Name: untargeted metabolomics from biological sources using ultraperformance liquid chromatography-high resolution mass spectrometry (uplc-hrms)
Uploaded: 2013-05-20T14:00:00
Description: Watch this Scientific Journal Video about Untargeted Metabolomics from Biological Sources Using Ultraperformance Liquid Chromatography-High Resolution Mass Spectrometry UPLC-HRMS at JoVE.com

我们承认美国国立卫生研究院资助P30ES013508和5T32GM008076的支持。我们也感谢Thermo Scientific的访问2.0和DRS筛。尤金Ciccimaro和马克·桑德斯Thermo Scientific的有益的讨论。

1。提取细胞样本<ol><li>对于10厘米板细胞：一个预先标注为10毫升的玻璃离心管中收集1.5毫升的解除在介质中的细胞悬浮液进入。对于贴壁线，细胞应被举起，轻轻刮在1.5ml保存在冰中的介质。 可选 ：如果使用内部标准，添加一个适当的等分在这一步。 评论 ：淬火细胞代谢的某些代谢产物是至关重要的。对于时间敏感的代谢产物分析，如冷甲醇提取的程序应该考虑17 ...

<ol>
	<li>Pluskal, T., Nakamura, T., Villar-Briones, A., Yanagida, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Metabolic+profiling+of+the+fission+yeast+S.+pombe:+quantification+of+compounds+under+different+temperatures+and+genetic+perturbation.">Metabolic profiling of the fission yeast S. pombe: quantification of compounds under different temperatures and genetic perturbation.</a> Mol. Biosyst. 6 (1), 182-198 (2010).</li><li>Makarov, A., Denisov, E., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Performance+Evaluation+of+a+Hybrid+Linear+Ion+Trap/Orbitrap+Mass+Spectrometer.">Performance Evaluation of a Hybrid Linear Ion Trap/Orbitrap Mass Spectrometer.</a> Analytical Chemistry. 78 (7), 2113-2120 (2006).</li><li>Timischl, B., Dettmer, K., Kaspar, H., Thieme, M., Oefner, P. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Development+of+a+quantitative,+validated+capillary+electrophoresis-time+of+flight-mass+spectrometry+method+with+integrated+high-confidence+analyte+identification+for+metabolomics.">Development of a quantitative, validated capillary electrophoresis-time of flight-mass spectrometry method with integrated high-confidence analyte identification for metabolomics.</a> Electrophoresis. 29 (10), 2203-2214 (2008).</li><li>Katajamaa, M., Oresic, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Data+processing+for+mass+spectrometry-based+metabolomics.">Data processing for mass spectrometry-based metabolomics.</a> J. Chromatogr. A. 1158 (1-2), 318-328 (2007).</li><li>Katajamaa, M., Oresic, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Processing+methods+for+differential+analysis+of+LC/MS+profile+data.">Processing methods for differential analysis of LC/MS profile data.</a> BMC Bioinformatics. 6, 179 (2005).</li><li>Wilson, I. D., Nicholson, J. K., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=High+resolution+ultra+performance+liquid+chromatography+coupled+to+q-TOF+mass+spectrometry+as+a+tool+for+differential+metabolic+pathway+profiling+in+functional+genomic+studies.">High resolution ultra performance liquid chromatography coupled to q-TOF mass spectrometry as a tool for differential metabolic pathway profiling in functional genomic studies.</a> Journal of Proteome Research. 4 (2), 591-598 (2005).</li><li>Benton, H. P., Wong, D. M., Trauger, S. A., Siuzdak, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=XCMS2:+processing+tandem+mass+spectrometry+data+for+metabolite+identification+and+structural+characterization.">XCMS2: processing tandem mass spectrometry data for metabolite identification and structural characterization.</a> Anal. Chem. 80 (16), 6382-6389 (2008).</li><li>Katajamaa, M., Miettinen, J., Oresic, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=MZmine:+toolbox+for+processing+and+visualization+of+mass+spectrometry+based+molecular+profile+data.">MZmine: toolbox for processing and visualization of mass spectrometry based molecular profile data.</a> Bioinformatics. 22 (5), 634-636 (2006).</li><li>Pluskal, T., Castillo, S., Villar-Briones, A., Oresic, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=MZmine+2:+Modular+framework+for+processing,+visualizing,+and+analyzing+mass+spectrometry-based+molecular+profile+data.">MZmine 2: Modular framework for processing, visualizing, and analyzing mass spectrometry-based molecular profile data.</a> BMC Bioinformatics. 11 (1), 395 (2010).</li><li>Smith, C. A., Want, E. J., O'Maille, G., Abagyan, R., Siuzdak, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=XCMS:+Processing+Mass+Spectrometry+Data+for+Metabolite+Profiling+Using+Nonlinear+Peak+Alignment,+Matching,+and+Identification.">XCMS: Processing Mass Spectrometry Data for Metabolite Profiling Using Nonlinear Peak Alignment, Matching, and Identification.</a> Analytical Chemistry. 78 (3), 779-787 (2006).</li><li>Tautenhahn, R., Patti, G. J., Rinehart, D., Siuzdak, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=XCMS+Online:+A+Web-Based+Platform+to+Process+Untargeted+Metabolomic+Data.">XCMS Online: A Web-Based Platform to Process Untargeted Metabolomic Data.</a> Analytical Chemistry. 84 (11), 5035-5039 (2012).</li><li>Gelhaus, S. L., Mesaros, A. C., Blair, I. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cellular+Lipid+Extraction+for+Targeted+Stable+Isotope+Dilution+Liquid+Chromatography-Mass+Spectrometry+Analysis.">Cellular Lipid Extraction for Targeted Stable Isotope Dilution Liquid Chromatography-Mass Spectrometry Analysis.</a> J. Vis. Exp. (57), e3399 (2011).</li><li>Want, E. J., Wilson, I. D., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Global+metabolic+profiling+procedures+for+urine+using+UPLCG&#199;&#244;MS.">Global metabolic profiling procedures for urine using UPLCG&#199;&#244;MS.</a> Nature Protocols. 5 (6), 1005-1018 (2010).</li><li>Sellick, C. A., Hansen, R., Stephens, G. M., Goodacre, R., Dickson, A. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Metabolite+extraction+from+suspension-cultured+mammalian+cells+for+global+metabolite+profiling.">Metabolite extraction from suspension-cultured mammalian cells for global metabolite profiling.