Sample acidification has a predictable effect on isotopic ratios of particulate organic matter along the Chilean coast.
Carmen Barrios-GuzmánMaritza SepúlvedaFelipe DocmacPatricia ZarateHernán ReyesChris HarrodPublished in: Rapid communications in mass spectrometry : RCM (2019)
The differences between δ13 C and δ15 N values in acidified and non-acidified samples are linear and predictable. This implies that the nature of the POM and its possible alteration during the acid treatment are important factors that support the reliable determination of the values of δ13 C and δ15 N of POM.