中国地质学会岩矿测试技术专业委员会、国家地质实验测试中心主办

中国近海沉积物氮和有机碳标准物质的研制

白亚之, 朱爱美, 崔菁菁, 施美娟, 高晶晶, 张俊. 中国近海沉积物氮和有机碳标准物质的研制[J]. 岩矿测试, 2014, 33(1): 74-80.
引用本文: 白亚之, 朱爱美, 崔菁菁, 施美娟, 高晶晶, 张俊. 中国近海沉积物氮和有机碳标准物质的研制[J]. 岩矿测试, 2014, 33(1): 74-80.
Ya-zhi BAI, Ai-mei ZHU, Jing-jing CUI, Mei-juan SHI, Jing-jing GAO, Jun ZHANG. Development of Nitrogen and Organic Carbon Reference Materials for China Offshore Marine Sediments[J]. Rock and Mineral Analysis, 2014, 33(1): 74-80.
Citation: Ya-zhi BAI, Ai-mei ZHU, Jing-jing CUI, Mei-juan SHI, Jing-jing GAO, Jun ZHANG. Development of Nitrogen and Organic Carbon Reference Materials for China Offshore Marine Sediments[J]. Rock and Mineral Analysis, 2014, 33(1): 74-80.

中国近海沉积物氮和有机碳标准物质的研制

  • 基金项目:
    国家海洋局青年海洋科学基金项目(2011314,2012325);国家海洋局第一海洋研究所基本科研业务费资助项目(GY02-2012G35,GY02-2012G06)
详细信息
    作者简介: 白亚之,研究实习员,从事有机地球化学研究工作。E-mail: baiyazhi@fio.org.cn
  • 中图分类号: O613.61; O613.71;

Development of Nitrogen and Organic Carbon Reference Materials for China Offshore Marine Sediments

  • 我国海洋沉积物的研究近几年发展较快,但是缺少有定值的氮、有机碳标准物质。本文针对及其匮乏的氮、有机碳国家二级标准物质进行了我国近海沉积物总氮(TN)、总碳(TC)、总有机碳(TOC)含量的分析标准参考物质的研制。研究样品采自“我国近海海洋综合调查与评价”专项提供的表层沉积物,经过冷冻干燥、研磨至74 μm,使用元素分析仪和氧化热解-气相色谱法分析总氮和总碳的含量;使用元素分析仪和氧化热解-电位法分析总有机碳的含量,制备了一系列16个有定值的总氮、总碳、总有机碳含量的近海沉积物标准物质。样品在均匀性检验中,F的实测值小于临界值,相对偏差较小,样品的均匀性较好。在稳定性检验方面,两年内多次测定的分析结果无方向性变化,统计计算结果显示稳定性良好。本文研制的这16个近海沉积物标准物质在3家实验室进行了联合定值,按照ISO导则35和国家一级标准物质研制规范,给出了该系列标准物质总氮、总碳、总有机碳含量的标准值和不确定度。这批标准物质分为不同海区,不同海区的标准物质又分为不同的沉积物类型,研制的不同海区不同沉积物类型的标准物质对现有的海洋沉积物标准物质进行了有效的补充。
  • 加载中
  • 图 1  中国四大海区沉积物取样站位

    Figure 1. 

    图 2  样品的加工流程

    Figure 2. 

    图 3  稳定性检验结果

    Figure 3. 