</a> Nature Protocols. 6 (8), 1241-1249 (2011).</li><li>Dunn, W. B., Broadhurst, D., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Procedures+for+large-scale+metabolic+profiling+of+serum+and+plasma+using+gas+chromatography+and+liquid+chromatography+coupled+to+mass+spectrometry.">Procedures for large-scale metabolic profiling of serum and plasma using gas chromatography and liquid chromatography coupled to mass spectrometry.</a> Nature protocols. 6 (7), 1060-1083 (2011).</li><li>Masson, P., Alves, A. C., Ebbels, T. M. D., Nicholson, J. K., Want, E. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Optimization+and+evaluation+of+metabolite+extraction+protocols+for+untargeted+metabolic+profiling+of+liver+samples+by+UPLC-MS.">Optimization and evaluation of metabolite extraction protocols for untargeted metabolic profiling of liver samples by UPLC-MS.</a> Analytical Chemistry. 82 (18), 7779-7786 (2010).</li><li>Shaham, O., Slate, N. G., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+plasma+signature+of+human+mitochondrial+disease+revealed+through+metabolic+profiling+of+spent+media+from+cultured+muscle+cells.">A plasma signature of human mitochondrial disease revealed through metabolic profiling of spent media from cultured muscle cells.</a> Proceedings of the National Academy of Sciences. 107 (4), 1571-1575 (2010).</li><li>Cequier-Sa&#252;nchez, E., Rodri&#252;guez, C., Ravelo, A. G., Za&#252;rate, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Dichloromethane+as+a+Solvent+for+Lipid+Extraction+and+Assessment+of+Lipid+Classes+and+Fatty+Acids+from+Samples+of+Different+Natures.">Dichloromethane as a Solvent for Lipid Extraction and Assessment of Lipid Classes and Fatty Acids from Samples of Different Natures.</a> Journal of Agricultural and Food Chemistry. 56 (12), 4297-4303 (2008).</li><li>Keller, A., Eng, J., Zhang, N., Li, X. J., Aebersold, R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+uniform+proteomics+MS/MS+analysis+platform+utilizing+open+XML+file+formats.">A uniform proteomics MS/MS analysis platform utilizing open XML file formats.</a> Mol. Syst. Biol. 1, (2005).</li><li>Cleveland, W. S., Devlin, S. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Locally+weighted+regression+-+an+approach+to+regression-analysis+by+local+fitting.">Locally weighted regression - an approach to regression-analysis by local fitting.</a> J. Am. Stat. Assoc. 83 (403), 596-610 (1988).</li><li>Lange, E., Tautenhahn, R., Neumann, S., Gropl, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Critical+assessment+of+alignment+procedures+for+LC-MS+proteomics+and+metabolomics+measurements.">Critical assessment of alignment procedures for LC-MS proteomics and metabolomics measurements.</a> BMC Bioinformatics. 9 (1), 375 (2008).</li><li>Tautenhahn, R., Bottcher, C., Neumann, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Highly+sensitive+feature+detection+for+high+resolution+LC/MS.">Highly sensitive feature detection for high resolution LC/MS.</a> BMC Bioinformatics. 9 (1), 504 (2008).</li><li>Kuhl, C., Tautenhahn, R., Bottcher, C., Larson, T. R., Neumann, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=CAMERA:+An+Integrated+Strategy+for+Compound+Spectra+Extraction+and+Annotation+of+Liquid+Chromatography/Mass+Spectrometry+Data+Sets.">CAMERA: An Integrated Strategy for Compound Spectra Extraction and Annotation of Liquid Chromatography/Mass Spectrometry Data Sets.</a> Analytical Chemistry. 84 (1), 283-289 (2012).</li><li>Kanehisa, M., Goto, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=KEGG:+kyoto+encyclopedia+of+genes+and+genomes.">KEGG: kyoto encyclopedia of genes and genomes.</a> Nucleic Acids Res. 28 (1), 27-30 (2000).</li><li>Smith, C. A., O'Maille, G., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=METLIN:+a+metabolite+mass+spectral+database.">METLIN: a metabolite mass spectral database.</a> Ther. Drug Monit. 27 (6), 747-751 (2005).</li><li>Wang, Y., Xiao, J., Suzek, T. O., Zhang, J., Wang, J., Bryant, S. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=PubChem:+a+public+information+system+for+analyzing+bioactivities+of+small+molecules.">PubChem: a public information system for analyzing bioactivities of small molecules.</a> Nucleic Acids Res. 37 Web Server, W623-W633 (2009).</li><li>Wishart, D. S., Knox, C., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=HMDB:+a+knowledgebase+for+the+human+metabolome.">HMDB: a knowledgebase for the human metabolome.</a> Nucleic Acids Res. 37 Database, D603-D610 (2009).</li><li>Bligh, E. G., Dyer, W. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+rapid+method+of+total+lipid+extraction+and+purification.">A rapid method of total lipid extraction and purification.</a> Canadian Journal of Biochemistry and Physiology. 37 (8), 911-917 (1959).</li><li>Folch, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+simple+method+for+the+isolation+and+purification+of+total+lipids+from+animal+tissues.">A simple method for the isolation and purification of total lipids from animal tissues.</a> J. Biol. Chem. 226, 497-509 (1957).</li><li>Avery, M. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Quantitative+characterization+of+differential+ion+suppression+on+liquid+chromatography/atmospheric+pressure+ionization+mass+spectrometric+bioanalytical+methods.">Quantitative characterization of differential ion suppression on liquid chromatography/atmospheric pressure ionization mass spectrometric bioanalytical methods.</a> Rapid Communications in Mass Spectrometry. 17 (3), 197-201 (2003).</li></ol>

