| 高粱中氮同位素丰度的测定和应用 |
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| 引用本文： | 钟其顶,武竹英,仇凯,王道兵,程涛,熊正河,王明,尹大宽,李令.高粱中氮同位素丰度的测定和应用[J].质谱学报,2014,35(4):367-371. |
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| 作者姓名： | 钟其顶 武竹英 仇凯 王道兵 程涛 熊正河 王明 尹大宽 李令 |
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| 作者单位： | 1.中国食品发酵工业研究院，北京100015；2.全国食品发酵标准化中心，北京100015；3.国家固态酿造工程技术研究中心，四川 泸州646000 |
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| 基金项目： | 国家自然科学基金(31101333);科技部国际合作项目(2011DFA33270);科技部支撑计划项目(2012BAK17B11)资助 |
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| 摘 要： | 为研究不同肥料对高粱中氮稳定同位素丰度的影响，采用稳定同位素质谱法测定高粱中氮同位素比值，并对有机和常规两种农业体系种植的高粱果实进行同位素分析。结果表明：高粱δ15N值与高粱生长过程中所施的肥料密切相关；施有机肥的高粱δ15N值普遍高于施化肥的高粱，因此δ15N值可作为鉴别有机高粱和常规高粱的重要参考要素。该方法可对有机高粱酿造的白酒和其他高粱酿造的白酒进行鉴别和区分，以维护企业和消费者的合法权益。
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| 关 键 词： | 高粱 稳定同位素质谱 氮同位素丰度 |
Determination and Application of 15N Abundance in Sorghum |
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| ZHONG Qi-ding,WU Zhu-ying,QIU Kai,WANG Dao-bing,CHENG Tao,XIONG Zheng-he,WANG Ming,YIN Da-kuan,LI Ling.Determination and Application of 15N Abundance in Sorghum[J].Journal of Chinese Mass Spectrometry Society,2014,35(4):367-371. |
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| Authors: | ZHONG Qi-ding WU Zhu-ying QIU Kai WANG Dao-bing CHENG Tao XIONG Zheng-he WANG Ming YIN Da-kuan LI Ling |
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| Affiliation: | 1.China National Research Institute of Food and Fermentation Industries, Beijing 100051, China；2.National Standardization Centre of Food & Fermentation Industry, Beijing 100015, China；3. National Engineering Research Center of Solid state Brewing，Luzhou 646000, China |
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| Abstract: | In order to investigate the effects of different kinds of fertilizer on nitrogen isotope composition of sorghum, the plants were cultivated according to organic and conventional agriculture. The method of determining nitrogen stable isotope ratio (δ15N) of sorghum was established using stable isotope ratio mass spectrometer (IRMS). Nitrogen isotope ratios（δ15N values）of sorghum fruits were determined. The result shows that the δ15N values of sorghum are closely related with the kinds of fertilizer applied during the plant’s growth time. The δ15N values of organic sorghum are often higher than those of conventional ones. The δ15N values of sorghum can provide a reference for tracking kinds of fertilization applied on sorghum plants. |
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| Keywords: | sorghum stable isotope ratio mass spectrometer (IRMS) 15N abundance |
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