    表 1  均匀性检验方差分析结果

    Table 1.  Variance analysis results of homogeneity test

    样品编号总氮总碳总有机碳
    x/%RSD/%Fx/%RSD/% Fx/%RSD/%F
    GSBS-10.0234.182.290.0990.910.660.0472.811.66
    GSBS-20.0762.191.681.0811.120.710.6440.561.29
    GSBS-30.0401.762.330.5400.620.150.2812.432.32
    GSBS-40.0471.461.341.8730.211.130.6200.421.62
    GSBS-50.0274.012.011.0150.761.920.0901.572.30
    GSYS-10.0632.881.831.3061.741.780.3742.742.06
    GSYS-20.0581.882.101.2981.291.640.4432.481.76
    GSYS-30.0246.281.400.5772.420.740.0682.241.72
    GSYS-40.0342.722.281.1820.701.590.1242.882.23
    GSYS-50.0582.482.311.2490.770.640.3821.391.56
    GSYS-60.0472.602.171.6663.752.030.3821.862.00
    GSES-10.0682.622.321.2252.622.260.4340.851.73
    GSES-20.0812.611.361.2302.620.440.5171.062.24
    GSSS-10.0244.171.610.5070.890.100.0450.841.01
    GSSS-20.0761.791.891.4190.701.960.8421.242.53
    GSSS-30.1002.972.362.0140.140.160.9090.192.39
    下载: 导出CSV

    表 2  精密度监控限

    Table 2.  The monitoring limits of precision

    含量范围RSD/%
    1 ∶ 5万1 ∶ 20万
    检出限3倍以内≤40≤35
    检出限3倍以上≤25≤23
    1%~5%-≤8
    >5%-≤3
    下载: 导出CSV

    表 3  分析标准物质的总氮、总碳、总有机碳含量的精密度

    Table 3.  Precision tests of the reference materials

    样品编号总氮总碳 总有机碳
    x/%RSD/%x/% RSD/%x/%RSD/%
    GSBS-10.0223.50.0990.80.0472.9
    GSBS-20.0762.61.0850.80.6430.5
    GSBS-30.0411.40.5410.50.2812.2
    GSBS-40.0471.31.8750.20.6200.4
    GSBS-50.0273.71.0170.50.0911.6
    GSYS-10.0642.21.2981.250.3762.7
    GSYS-20.0571.91.2960.30.4411.8
    GSYS-30.0247.50.5791.70.0682.2
    GSYS-40.0342.81.1820.60.1242.6
    GSYS-50.0582.51.2500.70.3811.5
    GSYS-60.0472.61.6471.00.3832.0
    GSES-10.0683.01.2291.00.4330.9
    GSES-20.0801.11.2350.50.5171.0
    GSSS-10.0244.20.5060.60.0461.0
    GSSS-20.0761.21.4230.70.8391.2
    GSSS-30.0992.62.0140.20.9080.1
    下载: 导出CSV

    表 4  各标准物质定值数据的离群数据检验结果

    Table 4.  Analytical results of discrete data for reference materials

    样品编号总氮总碳总有机碳
    $$SDt1t2 $$SDt1t2 $$SDt1t2
    GSBS-10.0230.0011.371.310.1010.002 2.381.400.0470.0011.851.38
    GSBS-20.0760.0011.951.561.0820.0151.272.530.6430.0042.072.46
    GSBS-30.0400.0011.381.630.5350.0082.171.920.2800.0071.541.42
    GSBS-40.0470.0012.311.561.8700.0051.811.950.6210.0032.291.97
    GSBS-50.0270.0011.691.341.0130.0071.772.030.0900.0012.111.43
    GSYS-10.0630.0022.141.341.3120.0211.901.790.3740.0091.252.09
    GSYS-20.0580.0011.131.831.3020.0091.771.620.4470.0121.831.04
    GSYS-30.0240.0021.321.860.5770.0141.661.940.0680.0011.851.28
    GSYS-40.0330.0011.881.471.1810.0082.052.220.1240.0031.830.86
    GSYS-50.0580.0012.261.301.2500.0081.711.190.3810.0051.461.80
    GSYS-60.0450.0021.791.641.6570.0181.652.430.3810.0072.001.06
    GSES-10.0670.0022.641.471.2230.0102.071.660.4340.0041.162.16
    GSES-20.0810.0022.380.961.2220.0142.031.920.5180.0051.631.21
    GSSS-10.0240.0011.621.640.5060.0162.361.240.0460.0012.421.02
    GSSS-20.0750.0012.102.031.4160.0102.001.340.842 0.010 1.723 1.846
    GSSS-30.1000.0031.942.042.0180.0081.502.080.909 0.002 1.445 1.555
    下载: 导出CSV

