EXPERIMENT :
Iron in Breakfast Cereal by Atomic Absorption Spectroscopy
OBJECTIVES : 1) To determine the actual iron content of different brands of cereals 2) To compare the experimental results with the values listed on the manufacturer’s labels.
INTRODUCTION :
Iron is one of the important minerals that is required for our bodies to function properly. Most of the iron in our body is found in the blood such as haemoglobin, approximately 60 -70% of the human body’s iron is found in the haemoglobin, a protein in the blood that transports oxygen. Iron is also present in muscle tissue and some enzymes. There are two types of iron in the body which are “Heme Iron” from animal products and “Non-Heme Iron” vegetables and
…show more content…
Concentration of iron standard | Amount of 100 ppm Iron Standard to be added | Volume of volumetric flask | 5 ppm | 0.05 ml | 50 ml | 10 ppm | 0.10 ml | 50 ml | 15 ppm | 0.15 ml | 50 ml | 20 ppm | 0. 20 ml | 50 ml | 25 ppm | 0.25 ml | 50 ml |
Running The Measurement Of Atomic Absorbance : 1) First, the blank Deionized water is aspirated 2) Then, the standards are aspirated and the absorbance for each one is recorded. 3) Lastly, the sample is aspirated and absorbance for each one is recorded. 4) The correlation coefficient obtained must be 0.999
RESULTS :
Calibration Curve Slope | 0.00762 | Calibration Curve Intercept | 0.00000 | Calibration Curve Correlation Coefficient | 0.999858 | Calibration Curve Type | Linear Through Zero | Current Sample Concentration | 4.344 ppm |
Std # | Standard ID | Entered Concentration | Calculated Concentration | Blank | DI water | 0 | 0.000 | 1 | Std 1 | 5.0 | 4.786 | 2 | Std 2 | 10.0 | 10.152 | 3 | Std 3 | 15.0 | 14.953 | 4 | Std 4 | 20.0 | 20.004 | 5 | Std 5 | 25.0 | 25.004 |
CALCULATION :
Value of Iron Content in Cereal (wt / wt) Mass of sample : 4.7970 g Sample concentration (curve) : 4.344 ppm 4.344 mg /L x (1 g/1000 mg) x
2.Iron extremely impactful in our life. One, it carries oxygen from our lungs through the blood stream and releases it in the body where it’s needed. Is also built into the enzymes that help us detoxify poisons and convert sugars and energy. Iron is also responsible for the healthy immune system function. Without enough iron in our system, skin gets pale, people can feel confused, dizzy, cold, and extremely fatigued. It explains why some areas of the world’s oceans are
Iron is a mineral found in the human body. It is a part of the protein hemoglobin of a cell, which transports oxygen from our lungs throughout our bodies.
Iron Deficiency Anemia affects millions of individuals across the world. This disease strikes many more women than men and has harmful effects on all who suffer from this deficiency that causes oxygen-carrying capacity to decrease. The causes can vary amongst different groups, but the aggravating symptoms remain constant. Much of the research on Iron Deficiency Anemia concentrates on not only the treatment of this disease, but also the prevention of it. To attain a better understanding of how to treat this problem, one must clearly know what Iron Deficiency Anemia means, what causes this disease, the effects of it, and finally how to cure it.
Hemochromatosis is a genetic disease in which there is too much iron that builds up in your body, this is referred to as an iron overload. Iron is an essential nutrient found in many foods but can be toxic to our bodies if we have to much. “Normally, humans absorb about 8-10% of the iron found in foods that they eat.” People with Hemochromatosis can absorb up to four times more iron than a normal human being. Since our bodies have no natural way to get rid of the extra iron, it gets stored in your body tissue including the liver, heart, pancreas and many other areas of our body can also be infected by this iron overload.
Iron is used in metabolical functions, in red-blood cells to carry oxygen, and in enzymes, to speed up reaction rates. One molecule that contains iron is hemoglobin, found in red-blood cells.
