| 全自动凯氏定氮仪在农作物粗蛋白检测中的应用 |
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| 引用本文： | 田翔,王海岗,曹晓宁,王君杰,乔治军.全自动凯氏定氮仪在农作物粗蛋白检测中的应用[J].山西农业科学,2014(3):233-235. |
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| 作者姓名： | 田翔 王海岗 曹晓宁 王君杰 乔治军 |
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| 作者单位： | 山西省农业科学院农作物品种资源研究所,农业部黄土高原作物基因与种质创制重点实验室山西太原030031 |
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| 基金项目： | 农业部国家谷子糜子产业技术体系专项（CARS-07-12.5） |
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| 摘 要： | 应用改进后的消化方法和全自动凯氏定氮仪,结合现行粮油作物粗蛋白质含量测定国标,经测定仪器直接蒸馏(NH4)2SO4,氮回收率为99.97%~100.99%,全麦粉粗蛋白标准物质测定值在标准规定范围内,8次测定值的相对标准偏差为0.39%,仪器精密度和准确度达到试验要求。该测定方法具有快速、准确等优点。
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| 关 键 词： | 凯氏定氮仪 蛋白质 农作物 |
Determination of the Crop Protein by Kjeltec Automatic Azotometer |
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| TIAN Xiang,WANG Hai-gang,CAO Xiao-ning,WANG Jun-jie,QIAO Zhi-jun.Determination of the Crop Protein by Kjeltec Automatic Azotometer[J].Journal of Shanxi Agricultural Sciences,2014(3):233-235. |
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| Authors: | TIAN Xiang WANG Hai-gang CAO Xiao-ning WANG Jun-jie QIAO Zhi-jun |
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| Institution: | (Key Laboratory of Crop Gene Resources ＆ Germplasm Enhancement on Loess Plateau, Ministry of Agriculture, Institute of Crop Germplasm Resources, Shanxi Academy of Agricultural Sciences, Taiyuan 030031, China) |
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| Abstract: | In this paper,the improved methods and automatic Kjeldahl analyzer were applied to measure the crude protein content of crops and the results of （NH4）2SO4 were nitrogen recovery 99.97% ～ 100.99%,whole wheat flour crude protein values measured in the standard reference material requirements within the range of 8 measured values RSD is 0.39%,and instrument precision and accuracy achieved in the experiments.It is concluded that the method is fast and accurate. |
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| Keywords: | automatic Kjeldahl crude protein crops |
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