Solid phase extraction (SPE) columns with an aminopropyl bonded stationary phase are commonly used to isolate fatty acids. We tested SPE columns with tubes composed of three different materials, high density polyethylene (HDPE), HDPE coated with a fluorinated polymer similar to Teflon Ò (FP-HDPE) and glass, to assess the effects of these products on the purity of fatty acid extracts derived from the different SPE columns. Products made of HDPE released significant levels of short chain (mainly C 16 and C 18 ) fatty acids during elution, while glass and FP-HDPE yielded little contamination. These results urge caution in the use of HDPE products during analysis of short chain fatty acids, especially in applications involving the use of stable isotope ratio values that could be significantly altered by small amounts of contaminants.

James M. Russell

Josef P. Werne

Organic Geochemistry

有机地球化学是发表同行评审研究的唯一专用媒体，这些研究涉及有机化合物在其中发挥主要作用的所有地球化学阶段。编辑们欢迎涵盖广泛的地球科学学科的投稿，这些学科广泛以有机化学（包括分子和同位素地球化学）为基础，涉及地质学、生物地球化学、环境地球化学、化学海洋学和水文学。期刊的范围包括涉及石油的研究（包括天然气）、煤、水环境中的有机物和最近的沉积物、富含有机物的岩石和土壤以及有机物在元素地球化学循环中的作用。沉积学、古生物学和有机岩相学研究也将考虑出版，前提是它们是地球化学方向的。论文涵盖有机地球化学的所有研究活动，包括综合评论文章、技术交流、讨论/回复信函和简短的技术说明。由三位主编和一名副主编组织的同行评审由来自学术界、政府和工业界的知名、受人尊敬的科学家进行。该杂志还发表书籍评论、重要会议和会议的公告以及有机地球化学界直接感兴趣的其他事项。

Organic Geochemistry is the only dedicated journal for publishing peer-reviewed research that involves the role of organic compounds in all geochemical stages. The editors welcome submissions covering a wide range of Earth science disciplines, which are broadly based on organic chemistry (including molecular and isotopic geochemistry) and encompass geology, biogeochemistry, environmental geochemistry, chemical oceanography, and hydrology. The journal's scope includes research related to petroleum (including natural gas), coal, organic matter in water environments, recent sediments, organic-rich rocks and soils, and the role of organic matter in elemental geochemical cycles. Studies in sedimentology, paleontology, and organic petrology will also be considered for publication, provided they have a geochemical focus. The papers cover all research activities in organic geochemistry, including comprehensive review articles, technical communications, discussion/reply letters, and brief technical notes. Peer review is organized by three editors and one associate editor, conducted by renowned scientists from academia, government, and industry. The journal also publishes book reviews, announcements of important conferences, and other matters of direct interest to the organic geochemistry community.

有机地球化学是唯一专注于发表同行评审研究的期刊，涉及有机化合物在各个地球化学阶段的作用。编辑们欢迎涵盖广泛地球科学学科的投稿，这些学科以有机化学（包括分子和同位素地球化学）为基础，涉及地质学、生物地球化学、环境地球化学、化学海洋学和水文学。期刊的范围包括与石油（包括天然气）、煤、水环境中的有机物、最近的沉积物、富含有机物的岩石和土壤以及有机物在元素地球化学循环中的作用相关的研究。沉积学、古生物学和有机岩相学的研究也会被考虑出版，前提是它们具有地球化学的方向。论文涵盖有机地球化学的所有研究活动，包括综合评论文章、技术交流、讨论/回复信函和简短的技术说明。由三位主编和一名副主编组织的同行评审由来自学术界、政府和工业界的知名科学家进行。该期刊还发表书籍评论、重要会议的公告以及有机地球化学领域其他相关事项。

Category	Quartile
地球科学	3
地球科学, 地球化学与地球物理	3

The use of solid phase extraction columns in fatty acid purification

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Journal Info

Category	Quartile
GEOCHEMISTRY & GEOPHYSICS	2