| 植株叶片全钾简易快速测定方法研究 |
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| 引用本文： | 陈惠阳,王明祖.植株叶片全钾简易快速测定方法研究[J].仲恺农业技术学院学报,2000,13(3):39-42. |
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| 作者姓名： | 陈惠阳 王明祖 |
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| 作者单位： | 仲恺农业技术学院农学系!广东广州510225 |
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| 摘 要： | 分别用１ｍｏｌ／ＬＮＨ４ＯＡＣ、１．０８０ｍｏｌ／ＬＨ２ＳＯ４和Ｈ２Ｏ浸提植株叶片中的钾，然后用火焰光度法测定，测定结果与Ｈ２ＳＯ４－Ｈ２Ｏ２消煮法作比较结果表明：１ｍｏｌ＝Ｌ ＮＨ４ＯＡＣ、１．０８０ｍｏｌ／Ｌ Ｈ２ＳＯ４作浸提剂的测定结果与Ｈ２ＳＯ４－Ｈ２Ｏ２消煮法测定结果差异不显著；１５、３０和４５ｍｉｎ３种浸提时间的测定结果差异不显著；以稀Ｈ２Ｓ巡提剂，硫酸浓度分别为０．９００、０．９７２
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| 关 键 词： | 植株叶片 全钾 浸提 火焰光度法 测定 |
A simple and convenient method of determining the total potassium content in plant leaves |
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| CHEN Hui,yang,WANG Ming,zu.A simple and convenient method of determining the total potassium content in plant leaves[J].Journal of Zhongkai Agrotechnical College,2000,13(3):39-42. |
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| Authors: | CHEN Hui yang WANG Ming zu |
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| Abstract: | This experiment used 1 mol/L NH 4OAC,1.080 mol/L H 2SO 4 and H 2O in soaking and extracting the total potassium in leaves. The results of K content determination were compared with result by H 2SO 4 H 2O 2 method.The K contents determined by 1 mol/L NH 4OAC and 1.080 mol/L H 2SO 4 as extracting solutions were not significantly different from that by H 2SO 4 H 2O 2 method. Also, no differences were detected among treatments of 15,30 and 45 minutes of vibration. With dilute sulfuric acid as extracting solution, there were no differences in K content at concentrations of 0.900, 0.972 and 1.080 mol/L . Comparing with the traditional H 2SO 4 H 2O 2 method, the NH 4OAC and dilute sulfuric acid methods were simple and timesaving. |
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| Keywords: | plant leaf total potassium extraction photometry |
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