    表 5  正态性检验结果

    Table 5.  Normal inspection data for certified values

    项目统计量W
    GSBS-1GSBS-2GSBS-3GSBS-4GSBS-5GSYS-1GSYS-2GSYS-3
    总氮0.9330.9510.9630.9840.9360.9290.9280.936
    总碳0.9620.9630.9550.9570.9340.9510.9610.974
    总有机碳 0.950.960.9560.9330.9430.9510.9310.954
    项目GSYS-4GSYS-5GSYS-6GSES-1GSES-2GSSS-1GSSS-2GSSS-3
    总氮0.9460.9580.9290.9360.9330.9510.9550.945
    总碳0.9820.9660.9650.9640.9330.9530.9640.987
    总有机碳0.9810.9620.9310.9740.9620.9330.9510.93
    W(30,0.95)0.927
    下载: 导出CSV

    表 6  各标准物质的标准值和不确定度

    Table 6.  Certified values and uncertainty of the standard samples

    样品编号w/%
    总氮总碳总有机碳
    GSBS-10.023±0.0030.1±0.010.047±0.001
    GSBS-20.076±0.0021.08±0.030.64±0.006
    GSBS-30.04±0.0020.54±0.020.28±0.004
    GSBS-40.047±0.0021.87±0.050.62±0.003
    GSBS-50.027±0.0021.02±0.020.09±0.001
    GSYS-10.063±0.0021.31±0.020.38±0.009
    GSYS-20.058±0.0011.3±0.010.45±0.01
    GSYS-30.024±0.0020.58±0.020.068±0.001
    GSYS-40.033±0.0011.18±0.010.13±0.003
    GSYS-50.058±0.0011.25±0.010.38±0.005
    GSYS-60.045±0.0021.66±0.020.38±0.006
    GSES-10.067±0.0021.23±0.010.44±0.004
    GSES-20.081±0.0021.22±0.010.52±0.005
    GSSS-10.024±0.0010.51±0.010.046±0.001
    GSSS-20.075±0.0021.42±0.010.84±0.011
    GSSS-30.1±0.0032.02±0.010.91±0.002
    下载: 导出CSV
  • [1]

    http://www.cnki.com.cn/Article/CJFDTOTAL-HYDT606.003.htm

    [2]

    http://www.cnki.com.cn/Article/CJFDTOTAL-GPSS199702021.htm

    [3]

    海洋监测规范(GB 17378.1~1378.7)[S].北京:海洋出版社,1998.

    [4]

    http://www.cnki.com.cn/Article/CJFDTOTAL-HUTB200204010.htm

    [5]

    全国标准物质管理委员会.中华人民共和国标准物质目录(2013)[S].2013.

    [6]

    [7]

    [8]

    [9]

    [10]

    [11]

    http://www.cnki.com.cn/Article/CJFDTOTAL-HYHJ201303026.htm

    [12]

    http://www.cnki.com.cn/Article/CJFDTOTAL-YKDZ200305007.htm

    [13]

    doi: 10.3969/j.issn.1000-3657.2004.z1.011

    [14]

    DZ 0130.6—94,1∶5万和l∶20万化探样品质量要求和检查办法[S].1994: 55-60.

    [15]

    http://www.cnki.com.cn/Article/CJFDTOTAL-YKCS200104010.htm

    [16]

    http://www.cnki.com.cn/Article/CJFDTOTAL-DQXB200001015.htm

    [17]

    JJG 1006—94,一级标准物质[S].

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出版历程
收稿日期:  2013-06-21
录用日期:  2013-07-21

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