{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,11]],"date-time":"2025-09-11T17:01:10Z","timestamp":1757610070948,"version":"3.44.0"},"reference-count":21,"publisher":"Elsevier BV","issue":"1","license":[{"start":{"date-parts":[[1974,5,1]],"date-time":"1974-05-01T00:00:00Z","timestamp":136598400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[1974,5,1]],"date-time":"1974-05-01T00:00:00Z","timestamp":136598400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Analytical Biochemistry"],"published-print":{"date-parts":[[1974,5]]},"DOI":"10.1016\/0003-2697(74)90017-7","type":"journal-article","created":{"date-parts":[[2004,12,8]],"date-time":"2004-12-08T13:24:04Z","timestamp":1102512244000},"page":"129-145","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":8,"title":["A semiautomated system for the production and analysis of sucrose density gradients"],"prefix":"10.1016","volume":"59","author":[{"given":"Christopher S.","family":"Lange","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daniel F.","family":"Liberman","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"year":"1972","key":"10.1016\/0003-2697(74)90017-7_BIB1"},{"year":"1970","author":"Okada","key":"10.1016\/0003-2697(74)90017-7_BIB2"},{"key":"10.1016\/0003-2697(74)90017-7_BIB3","doi-asserted-by":"crossref","first-page":"534","DOI":"10.1038\/212534a0","volume":"212","author":"McGrath","year":"1966","journal-title":"Nature"},{"key":"10.1016\/0003-2697(74)90017-7_BIB4","doi-asserted-by":"crossref","first-page":"790","DOI":"10.1038\/214790a0","volume":"214","author":"Lett","year":"1967","journal-title":"Nature"},{"key":"10.1016\/0003-2697(74)90017-7_BIB5","doi-asserted-by":"crossref","first-page":"395","DOI":"10.1016\/0022-2836(70)90053-7","volume":"48","author":"Lett","year":"1970","journal-title":"J. Mol. Biol"},{"key":"10.1016\/0003-2697(74)90017-7_BIB6","first-page":"128","volume":"54","author":"Freifelder","year":"1965"},{"key":"10.1016\/0003-2697(74)90017-7_BIB7","first-page":"1442","volume":"55","author":"Kaplan","year":"1966"},{"key":"10.1016\/0003-2697(74)90017-7_BIB8","doi-asserted-by":"crossref","first-page":"330","DOI":"10.1016\/S0006-3495(69)86390-3","volume":"9","author":"Veatch","year":"1969","journal-title":"Biophys. J"},{"key":"10.1016\/0003-2697(74)90017-7_BIB9","doi-asserted-by":"crossref","first-page":"38","DOI":"10.1016\/0005-2787(71)90805-7","volume":"247","author":"Dean","year":"1971","journal-title":"Biochim. Biophys. Acta"},{"key":"10.1016\/0003-2697(74)90017-7_BIB10","doi-asserted-by":"crossref","first-page":"309","DOI":"10.1016\/S0006-3495(63)86823-X","volume":"3","author":"Burgi","year":"1963","journal-title":"Biophys. J"},{"key":"10.1016\/0003-2697(74)90017-7_BIB11","doi-asserted-by":"crossref","first-page":"237","DOI":"10.1016\/S0006-3495(70)86296-8","volume":"10","author":"Elkind","year":"1970","journal-title":"Biophys. J"},{"key":"10.1016\/0003-2697(74)90017-7_BIB12","doi-asserted-by":"crossref","first-page":"271","DOI":"10.1016\/0003-2697(68)90102-4","volume":"25","author":"Leif","year":"1968","journal-title":"Anal. Biochem"},{"key":"10.1016\/0003-2697(74)90017-7_BIB13","first-page":"101","volume":"Vol. 2","author":"Noll","year":"1969"},{"key":"10.1016\/0003-2697(74)90017-7_BIB14","doi-asserted-by":"crossref","first-page":"130","DOI":"10.1016\/0003-2697(69)90225-5","volume":"27","author":"Noll","year":"1969","journal-title":"Anal. Biochem"},{"key":"10.1016\/0003-2697(74)90017-7_BIB15","doi-asserted-by":"crossref","first-page":"549","DOI":"10.1016\/S0022-2836(65)80312-6","volume":"12","author":"Eigner","year":"1965","journal-title":"J. Mol. Biol"},{"key":"10.1016\/0003-2697(74)90017-7_BIB16","first-page":"799","volume":"35","author":"Jose","year":"1966","journal-title":"Ann. Rev. Biochem"},{"key":"10.1016\/0003-2697(74)90017-7_BIB17","doi-asserted-by":"crossref","first-page":"395","DOI":"10.1016\/0022-2836(68)90394-X","volume":"38","author":"Kutter","year":"1968","journal-title":"J. Mol. Biol"},{"issue":"1","key":"10.1016\/0003-2697(74)90017-7_BIB18","doi-asserted-by":"crossref","first-page":"257","DOI":"10.1016\/0014-5793(70)80542-7","volume":"11","author":"Ritchie","year":"1970","journal-title":"FEBS Lett"},{"key":"10.1016\/0003-2697(74)90017-7_BIB19","doi-asserted-by":"crossref","first-page":"373","DOI":"10.1016\/S0022-2836(65)80064-X","volume":"11","author":"Studier","year":"1965","journal-title":"J. Mol. Biol"},{"key":"10.1016\/0003-2697(74)90017-7_BIB20","doi-asserted-by":"crossref","first-page":"567","DOI":"10.1016\/0022-2836(70)90127-0","volume":"54","author":"Freifelder","year":"1970","journal-title":"J. Mol. Biol"},{"key":"10.1016\/0003-2697(74)90017-7_BIB21","doi-asserted-by":"crossref","first-page":"152","DOI":"10.2307\/3573873","volume":"54","author":"Ehmann","year":"1973","journal-title":"Radiation Research"}],"container-title":["Analytical Biochemistry"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0003269774900177?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:0003269774900177?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,9,3]],"date-time":"2025-09-03T13:26:26Z","timestamp":1756905986000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/0003269774900177"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1974,5]]},"references-count":21,"journal-issue":{"issue":"1","published-print":{"date-parts":[[1974,5]]}},"alternative-id":["0003269774900177"],"URL":"https:\/\/doi.org\/10.1016\/0003-2697(74)90017-7","relation":{},"ISSN":["0003-2697"],"issn-type":[{"type":"print","value":"0003-2697"}],"subject":[],"published":{"date-parts":[[1974,5]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"A semiautomated system for the production and analysis of sucrose density gradients","name":"articletitle","label":"Article Title"},{"value":"Analytical Biochemistry","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/0003-2697(74)90017-7","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"converted-article","name":"content_type","label":"Content Type"},{"value":"Copyright \u00a9 1974 Published by Elsevier Inc.","name":"copyright","label":"Copyright"}]}}