کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10559861 | 969670 | 2011 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ultrasonication-assisted extraction and preconcentration of medicinal products from herb by ionic liquids
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Ionic liquid-based extraction of medicinal or useful compounds from plants was investigated as an alternative to supercritical fluid, cloud point and conventional organic solvent extractions. The method integrated extraction and preconcentration. Medicinal products were first extracted by an ionic liquid solution, part of which was then converted to a hydrophobic form by anion metathesis for preconcentration. The remaining soluble ionic liquid acted as a dispersive agent to enhance the efficiency of preconcentration. Protein in the extract was precipitated spontaneously without addition of further solvents. Ultrasonication assisted this method for extraction and preconcentration of cryptotanshinone, tanshinone I and tanshinone II A from Salvia Miltiorrhiza Bunge. 0.233 mg gâ1, 0.695 mg gâ1 and 0.682 mg gâ1 of each, respectively, were extracted using [OMIM][Cl], and preconcentrated in a [OMIM][PF6] phase at respective concentrations of 148.1, 507.1 and 486.1 μg mLâ1. The method exhibited potential applicability with other medicinal products.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Talanta - Volume 85, Issue 1, 15 July 2011, Pages 701-706
Journal: Talanta - Volume 85, Issue 1, 15 July 2011, Pages 701-706
نویسندگان
Wentao Bi, Minglei Tian, Kyung Ho Row,