The DOI matches its Crossref record.
The spectrophotometric determination of tyrosine and tryptophan in proteins
Open accessAbstract
Research Article| January 01 1946 The spectrophotometric determination of tyrosine and tryptophan in proteins T. W. Goodwin; T. W. Goodwin 1Johnston Laboratories, Department of Biochemistry, University of Liverpool Search for other works by this author on: This Site PubMed Google Scholar R. A. Morton R. A. Morton 1Johnston Laboratories, Department of Biochemistry, University of Liverpool Search for other works by this author on: This Site PubMed Google Scholar Author and article information Publisher: Portland Press Ltd © 1946 CAMBRIDGE UNIVERSITY PRESS1946 Biochem J (1946) 40 (5-6): 628–632. https://doi.org/10.1042/bj0400628 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn Email Cite Icon Cite Get Permissions Citation T. W. Goodwin, R. A. Morton; The spectrophotometric determination of tyrosine and tryptophan in proteins. Biochem J 1 January 1946; 40 (5-6): 628–632. doi: https://doi.org/10.1042/bj0400628 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsBiochemical Journal Search Advanced Search This content is only available as a PDF. © 1946 CAMBRIDGE UNIVERSITY PRESS1946 Article PDF first page preview Close Modal You do not currently have access to this content.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
Retinol-binding protein: the transport protein for vitamin A in human plasma
Kanai, M., Raz, A., & Goodman, D. S. (1968) · Journal of Clinical Investigation · doi:10.1172/jci105889 · Cited by 899
A new acid hydrolysis method for determining tryptophan in peptides and proteins
Penke, B., Ferenczi, R., & Kovács, K. (1974) · Analytical Biochemistry · doi:10.1016/0003-2697(74)90129-8 · Cited by 608
Indoleamine 2,3-dioxygenase. Purification and some properties
Shimizu, T., Nomiyama, S., Hirata, F., & Hayaishi, O. (1978) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(17)30447-7 · Cited by 367
Raz, A., & Goodman, D. S. (1969) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(18)93118-2 · Cited by 270
The trypsin and chymotrypsin inhibitors from avian egg whites
Rhodes, M. B., Bennett, N., & Feeney, R. E. (1960) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(19)76863-x · Cited by 180
Metadata
- Authors
- Goodwin, T. W., & Morton, R. A.
- Venue
- Biochemical Journal
- Publisher
- Portland Press Ltd.
- Published
- 1946-01-01
- Volume
- 40
- Issue
- 5-6
- Pages
- 628-632
- ISSN
- 0306-3283 (ISSN-L)
- OpenAlex
- W2305449604
- Cited by
- 1,514
- References
- 0
- FWCI
- 4.23
- Type
- journal article
- Language
- en
- Open access
- bronze
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: The spectrophotometric determination of tyrosine and tryptophan in proteins. https://app.cochat.ai/papers/10.1042/bj0400628
- The paper
- Goodwin, T. W., & Morton, R. A. (1946). The spectrophotometric determination of tyrosine and tryptophan in proteins. Biochemical Journal. https://doi.org/10.1042/bj0400628
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.