are applied to the pretreatment of the analyzing sample with organic reagents. A new method called DLLME-SFO was introduced by Huang [20, 21] and Feng [22] As to this method, the analytes are extracted into a small volume of organic solvent in the sample and are further separated by centrifugation. The result reveals that the proposed method is simple, efficient, practical, and environmentally friendly
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
