Menstrual blood loss measurement: validation of the alkaline hematin technique for feminine hygiene products containing superabsorbent polymers Julia L. Magnay, M.Sc., Tracy M. Nevatte, Ph.D., Vandana Dhingra, M.B.B.S., Shaughn O'Brien, D.Sc. Fertility and Sterility Volume 94, Issue 7, Pages 2742-2746 (December 2010) DOI: 10.1016/j.fertnstert.2010.03.061 Copyright © 2010 American Society for Reproductive Medicine Terms and Conditions
Figure 1 Linear regression analysis of mean blood recovered from known volumes of 50% SMF applied to Always Ultra Normal, Long, and Night towels. Error bars depict SEM. The “true” value (100% recovery) is shown by the dotted line; n = 10 experiments. Fertility and Sterility 2010 94, 2742-2746DOI: (10.1016/j.fertnstert.2010.03.061) Copyright © 2010 American Society for Reproductive Medicine Terms and Conditions
Figure 2 Linear regression analysis of blood recovered from known volumes of 50% SMF applied to Always Ultra Normal, Long, and Night towels. Volumes tested were 0.5–25 mL; n = 135 towels. Composite data from all towel types are shown. Fertility and Sterility 2010 94, 2742-2746DOI: (10.1016/j.fertnstert.2010.03.061) Copyright © 2010 American Society for Reproductive Medicine Terms and Conditions