absorptiometer


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absorptiometer

[əb‚sȯrp·tē′ä·məd·ər]
(analytical chemistry)
An instrument equipped with a filter system or other simple dispersing system to measure the absorption of nearly monochromatic radiation in the visible range by a gas or a liquid, and so determine the concentration of the absorbing constituents in the gas or liquid.
A device for regulating the thickness of a liquid in spectrophotometry.
References in periodicals archive ?
Total body bone mineral content (TBMC) expressed as grams (g), total body bone mineral density (TBMD) expressed as grams per centimeter (g/cm2), and body composition were determined by dual energy x-ray absorptiometer (Hologic QDR 4500W).
Body composition was measured using an Hologic QDR W/1000 whole body X-ray absorptiometer in the Bone and Mineral Service of the Royal Melbourne Hospital.
Body composition was then assessed using a QDR[R] Series Discovery Wi (Hologic, Bedford, MA) dual energy x-ray absorptiometer (DXA).
Comparison of the effect of different reference data on Lunar DPX and Hologic QDR-1000 dual-energy X-ray absorptiometers.