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Laser desorption/ionization time-of-flight mass spectrometry of triacylglycerides and other components in fingerprint samples.

机译：甘油三酸酯和指纹样品中其他成分的激光解吸/电离飞行时间质谱。

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This work focused on the analysis of fingerprint samples containing triacylglycerides (TAGs) and other components using laser desorption/ionization time-of-flight (LDI-TOF) mass spectrometry for structure elucidation and gender analysis. This type of analysis could be useful for forensic cases in which pattern recognition was of poor quality or for disease indicators or biomarkers. This procedure allowed short analysis times because no matrix was used and very little sample preparation was required. A tandem mass spectrometry (MS/MS) method allowed identification of some TAGs by fragmentation. Spectra were compared for gender studies based on relative and absolute intensities. Among gender comparison, two TAGs were found to be significant at 95% and two other TAGs at 97.5% significance using a t-distribution. The degradation rate of a fingerprint was also studied along with the cosmetic ingredients present in some samples. Both of these studies could be very useful in a forensic setting for determination of a fingerprint's age and identity of cosmetic products contained within a sample.

机译：这项工作的重点是使用激光解吸/电离飞行时间（LDI-TOF）质谱法分析包含三酰基甘油酯（TAG）和其他成分的指纹样品，以进行结构阐明和性别分析。这种类型的分析对于模式识别质量较差的法医案件或疾病指标或生物标记物可能有用。此过程可缩短分析时间，因为不使用任何基质，而且样品制备非常少。串联质谱（MS / MS）方法允许通过片段鉴定某些TAG。比较光谱以基于相对强度和绝对强度进行性别研究。在性别比较中，使用t分布发现两个TAG的显着性为95％，另外两个TAG的显着性为97.5％。还研究了指纹的降解率以及一些样品中存在的化妆品成分。这两项研究在法医环境中对于确定指纹的年龄和样本中所含化妆品的身份可能非常有用。

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作者
Emerson, Elizabeth Lauren.;
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作者单位

University of Arkansas.;

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授予单位 University of Arkansas.;
学科 Chemistry Analytical.
学位 M.S.
年度 2008
页码 75 p.
总页数 75
原文格式 PDF
正文语种 eng
中图分类
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机译：基质辅助激光解吸/电离飞行时间与基质辅助激光解吸/电离的组合傅里叶变换离子回旋共振质谱实验的评估，用于肽质量指纹分析
2. Laser desorption/ionization time-of-flight mass spectrometry of triacylglycerols and other components in fingermark samples. [J] . Emerson B, Gidden J, Lay JO Jr, Journal of forensic sciences. . 2011,第2期

机译：指纹样本中三酰基甘油和其他成分的激光解吸/电离飞行时间质谱。
3. Chemical Characterization of Latent Fingerprints by Matrix-Assisted Laser Desorption Ionization, Time-of-Flight Secondary Ion Mass Spectrometry, Mega Electron Volt Secondary Mass Spectrometry, Gas Chromatography/Mass Spectrometry, X-ray Photoelectron Spectroscopy, and Attenuated Total Reflection Fourier Transform Infrared Spectroscopic Imaging: An Intercomparison [J] . Melanie. J. Bailey, Nicholas J. Bright, Ruth S. Croxton, Analytical chemistry . 2012,第20期

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4. Discrimination of Aspergillus Isolates at the Species and Strain Level by Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry Fingerprinting [C] . Amanda D. Buskirk, Justin M. Hettick, Brett J. Green, ASMS Conference on Mass Spectrometry and Allied Topics . 2008

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5. Laser desorption/laser ionization time-of-flight mass spectrometry instrument design and investigation of the desorption and ionization mechanisms of matrix-assisted laser desorption/ionization. [D] . King, Richard Charles, III. 1994

机译：激光解吸/激光电离飞行时间质谱仪的设计以及基质辅助激光解吸/电离的解吸和电离机理研究。
6. Typing of Ochrobactrum anthropi clinical isolates using automated repetitive extragenic palindromic-polymerase chain reaction DNA fingerprinting and matrix-assisted laser desorption/ionization–time-of-flight mass spectrometry [O] . Angela Quirino, Giovanna Pulcrano, Linda Rametti, 2014

机译：使用自动重复的外源性回文聚合酶链反应DNA指纹图谱和基质辅助激光解吸/电离-飞行时间质谱法对拟人O骨临床分离株进行分型
7. Chemical characterization of latent fingerprints by matrix-assisted laser desorption ionization, time-of-flight secondary ion mass spectrometry, mega electron volt secondary mass spectrometry, gas chromatography/mass spectrometry, X-ray photoelectron spectroscopy, and attenuated total reflection Fourier transform infrared spectroscopic imaging: an intercomparison [O] . Bailey, Melanie J., Bright, Nicholas J., Croxton, Ruth S., 2012

机译：潜在指纹的化学表征，包括基质辅助激光解吸电离，飞行时间二次离子质谱，兆电子伏特二次质谱，气相色谱/质谱，X射线光电子能谱和衰减全反射傅里叶变换红外光谱成像：比较

Laser desorption/ionization time-of-flight mass spectrometry of triacylglycerides and other components in fingerprint samples.

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