Forums | HES 健康与环境科学

13 October 2023, 4:32 PM

Speaker: Yaqin Wang

Date: 2023-10-18

Time: 14:00-14:30 pm

Room: ES420

Online link:

https://meeting.tencent.com/dm/cHLE02oBtSPP

Meeting ID: 664-4757-0489

Title: Hidden organic phosphorus in sediment

Abstract:

Phosphorus (P) is often the limiting factor of primary production in various ecosystems. This is attributed by the nature of poor solubility of inorganic P in soil conditions. However, less is known about the role of organic P on global biogeochemistry as it represents a larger environmental reservoir over the inorganic P. With the methodology developments on Liquid Chromatography-Inductively Coupled Plasma Mass Spectrometry, we have observed a significant amount of some dissolved P that may represent the organic speciation but in unclear biogeochemical roles. Here, we would use various methods to extract and concentrate unknown organic P species from soil matrix for speciation identification and quantification. Findings on the biogeochemical roles of organic P would be of great environmental significance.