总有机碳分析仪准确测定湖泊沉积物中的TOC
|
摘要
讨论了总有机碳分析仪法在进行湖泊沉积物TOC测量过程中存在的问题,并给出了解决方案。用优化后的方法对美国国家标准与技术研究所(NIST)标样SRM 1941b和SRM1649b,以及国家标准物质GSS-9进行重复测试。结果显示,相对标准偏差均小于1%,同时测量值与标准参考值的相对误差也在±2%之内。说明该方法精密度高,测量结果准确可靠。
Problems frequently encountered during TOC testing were discussed and corresponding solutions were provided. NIST standards SRM 1941 b and SRM 1649 b,as well as the national standard substance GSS-9 were measured repeatedly based on the optimized method. The results showed that relative standard deviations were all less than 1%; meanwhile,the relative errors between measured values and standard reference values were within ± 2%. It indicated that the method had high precision and the measured results were accurate and reliable.
Problems frequently encountered during TOC testing were discussed and corresponding solutions were provided. NIST standards SRM 1941 b and SRM 1649 b,as well as the national standard substance GSS-9 were measured repeatedly based on the optimized method. The results showed that relative standard deviations were all less than 1%; meanwhile,the relative errors between measured values and standard reference values were within ± 2%. It indicated that the method had high precision and the measured results were accurate and reliable.
引文
[1] Meyer P. Org. Geochem.,1997,27(5-6):213
[2] Huang Q,Meng Z Q,Liu H L. Sci. China,Ser. B,1990,5:652黄麒,孟昭强,刘海玲.中国科学(B辑),1990,5:652
[3] Xu Y,Ai L,Tan L,et al. Chem. Geol.,2006,235(3-4):262
[4] Yancheva G,Nowaczyk N,Mingram J,et al. Nature. 2007,445:74
[5] Qiu L,Williams D,Gvorzdkov A,et al. Geology. 1993,21(1):25
[6] Yu B,Guo Y Q,Yang L S. Guangdong Forestry Science and Technology,2007,23(1):58于彬,郭彦青,杨乐苏.广东林业科技,2007,23(1):58
[7] Beaudoin A. J. Paleolimnol.,2003,29:387
[8] Zhu G W,Qin B Q,Gao G,et al. Chin. J. Anal. Lab.,2004,23(8):72朱广伟,秦宝强,高光,等.分析试验室,2004,23(8):72
[9] Qian B,Liu L,Xiao X. J. Hehai Univ. Nat. Sci. Edn.,2011,39(1):34钱宝,刘凌,肖潇.河海大学学报(自然科学版),2011,39(1):34
[10] Reference Value for TOC in SRM 1941b,NIST:Gaithersburg,MD,2011
[11] Certificate of Analysis for Standard Reference Material 1649a,NIST:Gaithersburg,MD,2007
[12] Wang J,Zhu L,Wang Y,et al. Quatern. Int. 2012,250:49
[13] Wang Q H,Ren Y F,Meng L,et al. Chin. J. Anal. Lab.,2013,32(10):41王巧环,任玉芬,孟龄,等.分析试验室,2013,32(10):41
[14] Wei X J,Hong M,Yu X Q,et al. J. NM. Agr. Univ.,2011,32(3):161魏晓军,红梅,于先泉,等.内蒙古农业大学学报,2011,32(3):161
[15] Wang Y,Wang J,Zhu L,et al. Holocene. 2017,27(10):1475
[16] Zhang X,Xu B,Günther F,et al. J. Geophys. Res. Atmos. 2017,122:9262
[2] Huang Q,Meng Z Q,Liu H L. Sci. China,Ser. B,1990,5:652黄麒,孟昭强,刘海玲.中国科学(B辑),1990,5:652
[3] Xu Y,Ai L,Tan L,et al. Chem. Geol.,2006,235(3-4):262
[4] Yancheva G,Nowaczyk N,Mingram J,et al. Nature. 2007,445:74
[5] Qiu L,Williams D,Gvorzdkov A,et al. Geology. 1993,21(1):25
[6] Yu B,Guo Y Q,Yang L S. Guangdong Forestry Science and Technology,2007,23(1):58于彬,郭彦青,杨乐苏.广东林业科技,2007,23(1):58
[7] Beaudoin A. J. Paleolimnol.,2003,29:387
[8] Zhu G W,Qin B Q,Gao G,et al. Chin. J. Anal. Lab.,2004,23(8):72朱广伟,秦宝强,高光,等.分析试验室,2004,23(8):72
[9] Qian B,Liu L,Xiao X. J. Hehai Univ. Nat. Sci. Edn.,2011,39(1):34钱宝,刘凌,肖潇.河海大学学报(自然科学版),2011,39(1):34
[10] Reference Value for TOC in SRM 1941b,NIST:Gaithersburg,MD,2011
[11] Certificate of Analysis for Standard Reference Material 1649a,NIST:Gaithersburg,MD,2007
[12] Wang J,Zhu L,Wang Y,et al. Quatern. Int. 2012,250:49
[13] Wang Q H,Ren Y F,Meng L,et al. Chin. J. Anal. Lab.,2013,32(10):41王巧环,任玉芬,孟龄,等.分析试验室,2013,32(10):41
[14] Wei X J,Hong M,Yu X Q,et al. J. NM. Agr. Univ.,2011,32(3):161魏晓军,红梅,于先泉,等.内蒙古农业大学学报,2011,32(3):161
[15] Wang Y,Wang J,Zhu L,et al. Holocene. 2017,27(10):1475
[16] Zhang X,Xu B,Günther F,et al. J. Geophys. Res. Atmos. 2017,122:9262