| 药品选择及径流水样存放时间对总氮测定的影响 |
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| 引用本文： | 张丽君,罗旭辉,陈恩.药品选择及径流水样存放时间对总氮测定的影响[J].福建农业科技,2016(11):47-50. |
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| 作者姓名： | 张丽君 罗旭辉 陈恩 |
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| 作者单位： | 福建省农业科学院农业生态研究所 350013 |
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| 基金项目： | 福建省省属公益类科研院所基本科研专项(2017R1016-3) |
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| 摘 要： | 研究了国药集团、优耐德、Fluka的过硫酸钾药品以及水样存放时间对总氮含量测定的影响,结果表明:未经过提纯的3种药品均无法达到试验的要求,使用提纯后的Fluka过硫酸钾药品可达到总氮测定的要求;在-20℃环境下保持4个月径流水样总氮浓度无显著变化.
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| 关 键 词： | 总氮 过硫酸钾 存放时间 |
Effects of drug selection and storage time of runoff-wateron total nitrogen determination |
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| Abstract: | Effects of potassium persulfate from Guoyao group, Younaide and Fluka, and storage time of runoff-water on total nitrogen determination were studied.The results showed that the 3 drugs without purification were unable to reach the requirements of total nitrogen determination but purified potassium persulfate of Fluka could.And the total nitrogen concentrations of runoff water keeping 4 month in-20℃ had no significantly changed. |
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| Keywords: | Total nitrogen potassium persulfate storage time |
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