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We quantitatively analyze the concentration of element chromium in edible gelatin sample by the laser-induced breakdown spectroscopy. As the excitation source, Nd:YAG pulsed laser (wavelength 355 nm) is used to generate a laser plasma in edible gelatin. We study the relationship between spectral intensity and delay time, and find that the optimal condition is 1.7 μs. The experimental data show that the relation between the spectral line intensity (CrI: 425.43 nm) and the concentration of chromium is linear when we use the internal standard method to quantitatively analyze the concentration of chromium in a range from 10 ppm to 200 ppm. This study shows that internal standard method of quantitative analysis works well on measuring the chromium concentration in edible gelatin.
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Keywords:
- laser-induced breakdown spectroscopy /
- quantitative analysis /
- calibration curve /
- chromium
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[17] Cui Z F, Zhang X Y, Yao G X, Wang X L 2006 Acta Phys. Sin. 55 4506 (in Chinese) [崔执凤, 张先炎, 姚关心, 汪小丽 2006 55 4506]
[18] National Intitute of Standards and Technology, Atomic Spectral Database. http: //physics. nist. gov
[19] Xie C L, Lu J D, Yao S C, Liang J J 2011 Laser and Optoelectr. Prog. 48 (in Chinese) [谢承利, 陆继东, 姚顺春, 梁俊杰 2011 激光与光电子学进 48]
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[1] Chen Z J, Li H K, Liu M, Li R H 2008 Spectrochim. Acta B 63 41
[2] Liu D M, Lu D S, Li Z G, Lu L, Lei Z L 1993 Chin. Phys. Lett. 10 12
[3] Liu J, Tao H Y, Gao X, Hao Z Q, Ling J Q 2013 Chin. Phys. B 22 044206
[4] Dong M R, Lu J D, Li J 2011 Acta Opt. Sin. 31 1 (in Chinese) [董美蓉, 陆继东, 李军 2011 光学学报 31 1]
[5] Fornarini L, Spizzichino V, Colao F, Fantoni R, Lazic V 2006 Anal. Bioanal. Chem. 385 272
[6] Melessanaki K, Papadakis V, Balas C, Anglos D 2001 Spectrochim. Acta Part B 56 2337
[7] Corsi M, Cristoforetti G, Hidalgo M, Legnaioli S, Palleschi V, Salvetti A, Tognoni E, Vallebona C 2006 Appl. Geochem. 21 748
[8] Zhang D C, Ma X W, Zhu X L, Li Bin, Zu K L 2008 Acta Phys. Sin. 57 6348 (in Chinese) [张大成, 马新文, 朱小龙, 李斌, 祖凯玲 2008 57 6348]
[9] Sall B, Cremers D A, Maurice S, Wiens R C 2005 Spectrochim. Acta Part B 60 479
[10] Radziemski L, Cremers D A, Benelli K, Khoo C, Harris R D 2005 Spectrochim. Acta Part B 60 237
[11] Shen X K, Liu Y F 2008 Appl Opt. 47 11
[12] Jung E C, Lee D H, Yun J G, Yeon J W, Song K 2011 Spectrochim. Acta Part B: Atom. Spectrosc. 66 9
[13] Wang C L, Liu J G, Zhao N J, Ma M J, Wang Y, et al. 2013 Acta Phys. Sin. 62 125201 (in Chinese) [王春龙, 刘建国, 赵南京, 马明俊, 王寅, 等 2013 62 125201]
[14] Zhang X, Yao M Y, Liu M H 2013 Acta Phys. Sin. 62 044211 (in Chinese) [张旭, 姚明印, 刘木华 2013 62 044211]
[15] Sun D X, Sun M G, Dong C Z, Wang X L, Zhang D C, Ma X W 2011 Acta Phys. Sin. 59 4571 (in Chinese) [孙对兄, 苏茂根, 董晨钟, 王向丽, 张大成, 马新文 2011 59 4571]
[16] Lu C P, Liu W Q, Zhao N J, Liu L T, Chen D, Zhang Y J, Liu J G 2011 Acta Phys. Sin. 60 045206 (in Chinese) [鲁翠萍, 刘文清, 赵南京, 刘立拓, 陈东, 张玉均, 刘建国 2011 60 045206]
[17] Cui Z F, Zhang X Y, Yao G X, Wang X L 2006 Acta Phys. Sin. 55 4506 (in Chinese) [崔执凤, 张先炎, 姚关心, 汪小丽 2006 55 4506]
[18] National Intitute of Standards and Technology, Atomic Spectral Database. http: //physics. nist. gov
[19] Xie C L, Lu J D, Yao S C, Liang J J 2011 Laser and Optoelectr. Prog. 48 (in Chinese) [谢承利, 陆继东, 姚顺春, 梁俊杰 2011 激光与光电子学进 48]
[20] Xin R X, et al. 2004 Plasma Atomic Emission Spectroscopy Analysis (Beijing: Chemical Industry Press) pp123-130 (in Chinese) [辛仁轩, 等 2004 离子体原子发射光谱分析 (北京: 化学工业出版社) 第123–130页]
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