Ccxciii. Vitamin a Determination: Rela- Tion between the Biological, Chemical and Physical Methods of Test
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A Rapid and Sensitive Method for Determina-tion of Morphine in Saliva of Opium Addicts
Background: Saliva is an alternative biological matrix in drug testing. It has several advantages in comparison with other biological fluids such as blood and urine. Collection of saliva is simple, noninvasive and can be controlled under direct observation in drug abusers, or opium addicts. Methods: In the present study we report our experience with saliva collection, liquid-liquid extraction a...
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Background and objectives: Aloe vera has been used as a medicinal herb for thousands of years. Aloe vera leaves can be separated into latex and gel which have biological effects. Aloe gel is a potent source of polysaccharides. When the gel is exposed to air, it quickly decomposes and decays and loses most of its biological activity. There are various processin...
متن کاملDetermination of Vitamin C in Small Volumes of Blood by HPLC/EC
A sensitive procedure for determining total vitamin C (ascorbic acid + dehydrate ascorbic Acid) in a blood drop from a finger prick, before and after the adminis- tration of a vitamin C tablet is described. Analysis was carried out by high per- formance liquid chromatography with electrochemical detection (HPLC/EC). Measurements were taken one hour, two hours and six hours after the adm...
متن کاملINVESTIGATIONS ON THE DRUG-PROTEIN IN TERAC TION OF CERTAIN NEW POTENTIAL LOCAL ANAESTHETICS
Generally, plasma proteins owe their binding capacity to the presence of aminoacid units which enter into intra- and intermolecular hydrophobic bonding with a diverse range of endo- and exogenous chemical substances. The intermolecular interactions between the hydrophobic areas of drug molecules and those of plasma proteins play an important role in drug-macromolecular complex formation and...
متن کاملاثر تجویز داخل نخاعی ویتامین K2 بر رفتارهای دردی در آزمون های Tail flick و فرمالین در موش صحرایی
Background and purpose: Vitamin K2 is one of the derivatives of vitamin K belonging to fat-soluble vitamins’ family. Other derivatives of vitamin K in the brain must be converted to K2 and this can reflect its importance in the nervous system. There are some evidences on analgesic effects of vitamin K. This study investigated the effects of intrathecal administration of vitamin K2 on pain in th...
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تاریخ انتشار 2005