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 ?
Whereas absorptiometers measure the absorption of radiation by skeletal calcium, quantitative computed tomography (QCT) scanners measure the actual density of a volume of bone.
Comparative performance in vitro and in vivo of lunar DPX and Hologic QDR-1000 dual energy x-ray absorptiometers.
Because there are far more conventional systems than dual energy x-ray absorptiometers.