调查内源性或外源性的生物转化，或捕捉利益的样本新陈代谢不相关的代谢组学研究提供了有力工具。输出的分辨率和灵敏度的技术用来分离和分析样品，产生的大数据集的处理能力，并有能力来挖掘有用的信息数据集（ 例如，精确的质量数据库检索）的技术尺度。最近，这已促成进步高分辨率质谱仪，高或超高效液相色谱法。差分分析软件分析瓶颈已经解决，并可以完成峰值检测调整保...

由于最近的技术进步，在人力资源管理领域的，不相关的，假设产生的代谢组学方法已经成为一种可行的方法复杂样品的分析。1质谱仪能够100,000决议，促进常规低的部分每百万（PPM）的质量精度，已成为广泛可从多个供应商2,3允许此质量准确度分析物的身份，同位素模式识别，加合物的鉴定中的初步分配更大的特异性和信心。4当加上适当的提取过程和高性能液相色谱或UPLC，复杂混合物可以分析来自于保留时间数据的附加 ​​特异性。5 UPLC色谱具有更大的效率，并允许更高的灵敏度，分辨率和分析时间，使由此产生的大的数据集可以被整合到任何一个更大的覆盖范围的代谢组可能的。6多个差分分析软件和有用的模式或个别分析物开采7,8,9,10,11推测点击可以使用峰值检测算法相结合，精确的质量为基础的化学式预测，预测碎片，初步确定化学数据库搜索。这种方法允许优先费时的完整的结构鉴定或更敏感和更具体的稳定同位素稀释的发展目标UPLC /选定或多个反应监测/ MS研究，是目前的黄金标准定量方法。12 生物样品的不同性质导致尿13，15日，14日 ，血清细胞或组织16提取协议的优化。此协议功能的细胞，血清和组织提取物。在适当的情况下，意见和附加引用已被列入修饰蒸发散的程序处理包括稳定同位素，包括特别是不稳定的代谢物。

