A method of aligning peak lists generated by gas chromatography high-resolution mass spectrometry.
A method of aligning peak lists generated by gas chromatography high-resolution mass spectrometry.
复制标题
一种对齐气相色谱高分辨率质谱生成的峰列表的方法。
DOI:
10.1039/c3an00667k
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Zhang,Xiang
中科院分区:
文献类型:
--
作者:
Wei,Xiaoli;Shi,Xue;Merrick,Mark;Willis,Peter;Alonso,David;Zhang,Xiang
We report a method for the peak list alignment of gas chromatography high resolution time-of-flight mass spectrometry data. The alignment is performed in a z-score transformed retention time domain to standardize chromatographic peak distribution across samples. A mixture score is developed to assess the similarity between two peaks by simultaneously evaluating the mass spectral similarity and the closeness of retention time. An analysis of experimental data acquired under three different flow rates indicates that the proposed method is able to correctly align the heterogeneous data. The effectiveness of method is further validated by analyzing experimental data of multiple mixtures of metabolite extract from mouse liver with 28 spiked-in acids. All of the detected spiked-in acids were correctly aligned. A statistical test correctly detected the concentration differences of the spiked-in compounds between sample groups using the alignment table. The area under curve (AUC) value in the receiver operating characteristic (ROC) curve is larger than 0.85 in all three of the compared sample groups, indicating a high accuracy of peak alignment and supporting the potential application of the proposed method for metabolomics projects such as biomarker discovery.
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DOI:
10.1080/00039896.1981.10667615
发表时间:
1981-01-01
期刊:
ARCHIVES OF ENVIRONMENTAL HEALTH
影响因子:
--
作者:
BROWN, DP;JONES, M
通讯作者:
JONES, M
DOI:
10.1093/jnci/55.6.1453
发表时间:
1975
期刊:
Journal of the National Cancer Institute
影响因子:
--
作者:
R. Kimbrough;R. Squire;R. Linder;J. Strandberg;R. Montali;V. Burse
通讯作者:
V. Burse
DOI:
10.1073/pnas.82.23.7924
发表时间:
1985
影响因子:
11.1
作者:
Niman,HL;Thompson,AM;Yu,A;Markman,M;Willems,JJ;Herwig,KR;Habib,NA;Wood,CB;Houghten,RA;Lerner,RA
通讯作者:
Lerner,RA
影响因子:
10.4
作者:
O. Hutzinger;G. G. Choudhry;B. Chittim;L. E. Johnston
通讯作者:
L. E. Johnston
影响因子:
56.9
作者:
SLAMON, DJ;DEKERNION, JB;CLINE, MJ
通讯作者:
CLINE, MJ