On August 30, 2020, Sutcharitchan, Chayanis; Miao, Shui; Li, Wenting; Liu, Jiaming; Zhou, Heng; Ma, Yingxian; Ji, Shen; Cui, Yajun published an article.Name: 1,3-Diphenylurea The title of the article was High performance liquid chromatography-tandem mass spectrometry method for residue determination of 39 plant growth regulators in root and rhizome Chinese herbs. And the article contained the following:
A simple, rapid, and effective method based on salting-out extraction and LC-MS/MS techniques was developed for the determination of 39 plant growth regulator (PGR) residues in two of the most common root and rhizome Chinese herbs, Codonopsis Radix (Dangshen) and Notoginseng Radix et Rhizoma (Sanqi). The extraction process was performed with acetonitrile-water (5:1) and citrate buffer extraction salt. The performance of the method was validated in accordance with the anal. quality control criteria of SANTE/11813/2017 guidelines. Analyte recoveries of 79.49-109.41% (Dangshen) and 80.17-102.81% (Sanqi) were achieved. The limit of quantifications (LOQs) were determined with the consideration of accuracy and precision. LOQs were lower than the lowest residue limits in EU pesticide regulation (10μg/kg) for most PGRs. Moreover, the method was successfully applied in the anal. of 35 batches of Dangshen, and 60 batches of Sanqi products. The concentration of eleven PGRs were determined in analyzed samples. The experimental process involved the reaction of 1,3-Diphenylurea(cas: 102-07-8).Name: 1,3-Diphenylurea
The Article related to rhizome root hplc dangshen sanqi, chinese medicine, dangshen, determination method, hplc-ms/ms, pesticide residue, plant growth regulator, sanqi, Food and Feed Chemistry: Analysis and other aspects.Name: 1,3-Diphenylurea
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