title: Analysis of δ15N values in mollusk shell organic matrix by elemental analysis/isotope ratio mass spectrometry without acidification: an evaluation and effects of long-term preservation.
authors.forename: Emma A A
authors.initials: EA
authors.lastname: Versteegh
authors.forename: David P
authors.initials: DP
authors.lastname: Gillikin
authors.forename: Frank
authors.initials: F
authors.lastname: Dehairs
mesh_terms: D000083:Acetanilides / Q000737:chemistry; D000818:Animals; D002119:Calcium Carbonate / Q000737:chemistry; D000431:Ethanol; D005557:Formaldehyde; D007553:Isotope Labeling; D013058:Mass Spectrometry / Q000379:methods*; D008974:Mollusca / Q000737:chemistry*; D009587:Nitrogen Isotopes / Q000032:analysis* / Q000737:chemistry; D011309:Preservation, Biological
chemical_list: D000083:Acetanilides; D009587:Nitrogen Isotopes; D005557:Formaldehyde; D000431:Ethanol; D002119:Calcium Carbonate; C508827:acetanilide