[1]王周锋,刘卫国,王政.样品前处理对氮同位素组成测试的影响[J].水土保持研究,2008,15(06):250-251.
　WANG Zhou-feng,LIU Wei-guo,WANG Zheng.The Effects of Sample Pretreatment Methods on δ15N Testing[J].Research of Soil and Water Conservation,2008,15(06):250-251.
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样品前处理对氮同位素组成测试的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 15 期数: 2008年06期 页码: 250-251 栏目: 出版日期: 2008-12-20
Title:
The Effects of Sample Pretreatment Methods on δ15N Testing
作者:
王周锋1,2, 刘卫国1, 王政1
1. 中国科学院, 地球环境研究所, 黄土与第四纪地质国家重点实验室, 西安 710075;
2. 中国科学院研究生院, 北京 100039
Author(s):
WANG Zhou-feng1,2, LIU Wei-guo1, WANG Zheng1
1. State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS, Xi’an 710075, China;
2. Graduate University of CAS, Beijing 100039, China
关键词:
氮同位素组成; 氮含量; 杀青
Keywords:
δ15N; nitrogen content; high temperature desiccation
分类号:
Q946.1;O657.63
摘要:
氮同位素组成作为一个有效的示踪氮素循环的指标在生理学、生态学等领域的氮素研究中得到广泛应用。对比不同的研究我们发现，其样品的前处理方法不尽相同，可能会影响结果之间的有效对比。通过对比不同前处理方法对样品氮同位素组成和氮含量的影响，结果表明：样品用105℃杀青然后40℃烘干和直接用40℃烘干，氮同位素组成没有显著差异；氮含量的测定也表明，不同的处理方法没有对氮含量造成显著的差异。因此认为杀青或者不杀青不会对植物样品的氮同位素组成和氮含量测试造成显著的影响。
Abstract:
δ15N can be used to trace the nitrogen cycle in ecosystems,and thus are potential tools to investigate the nitrogen cycles in context of plant physiology and ecology.Recent studies have shown that the variation of pretreatment method may affect sample δ15N.In this study,we investigated the effects of different pretreatment method on sample δ15N and nitrogen content.The results show that no difference was found for sample δ15N and nitrogen content by pretreatment of high temperature desiccation under 105℃ and then drying under 40℃ or drying under 40℃ only.The results imply that no effect was found for sample pretreatment on sample δ15N and nitrogen content.

参考文献/References:

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相似文献/References:

[1]王庆改,白军红,张勇,等.湿地植物对土壤生态系统中氮含量变化的响应[J].水土保持研究,2007,14(04):164.
　WANG Qing-gai,BAI Jun-hong,ZHANG Yong,et al.Effects of Changes in Nitrogen Contents of Soil Ecosystem on Wetland Plants[J].Research of Soil and Water Conservation,2007,14(06):164.
[2]王周锋,刘卫国,王政.燃烧过程植物体氮含量和氮同位素组成变化[J].水土保持研究,2008,15(02):111.
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备注/Memo

收稿日期:2008-3-6;
基金项目:国家自然科学基金项目(40673012, 40523002和40121303)；中国科学院方向性项目(KZCX3-SW-139)；黄土与第四纪地质国家重点实验室开放基金资助项目(SKLLQG0613)资助
作者简介:王周锋（1979- ），男（汉族)，陕西岐山人，博士研究生，主要从事氮稳定同位素生物地球化学研究。E-mail：wangzf@ieecas.cn

更新日期/Last Update: 1900-01-01