Extraction Method of Urinary Methamphetamine Using Non-chlorinated Organic Solvent.
نویسندگان
چکیده
منابع مشابه
European Chlorinated Solvent Association
The chlorinated solvent, methylene chloride (also known as dichloromethane) has been used in industry for over 80 years. Its unique combination of properties low boiling point, high solvency power, relative inertness, low toxicity and non flammability has led to its wide variety of applications, such as paint and varnish removal, as an extraction medium/process solvent, and in aerosols, electro...
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در سال های اخیر، تقاضای استفاده از تئوری خطی ویسکوالاستیسیته بیشتر شده است. با افزایش استفاده از کامپوزیت های پیشرفته در صنایع هوایی و همچنین استفاده روزافزون از مواد پلیمری، اهمیت روش های دقیق طراحی و تحلیل چنین ساختارهایی بیشتر شده است. این مواد جدید از خودشان رفتارهای مکانیکی ارائه می دهند که با تئوری های الاستیسیته و ویسکوزیته، نمی توان آن ها را توصیف کرد. این مواد، خواص ویسکوالاستیک دارند....
Contents 1 The Possibility of using Solvent - Solvent Extraction
This report investigates the use of solvent-solvent extraction for the secondary concentration of lead and thorium. The extraction reagents investigated in this report are: For the lead extraction: diethlyammonium diethyldithiocarbamate (DDDC) For the thorium extraction: trioctylphosphinc oxide (TOPO) and di-(2-ethylhexyl)phosphoric add (HDEHP). For all of the extractions 2-octanone was used as...
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INTRODUCTION The United Nations Environmental Program (UNEP) has been implemented in an effort to combat the release of selected persistent organic pollutants (POPs). POPs are found in environmental samples such as soils, sludges, solid and semisolid waste, and sediments. POPs are also found in biological samples such as human breast milk, and fish tissue. UNEP is interested in eliminating POPs...
متن کاملExtraction of betulin, trimyristin, eugenol and carnosic acid using water-organic solvent mixtures.
A solvent system consisting of ethyl acetate, ethyl alcohol and water, in the volume ratio of 4.5:4.5:1, was developed and used to extract, at room temperature, betulin from white birch bark and antioxidants from spices (rosemary, thyme, sage, and oregano) and white oak chips. In addition, under reflux conditions, trimyristin was extracted from nutmeg using the same solvent system, and eugenol ...
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ژورنال
عنوان ژورنال: Eisei kagaku
سال: 1997
ISSN: 0013-273X
DOI: 10.1248/jhs1956.43.55