{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T19:58:13Z","timestamp":1784750293041,"version":"3.55.0"},"reference-count":37,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2016,11,28]],"date-time":"2016-11-28T00:00:00Z","timestamp":1480291200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Rapid Comm Mass Spectrometry"],"published-print":{"date-parts":[[2017,1,15]]},"abstract":"<jats:sec>\n                    <jats:title>Rationale<\/jats:title>\n                    <jats:p>\n                      The recent development of compound\u2010specific online chlorine isotope analysis (\n                      <jats:sup>37<\/jats:sup>\n                      Cl\u2010CSIA) methods has fostered dual chlorine\u2013carbon isotope studies to gain better insights into sources and environmental transformation reactions of chlorinated ethenes. One\u2010point and two\u2010point calibration schemes are currently used to convert raw data to the international \u03b4\n                      <jats:sup>37<\/jats:sup>\n                      Cl\n                      <jats:sub>SMOC<\/jats:sub>\n                      scale, but a critical evaluation of best practices to arrive at reliable \u03b4\n                      <jats:sup>37<\/jats:sup>\n                      Cl\n                      <jats:sub>SMOC<\/jats:sub>\n                      signatures and enrichment factors was missing and is presented here.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      Aqueous solutions of neat perchloroethylene and trichloroethylene (TCE) and aqueous samples from a TCE biodegradation experiment with pure cultures of\n                      <jats:italic>Desulfitobacterium hafniense<\/jats:italic>\n                      Y51 were analysed for their chlorine isotope ratios using GC\/qMS and GC\/IRMS. The \u03b4\n                      <jats:sup>37<\/jats:sup>\n                      Cl\n                      <jats:sub>SMOC<\/jats:sub>\n                      values were obtained using one\u2010point and two\u2010point calibration schemes. Chlorine isotope enrichment factors,\n                      <jats:italic>\u03b5<\/jats:italic>\n                      <jats:sub>Cl<\/jats:sub>\n                      , were calculated using both approaches and the corresponding bias of \u03b4\n                      <jats:sup>37<\/jats:sup>\n                      Cl\n                      <jats:sub>SMOC<\/jats:sub>\n                      values introduced by the different types of calibration was determined.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Different calibration methods resulted in significant differences (up to 30%) in both \u03b4\n                      <jats:sup>37<\/jats:sup>\n                      Cl signatures and\n                      <jats:italic>\u03b5<\/jats:italic>\n                      <jats:sub>Cl<\/jats:sub>\n                      values.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>\n                      Our results demonstrate that a two\u2010point calibration together with comprehensive information on reference materials is indispensable and should become standard practice for reliable\n                      <jats:sup>37<\/jats:sup>\n                      Cl\u2010CSIA of organic compounds. Copyright \u00a9 2016 John Wiley &amp; Sons, Ltd.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/rcm.7752","type":"journal-article","created":{"date-parts":[[2016,10,7]],"date-time":"2016-10-07T04:37:15Z","timestamp":1475815035000},"page":"68-74","source":"Crossref","is-referenced-by-count":11,"title":["Calibration bias of experimentally determined chlorine isotope enrichment factors: the need for a two\u2010point calibration in compound\u2010specific chlorine isotope analysis"],"prefix":"10.1002","volume":"31","author":[{"given":"Karin A.","family":"Ebert","sequence":"first","affiliation":[{"name":"Center for Applied Geoscience University of T\u00fcbingen  H\u00f6lderlinstr. 12 72074 T\u00fcbingen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christine","family":"Laskov","sequence":"additional","affiliation":[{"name":"Center for Applied Geoscience University of T\u00fcbingen  H\u00f6lderlinstr. 12 72074 T\u00fcbingen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martin","family":"Elsner","sequence":"additional","affiliation":[{"name":"Institute of Groundwater Ecology Helmholtz Zentrum M\u00fcnchen  Ingolst\u00e4dter Landstr. 