Hemoglobin is the main component of red blood cells and serves as the transporter for oxygen and carbon dioxide in the blood. Hemoglobin concentration (Hb) is usually reported as grams of hemoglobin per deciliter of blood (g/dL). Hb is commonly measured by the cyanhemoglobin (hemoglobin cyanide) method. A sample of blood is diluted in a solution of potassium ferricyanide and potassium cyanide, which oxidizes hemoglobin to hemiglobin (Hi; methemoglobin) and then converts it to hemoglobin cyanide (HiCN). The concentration of HiCN is then measured by spectrophotometry.
Method. Preheat oven to 200oC. Wipe roast with damp paper towels. Combine flour, mustard, salt and pepper in a small bowl and rub all over beef. Place the roast, fat side up in a roasting pan and roast, uncovered, for 30-40 minutes for a rare roast or 40-50 minutes for a medium roast.Once cooked, cover with foil and let stand for 15-20 minutes for easier carving. Reserve the cooking juices to make a gravy or jus, if desired.ombine flour, mustard, salt and pepper in a small bowl and rub all over beef. Place the roast, fat side up in a roasting pan and roast, uncovered, for 30-40 minutes for a rare roast or 40-50 minutes for a medium roast. Once cooked, cover with foil and let stand for 15-20 minutes for easier carving.
5. Place ribs on the cool side of the grill and cover. Cook for 2 hours turning every 30 minutes until the meat easily pulls away from the bones and has a rosy glow exterior. When turning the ribs work quickly to close cover and retain as much heat as possible in the grill.6.ooking beef ribs can be done with dry heat, moist heat, smoked or any combination. Cooking with moist heat the meat tends to fall off the bones a little easier however to acquire a great taste, some of the best bbq ribs recipes use a dry and smokey heat that really bring out that great prime rib flavor.