Improvements in diagnostic test sheets

摘要

Diagnostic sheets indicative of ovulatory function are prepared by applying female saliva, or nasal or verical mucous to a sheet impregnated or coated with a substance reacting to chloride ion with colour change. The body liquid may be withdrawn by means of an alginate swab, at daily intervals during a menstrual cycle and the samples applied to separate sheets or different areas of a single filter paper sheet. The preferred reagent is silver chromate or dichromate containing excess silver ions. Preparations of suitable reagent sheets falling with the disclosures of Specification 1103402 and 1103403 are disclosed.