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Diagnostics of female infertility should include: medical history regarding the regularity of menstruation, gynecological examination, determination of the concentration of selected sex hormones, including a single measurement of progesterone level 7 days before the planned menstruation to assess ovulation, ultrasound (USG) at the end of the follicular phase of the cycle (8, 9)

It is a technique applicable to g/l (ppb) concentrations of many elements in aqueous medium upon appropriate sample preparation of biological materials