14N NMR作为一种氮含量定量分析的方法及其在检测几种腐殖酸样品中硝酸根离子含量上的应用
张永洪, 毛希安
NITROGEN-14 NUCLEAR MAGNETIC RESONANCE AS A METHOD OF QUANTITATIVE NITROGEN ANALYSIS AND ITS APPLICATION TO DETERMINATION OF NITRATE IN SEVERAL HUMIC ACIDS
ZHANG Yong-hong, MAO Xian
波谱学杂志
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2000, (6): 449
-454
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