| 养殖水体中不同浓度氮盐的保存差异研究 |
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| 引用本文： | 沈勤,单媛媛,谢荣林,吕伟清,孙伟杰.养殖水体中不同浓度氮盐的保存差异研究[J].河北渔业,2009(4). |
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| 作者姓名： | 沈勤 单媛媛 谢荣林 吕伟清 孙伟杰 |
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| 作者单位： | 1. 桐乡市水产工作站,浙江,桐乡,314500
2. 桐乡市环境保护监测站,浙江,桐乡,315211 |
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| 摘 要： | 用6种保存方法对不同浓度水样中3种氮盐(NH3-N、NO2-N、NO3-N)参数的稳定性进行了7 d的保存效果比较研究。结果认为:(1)NH3-N:以5‰氯仿4℃条件为最佳保存方法,保存时间宜控制在5 d内;(2)NO2-N:以5‰甲醛4℃为最佳保存方法,保存时间宜控制在7 d内;(3)NO3-N:以5‰氯仿4℃条件为最佳保存方法,保存时间宜控制在2 d内;(4)NO3-N的保存稳定性相对较差,受NH3-N初始浓度及降解速度影响较大。
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| 关 键 词： | 氮盐 浓度 保存 |
Investigations of the Preservation Method of Nitrogen about Different Density in Aquiculture Water |
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| Shen Qin,Shan Yanyan,Xie Ronglin,Lü Weiqing,Sun Weijie.Investigations of the Preservation Method of Nitrogen about Different Density in Aquiculture Water[J].Hebei Fisheries,2009(4). |
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| Authors: | Shen Qin Shan Yanyan Xie Ronglin Lü Weiqing Sun Weijie |
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| Institution: | 1.Aquiculture Work Station;Tongxiang 314500;China;2.Ministry of Environmental Protection Station;Tongxiang 314500 |
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| Abstract: | Parameters of nitrogen(NH3-N、NO2-N、NO3-N) and stability of nitrogen in aquiculture water in seven days were studied to establish a suitable one from six preservation methods.As the result,the preservation contributions were different.(1) NH3-N: the optimal condition was of 5‰ formaldehyde,four centigrade and the retention time controls suitably in five days;(2) NO2-N: the optimal condition was of 5‰ formaldehyde,four centigrade and the retention time controls suitably in seven days;(3)NO3-N: the optimal condition was of 5% formaldehyde,four centigrade and the retention time controls suitably in two days;(4) The preserved stability NO3-N was relatively bad,the effect was bigger by initial density and degradation. |
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| Keywords: | nitrogen density preservatio |
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