Solid-phase CHNS analyser for plant, soil and sediments from aquatic and terrestrial ecosystems

我们需要一个内置自动进样器和高精度（0.00001g）分析天平的固相C， N和S分析仪（CHNS）。该分析仪将测量植物叶片、植物凋落物、土壤和沉积物中的C和N浓度，其发现与重要的陆地生态系统水平过程（分解、N矿化、一般营养循环）（Lindo, Henry）和用于参数化碎屑系统能量食物网模型的数据（Lindo）有关。它还将用于测量陆地土壤和水生沉积物中的总C、N、S和有机C，以了解环境污染物的命运和运输（Branfireun, Macfie）。CHNS系统还将用于浮游植物（Branfireun）和土壤生物（Lindo）的创新分析，这将为这些研究项目提供新的贡献。分析植物组织和凋落物、土壤和沉积物以及水生（浮游植物）和陆地（土壤生物）食物网的组成部分中的C、N和S，将使我们能够支持在加拿大生态系统中从生物分子尺度到生态系统尺度对生物多样性、微生物分解和汞转化的控制进行基础的、前沿的研究。

We are requesting a solid phase C, N, and S analyser (CHNS) with a built-in auto sampler and a high precision (0.00001g) analytical balance. The analyser will measure C and N concentrations in plant leaves, plant litter, soils, and sediments, with the findings linked to important terrestrial ecosystem level processes (decomposition, N mineralisation, general nutrient cycling)(Lindo, Henry), and data used to parameterize energetic food web models for detrital systems (Lindo). It will also be used to measure total C, N, and S and organic C in terrestrial soils and aquatic sediments in order to understand the fate and transport of environmental contaminants (Branfireun, Macfie). The CHNS system will also be used for innovative analysis of phytoplankton (Branfireun) and soil organisms (Lindo) that will provide novel contributions to these research programmes. Analysis of C, N, and S in plant tissues and litter, soils and sediments, and integral components of aquatic (phytoplankton) and terrestrial (soil organisms) food webs will allow us to support fundamental, cutting-edge research into controls on biodiversity, microbial decomposition, and Hg transformation spanning from biomolecular to ecosystem scales across Canadian ecosystems.