1 85764 Neuherberg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9309-8523","authenticated-orcid":false,"given":"Stefan B.","family":"Haderlein","sequence":"additional","affiliation":[{"name":"Center for Applied Geoscience University of T\u00fcbingen  H\u00f6lderlinstr. 12 72074 T\u00fcbingen Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2016,11,28]]},"reference":[{"key":"e_1_2_5_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jconhyd.2012.03.001"},{"key":"e_1_2_5_3_1","doi-asserted-by":"publisher","DOI":"10.1021\/es800356h"},{"key":"e_1_2_5_4_1","doi-asserted-by":"publisher","DOI":"10.1128\/AEM.67.10.4842-4849.2001"},{"key":"e_1_2_5_5_1","doi-asserted-by":"publisher","DOI":"10.1021\/es505784a"},{"key":"e_1_2_5_6_1","doi-asserted-by":"publisher","DOI":"10.1021\/ac5044169"},{"key":"e_1_2_5_7_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00216-011-5683-y"},{"key":"e_1_2_5_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.trac.2010.10.012"},{"key":"e_1_2_5_9_1","doi-asserted-by":"publisher","DOI":"10.1021\/es404837g"},{"key":"e_1_2_5_10_1","doi-asserted-by":"publisher","DOI":"10.1021\/es4054016"},{"key":"e_1_2_5_11_1","doi-asserted-by":"publisher","DOI":"10.1080\/10256019808234057"},{"key":"e_1_2_5_12_1","doi-asserted-by":"publisher","DOI":"10.1021\/ac961096b"},{"key":"e_1_2_5_13_1","doi-asserted-by":"publisher","DOI":"10.1021\/ac0354802"},{"key":"e_1_2_5_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apgeochem.2006.02.006"},{"key":"e_1_2_5_15_1","doi-asserted-by":"publisher","DOI":"10.1002\/rcm.3170"},{"key":"e_1_2_5_16_1","doi-asserted-by":"publisher","DOI":"10.1021\/ac200516c"},{"key":"e_1_2_5_17_1","volume-title":"A New Method for Compound\u2010Specific Stable Chlorine Isotope Analysis: Basics and Applications","author":"Sakaguchi\u2010S\u00f6der K.","year":"2010"},{"key":"e_1_2_5_18_1","doi-asserted-by":"publisher","DOI":"10.1021\/ac902445f"},{"key":"e_1_2_5_19_1","doi-asserted-by":"publisher","DOI":"10.1002\/rcm.7407"},{"key":"e_1_2_5_20_1","doi-asserted-by":"publisher","DOI":"10.1021\/es200988d"},{"key":"e_1_2_5_21_1","doi-asserted-by":"publisher","DOI":"10.1021\/es200749d"},{"key":"e_1_2_5_22_1","doi-asserted-by":"publisher","DOI":"10.1021\/es305236y"},{"key":"e_1_2_5_23_1","doi-asserted-by":"publisher","DOI":"10.1021\/es801759k"},{"key":"e_1_2_5_24_1","doi-asserted-by":"publisher","DOI":"10.1021\/es400107n"},{"key":"e_1_2_5_25_1","doi-asserted-by":"publisher","DOI":"10.1021\/es400463p"},{"key":"e_1_2_5_26_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apgeochem.2012.08.025"},{"key":"e_1_2_5_27_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.est.5b02918"},{"key":"e_1_2_5_28_1","doi-asserted-by":"publisher","DOI":"10.1021\/es500822d"},{"key":"e_1_2_5_29_1","doi-asserted-by":"publisher","DOI":"10.1021\/es503306g"},{"key":"e_1_2_5_30_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jconhyd.2010.09.009"},{"key":"e_1_2_5_31_1","doi-asserted-by":"publisher","DOI":"10.1021\/es3016843"},{"key":"e_1_2_5_32_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1745-6592.2012.01403.x"},{"key":"e_1_2_5_33_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.scitotenv.2013.12.059"},{"key":"e_1_2_5_34_1","doi-asserted-by":"publisher","DOI":"10.3390\/molecules19056450"},{"key":"e_1_2_5_35_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.teac.2016.04.001"},{"key":"e_1_2_5_36_1","doi-asserted-by":"publisher","DOI":"10.1002\/rcm.5129"},{"key":"e_1_2_5_37_1","doi-asserted-by":"publisher","DOI":"10.1021\/ac702543y"},{"key":"e_1_2_5_38_1","doi-asserted-by":"publisher","DOI":"10.1021\/es9006433"}],"container-title":["Rapid Communications in Mass Spectrometry"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Frcm.7752","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Frcm.7752","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/analyticalsciencejournals.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/rcm.7752","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,26]],"date-time":"2025-10-26T13:31:56Z","timestamp":1761485516000},"score":1,"resource":{"primary":{"URL":"https:\/\/analyticalsciencejournals.onlinelibrary.wiley.com\/doi\/10.1002\/rcm.7752"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2016,11,28]]},"references-count":37,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2017,1,15]]}},"alternative-id":["10.1002\/rcm.7752"],"URL":"https:\/\/doi.org\/10.1002\/rcm.7752","archive":["Portico"],"relation":{},"ISSN":["0951-4198","1097-0231"],"issn-type":[{"value":"0951-4198","type":"print"},{"value":"1097-0231","type":"electronic"}],"subject":[],"published":{"date-parts":[[2016,11,28]]}}}