{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,16]],"date-time":"2026-10-16T20:03:19Z","timestamp":1792180999321,"version":"4.4.0"},"reference-count":21,"publisher":"Wiley","issue":"15","license":[{"start":{"date-parts":[[2024,5,23]],"date-time":"2024-05-23T00:00:00Z","timestamp":1716422400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100012166","name":"National Basic Research Program of China","doi-asserted-by":"publisher","award":["2022YFD1300702"],"award-info":[{"award-number":["2022YFD1300702"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100012166","name":"National Basic Research Program of China","doi-asserted-by":"publisher","award":["2022YFD1300702"],"award-info":[{"award-number":["2022YFD1300702"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["analyticalsciencejournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Rapid Comm Mass Spectrometry"],"published-print":{"date-parts":[[2024,8,15]]},"abstract":"<jats:sec>\n                    <jats:title>Rationale<\/jats:title>\n                    <jats:p>Succinic acid and lactic acid have been associated with diarrhea in weaned piglets. The level of succinic acid and lactic acid in serum, meat, and intestinal contents is important to elucidate the mechanism of diarrhea in weaned piglets.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      A facile method was developed for the quantification of succinic acid and lactic acid in pigs' serum, intestinal contents, and meat using ultrahigh\u2010performance liquid chromatography\u2013tandem mass spectrometry (UHPLC\/MS\/MS). The serum samples underwent protein precipitation with methanol. The meat and intestinal contents were freeze\u2010dried and homogenized using a tissue grinding apparatus. Methanol\u2013water mixture (80:20, v\/v) was used for homogenizing the meat, while water was used for homogenizing the intestinal contents. An additional step of protein precipitation with acetonitrile was required for the intestinal contents. The resulting solution was diluted with water before being analyzed by UHPLC\/MS\/MS. Separation of succinic acid and lactic acid could be achieved within 3\u00a0min using a Kinetic XB\u2010C\n                      <jats:sub>18<\/jats:sub>\n                      column.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The coefficients of variation for peak areas of succinic acid and lactic acid were less than 5.0%. The established method demonstrated good linearity as indicated by correlation coefficients exceeding 0.996. Additionally, satisfactory recoveries ranging from 88.58% to 108.8% were obtained. The detection limits (\n                      <jats:italic>R<\/jats:italic>\n                      <jats:sub>S\/N<\/jats:sub>\n                      \u2009=\u20093) for succinic acid and lactic acid were determined to be 0.75\u2009ng\/mL and 0.02\u2009\u03bcg\/mL, respectively.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>This method exhibited high sensitivity, simplicity in operation, and small sample weight, making it suitable for quantitative determination of succinic acid and lactic acid in pigs' serum, intestinal contents, and meat. The method developed will provide valuable technical support in studying the metabolic mechanisms of succinic acid and lactic acid in pigs.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/rcm.9769","type":"journal-article","created":{"date-parts":[[2024,5,23]],"date-time":"2024-05-23T22:54:46Z","timestamp":1716504886000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Determination of succinic acid and lactic acid in pigs' serum, intestinal contents, and meat by ultrahigh\u2010performance liquid chromatography\u2013tandem mass spectrometry"],"prefix":"10.1002","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0009-0006-6351-1029","authenticated-orcid":false,"given":"Liwei","family":"Xu","sequence":"first","affiliation":[{"name":"Key Laboratory of Agro\u2010Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture Chinese Academy of Sciences  Changsha 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