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.
If you choose to check your cervical position as an indicator of fertility, here are some guidelines: 1  To avoid the possibility of infection, always check your cervix with clean hands. 2  Check the cervix once a day after menses. 3  Check your cervix at the same time every day as it may change throughout the day.