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Books > Science & Mathematics > Biology, life sciences > Life sciences: general issues

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Microautoradiography and Electron Probe Analysis - Their Application to Plant Physiology (Paperback) Loot Price: R1,620 Discovery Miles 16 200 You Save: R130 (7%)

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Microautoradiography and Electron Probe Analysis - Their Application to Plant Physiology (Paperback): U. Luttge
Microautoradiography and Electron Probe Analysis - Their Application to Plant Physiology (Paperback): U. Luttge

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Microautoradiography and Electron Probe Analysis - Their Application to Plant Physiology (Paperback)

U. Luttge

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List price R1,750 Loot Price R1,620 Discovery Miles 16 200 You Save R130 (7%)

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In biological literature, several definitions of quantitative autoradio- graphy are given. The term is defined as either the determination and com- parison of the density of silver grains above various structures or under varying conditions, or the determination of absolute quantities of radio- activity. In both these cases, photometric measurement serves for more rapid and more exact evaluation of grain densities than would be possible by visual counting of the grains. The equipment generally used for the photometric measurement of silver grains consists of a microscope, a photocell, an electronic amplifier system and a display unit. Grains can be made accessible to photometric evaluation by various kinds of microscopic illumination: 1. Substage bright-field illumination. 2. Substage dark-field illumination. 3. Incident dark-field illumination. 4. Vertical bright-field illumination. With all these types of illumination, the relationship between the luminous flux I absorbed by the film, scattered into the objective and reflected or diffracted, and the flux 10 which is not affected by the film is used as a measure of grain density. Since these are differential measurements, the light beam I transmitted by the film is in itself a measure of grain density if the luminous flux 10 incident on the grains is kept constant. This approach has been used in a large number of measuring setups.

General

Imprint: Springer-Verlag
Country of origin: Germany
Release date: December 1972
First published: 1972
Editors: U. Luttge
Dimensions: 234 x 156 x 13mm (L x W x T)
Format: Paperback - Trade
Pages: 246
ISBN-13: 978-3-540-05950-9
Barcode: 9783540059509
Categories: Promotions
Books > Science & Mathematics > Biology, life sciences > Life sciences: general issues
Books > Science & Mathematics > Biology, life sciences > Life sciences: general issues > General
Books > Medicine > General issues > Medical equipment & techniques > Medical research
LSN: 3-540-05950-4

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