Iron is an important nutrient because it helps carry oxygen in the hemoglobin in red blood cells around the human body. When a healthy iron supply is reached, the body immediately stops absorbing the nutrient, and just lets it past through the digestive system. However, people with hemochromatosis absorb all the iron from the food consumed, past healthy levels. All the extra iron spreads throughout the body, and unevitably causes great damage to major organs and almost all other parts of the body. According to Survival of the Sickest, "hemochromatosis can lead to liver failure, heart failure, diabetes, arthritis, infertility, psychiatric disorders,... cancer," and other diseases if left untreated (Maulem
There are a lot of types of breakfast cereal in our live. Breakfast cereal provides many nutrients to us. Iron is one of the most important nutrients in the diet. Breakfast is considered to be
Food supplies us with many minerals, but the way in which our bodies are able to absorb them varies. The degree to which ingested nutrient is absorbed from food sources and is available to our body is called bioavailability. The bioavailability of minerals depends on many factors. The mineral content listed in food composition table for amount of a mineral in a food is just a starting point for estimating the actual contribution the food will make to our mineral needs. For example spinach contains much calcium but only 5% can be absorbed because of the vegetables high concentration of oxalic acid, a calcium binder. Usually 25% of calcium is absorbed by adults.
According to the archaeologists, either the ancient Maya, or the Olmec, are believed to have cultivated the cocoa tree around 1000 B.C. for the very first time. Cocoa was considered divine in origin, and that established its importance in the world of the Maya. In the Mayan and Aztec cultures, cocoa and its preparation were presented greatly. The classic preparation of cocoa involved harvesting the beans, roasting them, after the fermentation process, and crushing them into a paste. It was then mixed with water, to which were often added corns, chili peppers, and other spices.
Purpose: When conducting this experiment we were trying to figure out the types of nutrients were in a McDonald’s Happy Meal. Background: Before starting this experiment we all had a general sense of was what is in a Mcdonald’s Happy Meal. We could assume the main nutrient in each part of the meal. Using the information of what type of nutrients and organic molecules we were able to suspect what was in the Happy Meal.
In the beginning of every cross country season, my coach stressed the importance that all the female runners must take one iron pill a day. I never gave in to this because he never gave us an explanation, so I saw this as merely a mental booster rather than actual improvement present in my body. After doing some research, I found out that iron is an essential nutrient used by the human body for to transport oxygen and produce energy. Iron is present in every single cell of the body and carries oxygen from the lungs to the tissue in the form of hemoglobin, which is the oxygen-transport protein in red blood cells. Lack of iron results in both fatigue and weakness, which is definitely harmful to a cross country runner. Iron deficiency affects women about 8-10 times more than men, which is why it is crucial for women runners to watch their iron levels (Sinclair, Hinton). If iron deficiency worsens, it can lead to anemia. Anemia is when you do not have enough red blood cells, and as a result, less hemoglobin. If a cross country runner has anemia, it can affect their whole season because they are exerting energy without the sufficient amount of oxygen needed to complete each run or workout.
Presumed to have been plaguing humanity since the Viking days, hemochromatosis is a fatal hereditary disease that upsets the body's natural metabolizing of iron. The mineral, although essential to the survival of all living organisms, becomes extremely lethal in abnormally large quantities. Unfortunately, this serves as rather tragic news to the afflicted, since their bodies absorb iron in an uncontrollable manner. A wide variety of medical complications and symptoms, including cancer, infertility, psychiatric disorders, diabetes, arthritis, damage in the overall body chemistry and joints, could consequently occur over a long period of diagnosis. Major organs such as the heart and liver additionally suffer at the hands of hemochromatosis, further adding to the possibility of death if the disease remains unchecked.
The mineral iron (Fe) is a crucial substance for the human body. Many parts of the body require iron in order for the body to function normally. For example, Iron plays an important role in red blood cells. Red blood cells carry oxygen around the body and are mainly composed of haemoglobin, a protein which binds to oxygen and transports it throughout the body. In this molecule, iron is the crucial component which binds to the oxygen. Therefore without iron, the human body cannot transport oxygen to cells throughout the body. Only specific amounts of iron are absorbed by the body to maintain homeostasis. However, iron is a very toxic mineral so if there is too much iron stored in the body, it can lead to serious consequences. People that suffer
Iron is an important element to the scientific community, especially those involved in the branch of chemistry. Consequently, humans rely on iron for many different things. Iron is diverse from all other elements with regards to its natural occurrence, historic and contemporary uses, the origin of its name, and when, how, where, and by whom it was discovered. It also has unique characteristic physical and chemical properties. Without the discovery, and distinctive properties of iron, life on Earth would never be the same as it is now.
Essential for the production of haemoglobin, enzymes and transporting blood around the body, per calorie, kale Kale has more iron than