Liquid-liquid extraction

The invention relates to formulation of Ketorolac Tromethamine and Phenylephrine Hydrochloride immediate release tablet having less disintegration time. HPLC method was developed and validated for determination of content of Ketorolac Tromethamine and Phenylephrine Hydrochloride in immediate release tablet. UV spectrophotometric method was developed and validated to study drug release profile of Ketorolac Tromethamine and Phenylephrine Hydrochloride in immediate release tablet. Background:…

4.2.3.5. Antioxidant assays in gastric tissue homogenate 4.2.3.5.1. Catalase activity Catalase activity in the gastric tissue was measured according to the procedures of Sinha (1972). One ml of homogenate solution was taken and mixed with 5 ml of phosphate buffer of pH 7.4. To this 4 ml of 0.2 M H2O2 was added and time noted. Exactly after 180 seconds of adding H2O2, a set of 1ml of reaction mixture from the above was taken and 2 ml dichromate acetic acid was added. It was then kept in a boiling…

Protein Separation Using Gel Filtration Chromatography Introduction: Chromatography techniques are one of the most useful methods use for the isolation or separation of macromolecule from a mixture. The most common used chromatography techniques are thin -layer chromatography (TLC), column chromatography, etc. The purpose of this lab exercise is using the gel filtration chromatography to separate different proteins from a mixture based on their size. Also, collecting elutes that run through…

Alveolar bone resorption is a normal physiologic response following teeth extraction. The causes of alveolar bone volume loss can occur before dental extraction due to periodontal disease, periapical pathology and trauma to the teeth and bone. (SchroppL et al.2003) (1, 2). Additionally, the traumatic removal of teeth can cause bone loss and must be prevented (1,3). Finally, the alveolar bone suffers atrophy after tooth extraction, which has been well documented (1, 4, 5). The bundle bone at the…

From the first glance the article “Abortion: To what extent should women be allowed access to abortion in the United Sates written by Facts on File Issues and Controversies” shows a picture of a peaceful protest brewing in front of the nations capitol. Protesters from both pro life and pro choice sides of the debate are holding propaganda signs with bold text stating “ keep abortion legal or defend life.” Some of the signs even have blown up ultrasound images showing fetuses in different stages…

Different Types of Surgical Hair Restoration Procedure Today, hair loss is a very common concern for most of the people around the world. It can not only affect the scalp but sometime the entire body. Men, women or children anyone can experience hair loss. While one of the common causes of baldness is hereditary another cause of baldness can be hormonal imbalance or others. Most people shed 50 to 100 hairs daily that don’t cause hair thinning of scalp as new hair grows at the same time. However,…

Are you pro-choice, or are you pro-life? These are the two common groups of abortion protests. Abortion has been a major issue in society for decade, even before the Roe v. Wade Act. Congress and the government have struggled to find a balance between the two. They are not many restrictions, to the protests, because of our natural human rights. I think there should be more restrictions on abortion, and protests. There are two stances to consider, when talking about abortion. You have…

Calculated from Experiment Solid-Liquid Weight (g) Solid-Liquid % Recovery Liquid-Liquid Weight (g) Liquid-Liquid % Recovery Acid 0.01 20 % 0.028 56 % Phenol 0.011 22 % 0.001 2 % Amine 0.013 26 % 0.005 10 % Neutral 0.03 60 % 0.026 52 % Table 1 shows the data obtained from this experiment of both the solid-liquid extraction (on the left side of the table) and the liquid-liquid extraction method (on the right side of the table). It shows that in the solid-liquid extraction, most of the…

a glass test tube with a conical bottom test tube. Using a microsyringe, the mixture of the extraction solvent ([Hmim][PF6]) and disperser solvent (acetonitrile) was rapidly injected into the previously mentioned aqueous sample. A cloudy solution (water, acetonitrile and [Hmim][PF6] ) was formed in the test tube. The ions reacted with chelating reagent and were extracted into the fine droplets of extraction solvent. The resultant was centrifuged for 5 min at 5000 rpm and bulk aqueous phase was…

Span80/Span85 (3:1) on Ni (II) extraction Span80/Span85 are playing an important parameter and determine to appropriate surfactants can be obtained through the stability of emulsion liquid membrane for Ni(II) extraction. Span 80/Span85 as nonionic surfactants. Figure (9).The study of the efficiency of the highest extractants and reached to 98.7% after studying the surfactant concentration of span 80/span85 (3:1), the surfactant ratio an important in extraction of Ni (II) led to increasing…