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- stable carbon nitrogen isotope 碳氮稳定同位素
- Yi X F, Li L X, Zhang X A, Zhao L, Li M C.Influence of artificial food on stable carbon and nitrogen isotope composition of Plateau Pikas. 易现峰;李来兴;张晓爱;赵亮;李明财.;人工食物对高原鼠兔稳定性碳和氮同位素组成的影响
- SEASONAL VARIABILITY OF STABLE CARBON AND NITROGEN ISOTOPE OF SUSPENDED PARTICULATE MATTER IN THE CHANGJIANG RIVER 长江悬浮颗粒物中稳定碳、氮同位素的季节分布
- Keywords stable carbon isotope,stable nitrogen isotope,ami no acid,Wudinghe river,the Yellow sea,the East China sea,ecosystem; 稳定碳同位素;稳定氮同位素;氨基酸;无定河;黄东海;生态系统;
- stable carbon and nitrogen isotopes 稳定碳氮同位素
- Keywords stable carbon isotope;stable nitrogen isotope;riverine system;pollutant source;bacterial process;trophic behavior; 稳定碳同位素;稳定氮同位素;河流系统;污染来源;微生物过程;营养行为;
- As an effective tracing method, stable nitrogen isotope is significant for studying the nitrogen cycling, especially for identifying source of nitrogen pollution. 稳定氮同位素作为一种有效的示踪手段，在研究氮循环特别是污染氮源的识别方面有重要意义。
- Diet composition hada large effect on stable carbon isotope composition of cattle tissues. 饲料对牛组织中碳同位素组成的影响远大于牛品种对它们的影响；
- In addition, carbon and nitrogen isotope and its ratio was important indicator in the riverine biogeochemistry study. 另外碳氮同位素及其比值在当前的河流有机质生物地球化学研究中仍起着非常重要的示踪作用。
- It is important to reflect and analyze the environment by distilling the information of tree ring stable carbon isotope. 通过对树木年轮中稳定碳同位素信息的提取反映环境变化具有重要的理论和实际意义。
- Then the stable carbon isotope composition of PAH series such as alkyl naphthalene and alkyl phenanthrene in crude oil samples of Tuha basin were determined on GC-IRMS. 并通过色谱-同位素比值质谱（GC-IRMS）技术对吐哈盆地原油中烷基萘和烷基菲等系列化合物的碳同位素组成进行测定。
- This paper reviewed the effect of environmental factors such as light, temperature, CO2, water, nutrient, salinity, air pollutants on stable carbon isotope composition in plants. 本文综述了光照、温度、水分、二氧化碳、矿质营养、盐分和大气污染物等环境因素对植物稳定碳同位素组成影响方面的研究进展。
- Based on the characteristics of saturated hydrocarbon biomarker and stable carbon isotope composition of individual n-alkanes, the sedimentary environments of this area were studied in detail. 从饱和烃生物标志化合物特徵、正构烷烃单体烃碳同位素分布特徵等方面入手，对该区的烃源岩的生源与沈积环境作了详细研究。
- Four main factors from the factor load matrix were defined , namely the carbon nitrogen factor, chlorine factor, combustion factor and the factor of Nitr/ Nic. 由化学成分的因子载荷矩阵得到4个主因子，即碳氮因子、氯因子、燃烧性因子和氮碱比因子。
- stable carbon isotope composition 碳同位素组成
- Nitrogen isotope geochemistry in minerals and rocks has not been fully studied,primarily because of very lower(<1000 ppm) concentration of nitrogen in the crustal rocks and the difficulty to extract nitrogen from silicate minerals and rocks. 氮同位素地球化学在固体地球科学研究很少被关注;主要是由于在地壳岩石中氮丰度很低(<1000 ppm)和氮难于从硅酸盐中提取出来。
- stable carbon isotope discrimination 稳定碳同位素辨别力
- stable carbon isotope techniques 碳稳定同位素技术
- The research also shows that there is not any change in the stable carbon isotopic composition in all these river systems caused by the quake. 本研究同时显示921地震并未对这些河川之稳定碳同位素组成造成影响。
- New Paleo-tracers and Tracer Calibrations: Nitrogen Isotopes, Silicon Isotopes, ... 17新的古示踪剂和示踪剂校正；氮同位素、矽同位素...
