Bioassay
From Health Encyclopedia
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Scope Note
a method of measuring the effects of a biologically active substance using an intermediate in vivo or in vitro tissue or cell model under controlled conditions.
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Facts (generated by robot; please edit if you find it inaccurate)
- Neal Associate Professor of Weed Science Department of Floriculture and Ornamental Horticulture What is a Bioassay? A bioassay is a technique for determining if herbicide (or other chemical) residues are present in soil or water at high enough concentrations to adversely affect plant growth.
- A baseline thyroid bioassay is required prior to handling or observing work with volatile radioiodine for the first time.
- CONDITIONS UNDER WHICH BIOASSAY IS NECESSARY Routine bioassay is necessary when an individual handles in open form, unsealed quantities of radioactive iodine that exceed those shown in Table 1.
- Bioassay is not as precise as chemical testing, and is not as widely used.
- A bioassay is able to detect infectivity directly, rather than by relying on a correlation with the presence of modified PrP as detected by immunological or histological methods.
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