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Elemental Fractionation Studies of Biological Samples Using Laser Ablation Inductively Coupled Plasma Mass Spectrometry
Li Qing1; Zhang Guo-Xia; Chen Yi-Rui; Wang Zheng; Ding Chuan-Xian
2017
Source PublicationCHINESE JOURNAL OF ANALYTICAL CHEMISTRY
ISSN0253-3820
Volume45Issue:6Pages:868
AbstractThe ablated aerosols of biological matrix sample were studied using 213 nm nanosecond laser ablation system. The stable signal intensity and high sensitivity were obtained when the laser energy was 25%, the spot size was 200 mu m, the scan rate was 20 mu m/s, the frequency was 20 Hz and the carrier gas was 700 mL He + 700 mL Ar. Relative fractionation index of 56 elements were investigated and 31P as the internal standard element was selected under the optimized laser ablation conditions. The results showed that particle size of the biological sample was 3 mu m, which was larger compared with NIST 610 sample. Element fractionation in biological sample was smaller than in glass sample, and relative fractionation index of most elements attained 1.0 +/- 0.1. Element fractionation mechanism of biological sample was discussed. The possible reason why the relative fractionation index in biological sample with large particle size did not significantly increase compared to the glass sample is that the 3 mu m particles entered into ICP can be atomized. On the other hand, enrichment effect for large ablation particles was relatively small. Further study of the influence factors of fractionation effect indicated that, the fractionation effect had relations with laser ablation energy, laser frequency and scan rate, negatively relation with the oxide boiling point, and positively relation with oxide bond energy and ionization energy.
DOI10.11895/j.issn.0253.3820.170052
WOS IDWOS:000427854100009
EI Accession Number1872-2040
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/26673
Collection中国科学院上海硅酸盐研究所
Affiliation1.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li Qing,Zhang Guo-Xia,Chen Yi-Rui,et al. Elemental Fractionation Studies of Biological Samples Using Laser Ablation Inductively Coupled Plasma Mass Spectrometry[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2017,45(6):868.
APA Li Qing,Zhang Guo-Xia,Chen Yi-Rui,Wang Zheng,&Ding Chuan-Xian.(2017).Elemental Fractionation Studies of Biological Samples Using Laser Ablation Inductively Coupled Plasma Mass Spectrometry.CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,45(6),868.
MLA Li Qing,et al."Elemental Fractionation Studies of Biological Samples Using Laser Ablation Inductively Coupled Plasma Mass Spectrometry".CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 45.6(2017):868.
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