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Studies from Agricultural University in the Area of Pesticides Reported (Enrichment of neonicotinoid insecticides from lemon juice sample with...

August 29, 2014



Studies from Agricultural University in the Area of Pesticides Reported (Enrichment of neonicotinoid insecticides from lemon juice sample with magnetic three-dimensional graphene as the adsorbent followed by determination with high-performance ...)

By a News Reporter-Staff News Editor at Science Letter -- Investigators discuss new findings in Pesticides. According to news reporting from Baoding, People's Republic of China, by NewsRx journalists, research stated, "A novel 3D-graphene (3D-G) magnetic nanomaterial was prepared and used as an adsorbent for the extraction of four neonicotinoid insecticides (acetamiprid, imidacloprid, thiacloprid, and thiamethoxam) from lemon juice sample. Then, HPLC with UV detection was applied for the determination of the neonicotinoid insecticides desorbed from the 3D-G magnetic nanomaterial."

The news correspondents obtained a quote from the research from Agricultural University, "The main experimental parameters that affect the extraction efficiencies such as the amount of 3D-G magnetic nanomaterial, sample solution pH, extraction time, salting-out effect, and desorption conditions were studied and optimized. As a result, the linear concentration range of the method was from 0.3 to 100.0 ng/mL for thiacloprid, from 0.5 to 100.0 ng/mL for imidacloprid and acetamiprid, and from 1.0 to 100.0 ng/mL for thiamethoxam, with correlation coefficients of 0.9965-0.9985, respectively. The LODs of the method based on an S/N of 3 were between 0.08 and 0.2 ng/mL."

According to the news reporters, the research concluded: "The enrichment factors obtained were between 67 and 427, and the RSDs (n=6) were in the range from 4.6 to 7.1%, and the recoveries of the method fell in the range of 88.75 to 111."

For more information on this research see: Enrichment of neonicotinoid insecticides from lemon juice sample with magnetic three-dimensional graphene as the adsorbent followed by determination with high-performance liquid chromatography. Journal of Separation Science, 2014;37(11):1276-82. (Wiley-Blackwell - www.wiley.com/; Journal of Separation Science - onlinelibrary.wiley.com/journal/10.1002/(ISSN)1615-9314)

Our news journalists report that additional information may be obtained by contacting L. Liu, College of Science, Agricultural University of Hebei, Baoding, People's Republic of China. Additional authors for this research include T. Feng, C. Wang, Q. Wu and Z. Wang (see also Pesticides).

Keywords for this news article include: Asia, Baoding, Pesticides, Insecticides, Imaging Technology, People's Republic of China, High Performance Liquid Chromatography.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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