Some examples of substrates used (also known as chromogens) are AEC (3-Amino-9-EthylCarbazole), or DAB (3,3'-Diaminobenzidine). Use of one of these reagents after exposure to the necessary enzyme (e.g., horseradish peroxidase conjugated to an antibody reagent) produces a positive immunoreaction product.
1. Know When You Ovulate after Childbirth. Most women experience an extended period of bleeding immediately after giving birth. The bleeding will get lighter and lighter, lasting about six weeks. It is extremely unlikely that a woman will become pregnant during this time, although it is not impossible.
How Long Does it Take to Get Pregnant After Stopping Birth Control. January 5, 2011 by ds_25061 Leave a Comment. Birth control pills are one method that can help you avoid an unwanted pregnancy. This temporary form of birth control allows you to choose when you want to have a baby.