Hi Mohammed, you can only derive a protein concentration from a competitive ELISA under very special circumstances. If you are not sure whether you have these conditions in your experiment you should work with IC50 values.
About Lead-Based Paint. Lead is a highly toxic metal that may cause a range of health problems, especially in young children. When lead is absorbed into the body, it can cause damage to the brain and other vital organs, like the kidneys, nerves and blood. Lead may also cause behavioral problems, learning disabilities, seizures and in extreme cases, death.
NOTE: If work is being done under an order from a government agency, any method for removing lead-based paint should be cleared with that agency. Special regulations or conditions may apply. Before the 1970s, household paint often contained lead. As lead paint ages, it can chip or crumble into dust.Exposure to lead-paint dust or chips can cause serious health problems. Children and pregnant women are at higher risk. So, if you live in or own an older home, you need to know how to protect yourself and others.xposure to lead-paint dust or chips can cause serious health problems. Children and pregnant women are at higher risk. So, if you live in or own an older home, you need to know how to protect yourself and others.