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The Royal Society: Science in the Making

Printed proof, 'On the estimation of uric acid in urine: a new process by means of saturation with ammonium chloride' by Frederick Gowland Hopkins

Reference number: PP/20/8

Date: 1892

Description

Hopkins writes: 'The process to be described depends upon the following facts:— 1. Ammonium urate is wholly insoluble in saturated solutions of ammonium chloride. 2. If solutions, such as urine, which contain the mixed urates of different bases be saturated with ammonium chloride, the large mass-influence of the latter ensures the rapid and complete conversion of all the uric acid into biurate of ammonium, which, in accordance with (1), is, pari passu, thrown out of solution. In the case of urine, saturation with ammonium chloride is followed by a complete precipitation of the uric acid present in the course of two hours at most.'

Annotations in pencil and ink.

Subject: Biology / Chemistry

Received 30 May 1892. Read 16 June 1891. Communicated by Philip Henry Pye-Smith.

A version of this paper was published in volume 52 of the Proceedings of the Royal Society as 'On the estimation of uric acid in urine: a new process by means of saturation with ammonium chloride'.

Reference number
PP/20/8
Earliest possible date
1892
Physical description
Ink and graphite pencil on paper
Page extent
8 pages
Format
Printed

Creator name

Frederick Gowland Hopkins

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Citation

Frederick Gowland Hopkins, Printed proof, 'On the estimation of uric acid in urine: a new process by means of saturation with ammonium chloride' by Frederick Gowland Hopkins, 1892, PP/20/8, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/pp_20_8/printed-proof-on-the-estimation-of-uric-acid-in-urine-a-new-process-by-means-of-saturation-with-ammonium-chloride-by-frederick-gowland-hopkins, accessed on 10 October 2024

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  • Proceedings Papers

    Dates: 1882 - 1894

    The archival collection known as 'Proceedings Papers' is comprised of manuscripts and occasional proofs of scientific papers sent to the Royal Society which were read before meetings of Fellows and printed in full in the Proceedings of the Royal Society.

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