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上游水库水体中氨氮、亚硝酸盐氮、硝酸盐氮、总氮的测定和关系探究

赵文斌

赵文斌. 上游水库水体中氨氮、亚硝酸盐氮、硝酸盐氮、总氮的测定和关系探究[J]. 分析测试技术与仪器, 2022, 28(2): 222-227. doi: 10.16495/j.1006-3757.2022.02.017
引用本文: 赵文斌. 上游水库水体中氨氮、亚硝酸盐氮、硝酸盐氮、总氮的测定和关系探究[J]. 分析测试技术与仪器, 2022, 28(2): 222-227. doi: 10.16495/j.1006-3757.2022.02.017
ZHAO Wen-bin. Determination and Relationship of Ammonia Nitrogen, Nitrite Nitrogen, Nitrate Nitrogen and Total Nitrogen in Upstream Reservoir Water[J]. Analysis and Testing Technology and Instruments, 2022, 28(2): 222-227. doi: 10.16495/j.1006-3757.2022.02.017
Citation: ZHAO Wen-bin. Determination and Relationship of Ammonia Nitrogen, Nitrite Nitrogen, Nitrate Nitrogen and Total Nitrogen in Upstream Reservoir Water[J]. Analysis and Testing Technology and Instruments, 2022, 28(2): 222-227. doi: 10.16495/j.1006-3757.2022.02.017

上游水库水体中氨氮、亚硝酸盐氮、硝酸盐氮、总氮的测定和关系探究

doi: 10.16495/j.1006-3757.2022.02.017
详细信息
    作者简介:

    赵文斌(1984-)男, 本科, 工程师, 主要从事水环境检测和评价、地下水监测工作, Tel: 15003004758, E-mail: 1443931126@qq.com

  • 中图分类号: O657.32

Determination and Relationship of Ammonia Nitrogen, Nitrite Nitrogen, Nitrate Nitrogen and Total Nitrogen in Upstream Reservoir Water

  • 摘要: 采用紫外分光光度法测定上游水库固定监测点位近两年采集样品的总氮、硝酸盐氮、氨氮、亚硝酸盐氮含量. 对测试结果进行分析比较, 探讨了上游水库水中总氮、硝酸盐氮、氨氮、亚硝酸盐氮的关系, 从而为上游水库水质数据分析和综合评价提供一定参考.
  • 图  1  氨氮标准曲线及计算公式

    Figure  1.  Standard curve and calculation formula of ammonia nitrogen

    图  2  亚硝酸盐氮标准曲线及计算公式

    Figure  2.  Standard curve and calculation formula of nitrite nitrogen

    图  3  硝酸盐氮标准曲线及计算公式

    Figure  3.  Standard curve and calculation formula of nitrate nitrogen

    图  4  总氮标准曲线及计算公式

    Figure  4.  Standard curve and calculation formula of total nitrogen

    表  1  质控样品统计

    Table  1.   Statistics of quality control samples

    分析项目 标准物质批号 真值范围 有效期 测定值1/(mg/L) 测定值2/(mg/L) 平均值/(mg/L) 相对偏差/%
    氨氮 170509 (0.127±0.006) mg/L 2022.09 0.131 0.125 0.124 2.34
    亚硝酸盐氮 190645 (89.2±4.5) μg/L 2022.11 0.091 0.087 0.089 2.13
    硝酸盐氮 200711 (10.8±0.4) mg/L 2023.06 10.9 10.5 10.7 1.87
    总氮 190221 (2.07±0.11) mg/L 2022.09 2.07 1.97 2.02 2.48
    下载: 导出CSV

    表  2  不同批次和同一批次超纯水放置3 d后测得吸光度空白对比

    Table  2.   Comparison of absorbance blank between different batches and same batch of ultra-pure water after 3 days

    波长/nm 1# 1#-3d 2# 2#-3d 3# 3#-3d 4# 4#-3d
    220 0.000 0.018 0.004 0.016 0.001 0.012 0.002 0.010
    275 0.000 0.002 0.000 -0.001 0.000 0.003 0.000 -0.002
    420 0.024 0.026 0.022 0.023 0.021 0.023 0.022 0.024
    540 0.003 0.004 0.002 0.004 0.004 0.005 0.003 0.004
    下载: 导出CSV

    表  3  2020年上游水库水中总氮、硝酸盐氮、氨氮、亚硝酸盐氮含量分析

    Table  3.   Analysis of total nitrogen, nitrate nitrogen, ammonia nitrogen and nitrite nitrogen in upstream reservoir water in 2020

    编号 采样日期 氨氮质量浓度/(mg/L) 占总氮比/% 亚硝酸盐氮质量浓度/(mg/L) 占总氮比/% 硝酸盐氮质量浓度/(mg/L) 占总氮比/% 总氮质量浓度/(mg/L)
    1 2020-03-16 0.140 21.2 0.006 0.9 0.41 62.1 0.66
    2 2020-04-09 0.170 35.4 0.006 1.3 0.28 58.3 0.48
    3 2020-06-04 0.140 15.2 0.007 0.8 0.62 67.4 0.92
    4 2020-09-09 0.080 15.4 0.008 1.5 0.42 80.8 0.52
    5 2020-10-14 0.060 9.1 0.004 0.6 0.60 90.9 0.66
    6 2020-11-10 0.122 15.8 0.013 1.7 0.51 66.2 0.77
    下载: 导出CSV

    表  4  2021年上游水库水中总氮、硝酸盐氮、氨氮、亚硝酸盐氮含量分析

    Table  4.   Analysis of total nitrogen, nitrate nitrogen, ammonia nitrogen and nitrate nitrogen in upstream reservoir water in 2021

    编号 采样日期 氨氮质量浓度/(mg/L) 占总氮比/% 亚硝酸盐氮质量浓度/(mg/L) 占总氮比/% 硝酸盐氮质量浓度/(mg/L) 占总氮比/% 总氮质量浓度/(mg/L)
    1 2021-03-08 0.040 4.2 0.014 1.5 0.78 81.3 0.96
    2 2021-04-06 0.030 12.0 0.011 4.4 0.18 72.0 0.25
    3 2021-06-03 0.040 6.3 0.008 1.3 0.26 40.6 0.64
    4 2021-09-04 0.030 5.3 0.006 1.1 0.42 73.7 0.57
    5 2021-10-09 0.030 6.5 0.003 0.7 0.34 73.9 0.46
    6 2021-11-08 0.140 18.7 0.015 2.0 0.56 74.7 0.75
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-02-17
  • 修回日期:  2022-05-17
  • 网络出版日期:  2022-07-07
  • 刊出日期:  2022-06-30

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