Carrying out column chromatography. The column. In thin layer chromatography, the stationary phase is a thin layer of silica gel or alumina on a glass, metal or plastic plate. Column chromatography works on a much larger scale by packing the same materials into a vertical glass column.
Types of Fertility Tests for Women. There are a number of types of fertility testing that can help our Houston-area fertility doctors to establish the source of a coupleâs infertility. Fertility tests for women can include: There are several hormones that must work together in the female body for pregnancy to occur and progress properly.
How to choose a doctor for your pregnancy. Once you find out youâre pregnant, the decision-making begins. Youâll need to choose the doctor who will oversee your pregnancy and eventually deliver your baby. The doctor you choose will have a big role throughout your pregnancy. Itâs important that you make an informed decision. There are several types of doctors that are medically trained to deliver your baby when the time comes. Family practitioners and obstetrician-gynecologists, or OB-GYNs, are some of the most popular medically trained doctors that can deliver your baby.