Introduction High performance liquid chromatography (HPLC) is used to separate compounds in a sample, identify compounds and can even be used to deduce the relative amounts of different compounds in a mixture. HPLC works under the same principle as thin layer chromatography using both a stationary and mobile phase. The mobile phase carries the mixture across the stationary phase which is used to separate the compounds. Although in HPLC mobile phase is tailor made to suit the polarity of the analytes. The mobile phase used in this particular experiment was Methanol and 0.1M sodium dihydrogen phosphate at a ratio of 30:70 and a pH of 4.5, slightly acidic.
Abstract Central lines also known as central venous catheters are an integrated role in today’s health care. They provide the means of delivering the necessary lifesaving fluids, nutrition, blood products, medications, and means for hemodialysis access. But for this convenience comes great risks of bloodstream infections that are caused by the colonization of microorganisms from the external surface on and around the devices providing a pathway while inserted or in use. These types’ central line or catheter related associated bloodstream infections are often preventable. Yet thousands of people die each year or escalates billions of debt to the health care system in the U.S. annually to fight them.
Just over 50% of the population had been immunized against infectious diseases before the earthquake, well below the World Health Organization goal of 90%. According to figures from the Ministry of Public Health and Population, there are also approximately 4,000 amputees that need ongoing support, which is particularly devastating in a country where the majority of the population travels by foot or bicycle (Office of Haiti Special Coordinator, 2011). Cholera is an outbreak caused by the lack of clean water and washing facilities. Clean water and soap will dramatically slow the disease from spreading. There was a Cholera outbreak in Haiti due to the lack of these two basic necessities.
Water Bottle Argument The use of bottled water is a controversial topic. Some people claim that water bottles are bad for the environment. They tend to focus on the waste of producing and disposing bottles and also how transporting the bottles can cause many inefficiencies. It has even been said to drink tap water in order to save money and the planet. These facts are based off the estimate made by The Earth Policy Institute which stated that about 1.5 million barrels of oil are used to make water bottles each year when instead this oil could be used to fuel about 100,000 cars.
Mortality Rates As the medicinal industry becomes more advanced, life quality drastically improves. There are many causes to why mortality rates in the 1500’s were low but there are also multiple factors that helped changed the mortality rates to the way it is currently. Mortality rates of today have decreased vastly compared to the 1500's mortality rates in Europe. “A mortality rate is a measure of the frequency of occurrence of death in a defined population during a specified interval.” There are sub categories in mortality rates, such as crude, cause-specific, age-specific, infant mortality rates, and much more. During the 1500’s in Europe, one in every three or four children born died before the age of 15.
It is very important that a person stays hydrated because water makes up more than half of your body weight, and not staying hydrated can result in your body shutting down and possible death. Your body uses water in many ways, all the cells in your body need water to function. All of your body’s tissues need water, and all of your body’s organs need water to function correctly. Some of the ways that your body uses water are ; water is used to regulate your body’s temperature, you sweet to lower your temperature when your body is overheating. Water is also used to carry vitamins and minerals to our body’s cells.
Many social and economic barriers are a part of why many Americans are not receiving proper healthcare. (Lavizzo-Mourey, R, (2009). We can reduce this by Coordinating care through family doctors and Use insurance to manage chronic diseases (Arnst, C. (2009). Example, if more people seek preventive care and are able to speak to their doctor longer than the 10 minutes most providers are with the patient more problems can be addressed and preventive standards can be set in place. This can save the nation an estimated $25 to $50 billion a year for not repeating visits for duplicate complaints or follow up cost.
(www.who.int) Other unsafe practices, such as poor collection and disposal of dirty injection equipment, expose healthcare workers and the community to the risk of needle stick injuries. The most recent study performed indicates that each year unsafe injections cause an estimated 1.3 million early deaths, a total loss 26 million years of life, and an annual burden of USD 535 million in direct medical costs. Unsafe injection practices are a powerful engine to transmit blood-borne pathogens, including hepatitis B virus (HBV), hepatitis C virus (HCV) and human
II. Overview Acetone is a clear, colorless, low-boiling, flammable and volatile liquid characterized by rapid evaporation and a faintly aromatic, sweetish odor. It readily mixes with most organic solvent and mixes completely with water. However, compatibility should be checked prior to mixing with other solvents or materials. Acetone is one of the most widely used industrial solvents and is increasingly used as a chemical intermediate.
Pure tungsten is a light gray or whitish metal that is soft enough to be cut with a hacksaw and ductile enough to be drawn into wire or extruded into various shapes. If contaminated with other materials, tungsten becomes brittle and difficult to work with. Tungsten has the highest melting point of all metallic elements and is used to make filaments for incandescent light bulbs, fluorescent light bulbs and television tubes. Tungsten expands at nearly the same rate as borosilicate glass and is used to make metal to glass seals. Tungsten is also used as a target for X-ray production, as heating elements in electric furnaces and for parts of spacecraft and missiles which must withstand high temperatures.