X. Experimental researches on vegetable assimilation and respiration.—No. I. On a new method for investigating the carbonic acid exchanges of plants
For the methods employed up to the present for the determination of CO 2 in its physiological relations, Botany is indebted to all three classes of chemical analysis, to volumetric, gravimetric, and gasometric analysis. To the last belong those methods which have been of great value in giving the re...
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crroyalsociety:10.1098/rstb.1895.0010 2024-06-02T08:05:13+00:00 X. Experimental researches on vegetable assimilation and respiration.—No. I. On a new method for investigating the carbonic acid exchanges of plants 1895 http://dx.doi.org/10.1098/rstb.1895.0010 https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.1895.0010 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Philosophical Transactions of the Royal Society of London. (B.) volume 186, page 485-502 ISSN 0264-3839 2053-924X journal-article 1895 crroyalsociety https://doi.org/10.1098/rstb.1895.0010 2024-05-07T14:16:50Z For the methods employed up to the present for the determination of CO 2 in its physiological relations, Botany is indebted to all three classes of chemical analysis, to volumetric, gravimetric, and gasometric analysis. To the last belong those methods which have been of great value in giving the relation of O 2 and CO 2 exchange within a given time in either respiration or assimilation. These were the earliest used, and consist in placing a plant or part of a plant within a closed receiver containing a suitable mixture of gases and determining the exact composition of this before and after the experiment. From the reduced volumes, measured after absorption of the CO 2 by potash, and of the O by phosphorus, the quantities of either gas liberated or destroyed can be calculated. To De Saussure, Boussingault, Godlewski, and, above all, Pfeffer, we owe researches based on this method. The method has yielded valuable results in past times, but the corrections and actual analysis, according to the old standard methods of Bunsen, are lengthy and laborious, while in the modern procedure, simplification of operation is obtained somewhat at the expense of accuracy. The whole method is open to the physiological objections to the use of a closed chamber, and to the continuous, and in a lengthy experiment often considerable, variations of composition which the contained gas must undergo. Nor is it adapted to yield a series of connected results. Article in Journal/Newspaper Carbonic acid The Royal Society Philosophical Transactions of the Royal Society of London. (B.) 186 485 502 |
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For the methods employed up to the present for the determination of CO 2 in its physiological relations, Botany is indebted to all three classes of chemical analysis, to volumetric, gravimetric, and gasometric analysis. To the last belong those methods which have been of great value in giving the relation of O 2 and CO 2 exchange within a given time in either respiration or assimilation. These were the earliest used, and consist in placing a plant or part of a plant within a closed receiver containing a suitable mixture of gases and determining the exact composition of this before and after the experiment. From the reduced volumes, measured after absorption of the CO 2 by potash, and of the O by phosphorus, the quantities of either gas liberated or destroyed can be calculated. To De Saussure, Boussingault, Godlewski, and, above all, Pfeffer, we owe researches based on this method. The method has yielded valuable results in past times, but the corrections and actual analysis, according to the old standard methods of Bunsen, are lengthy and laborious, while in the modern procedure, simplification of operation is obtained somewhat at the expense of accuracy. The whole method is open to the physiological objections to the use of a closed chamber, and to the continuous, and in a lengthy experiment often considerable, variations of composition which the contained gas must undergo. Nor is it adapted to yield a series of connected results. |
format |
Article in Journal/Newspaper |
title |
X. Experimental researches on vegetable assimilation and respiration.—No. I. On a new method for investigating the carbonic acid exchanges of plants |
spellingShingle |
X. Experimental researches on vegetable assimilation and respiration.—No. I. On a new method for investigating the carbonic acid exchanges of plants |
title_short |
X. Experimental researches on vegetable assimilation and respiration.—No. I. On a new method for investigating the carbonic acid exchanges of plants |
title_full |
X. Experimental researches on vegetable assimilation and respiration.—No. I. On a new method for investigating the carbonic acid exchanges of plants |
title_fullStr |
X. Experimental researches on vegetable assimilation and respiration.—No. I. On a new method for investigating the carbonic acid exchanges of plants |
title_full_unstemmed |
X. Experimental researches on vegetable assimilation and respiration.—No. I. On a new method for investigating the carbonic acid exchanges of plants |
title_sort |
x. experimental researches on vegetable assimilation and respiration.—no. i. on a new method for investigating the carbonic acid exchanges of plants |
publisher |
The Royal Society |
publishDate |
1895 |
url |
http://dx.doi.org/10.1098/rstb.1895.0010 https://royalsocietypublishing.org/doi/pdf/10.1098/rstb.1895.0010 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_source |
Philosophical Transactions of the Royal Society of London. (B.) volume 186, page 485-502 ISSN 0264-3839 2053-924X |
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https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rstb.1895.0010 |
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Philosophical Transactions of the Royal Society of London. (B.) |
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186 |
container_start_page |
485 |
op_container_end_page |
502 |
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1800750001087840256 |