<table border="1">
	<tbody>
		<tr>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>Reagent</td>
		</tr>
		<tr>
			<td>Phosphate Buffered Saline</td>
			<td>Mediatech</td>
			<td>21-031-CM</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Water (H2O)</td>
			<td>Fisher Scientific</td>
			<td>W7-4</td>
			<td>(optima)</td>
		</tr>
		<tr>
			<td>Acetonitrile (CH3CN)</td>
			<td>Fisher Scientific</td>
			<td>A996-4</td>
			<td>(optima)</td>
		</tr>
		<tr>
			<td>Methanol (CH3OH)</td>
			<td>Fisher Scientific</td>
			<td>A454-4</td>
			<td>(optima)</td>
		</tr>
		<tr>
			<td>Isopropanol</td>
			<td>Fisher Scientific</td>
			<td>A464-4</td>
			<td>(optima)</td>
		</tr>
		<tr>
			<td>Chloroform (CH3Cl)</td>
			<td>Sigma-Aldrich</td>
			<td>366927</td>
			<td>Hazard</td>
		</tr>
		<tr>
			<td>Dichloromethane (CH2Cl2)</td>
			<td>Acros Organics</td>
			<td>61030-1000</td>
			<td>To replace chloroform</td>
		</tr>
		<tr>
			<td>Diethyl Ether</td>
			<td>Sigma-Aldrich</td>
			<td>346136</td>
			<td>To replace chloroform</td>
		</tr>
		<tr>
			<td>Formic Acid (FA)</td>
			<td>Fisher Scientific</td>
			<td>&nbsp;</td>
			<td>(optima)</td>
		</tr>
		<tr>
			<td>NH4OH</td>
			<td>Fisher Scientific</td>
			<td>A470-250</td>
			<td>(optima)</td>
		</tr>
		<tr>
			<td>Ammonium formate (HCOONH4)</td>
			<td>Sigma-Aldrich</td>
			<td>78314</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>MicroSpin C18 Columns</td>
			<td>Nest Group Inc</td>
			<td>SS18V</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Pasteur Pipettes</td>
			<td>Fisher Scientific</td>
			<td>13-678-200</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>10 ml Glass Centrifuge Tubes</td>
			<td>Kimble Chase</td>
			<td>73785-10</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>10 ml Plastic Centrifuge Tubes</td>
			<td>CellTreat</td>
			<td>CLS-4301-015</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>LC Vials (glass)</td>
			<td>Waters</td>
			<td>60000751CV</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>LC Inserts (glass)</td>
			<td>Waters</td>
			<td>WAT094171</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>LC Vials (plastic)</td>
			<td>Waters</td>
			<td>186002640</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>0.22 &mu;m Filters</td>
			<td>Corning</td>
			<td>8169</td>
			<td>nylon</td>
		</tr>
		<tr>
			<td>2 ml Eppendorf Tubes</td>
			<td>BioExpress</td>
			<td>C-3229-1</td>
			<td>Low Retention</td>
		</tr>
		<tr>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>Equipment</td>
		</tr>
		<tr>
			<td>High Resolution Mass Spectrometer</td>
			<td>Thermo Scientific</td>
			<td>LTQ XL-Orbitrap</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>HPLC/UPLC</td>
			<td>Waters</td>
			<td>nanoACQUITY UPLC</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Source</td>
			<td>Michrom</td>
			<td>Thermo Advance Source</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>Differential Analysis Software</td>
			<td>Thermo Scientific</td>
			<td>SIEVE 2.0</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td>nanoACQUITY C18 BEH130</td>
			<td>Waters</td>
			<td>186003546</td>
			<td>1.7 &mu;m particle size, 150 mm x 100 &mu;m</td>
		</tr>
		<tr>
			<td>Acentis Express C8</td>
			<td>Sigma-Aldrich</td>
			<td>54262</td>
			<td>2.7 &mu;m particle size, 15 cm x 200 &mu;m</td>
		</tr>
	</tbody>
</table>

untargeted metabolomics from biological sources using ultraperformance liquid chromatography-high resolution mass spectrometry (uplc-hrms)

在这里，我们提出了一个工作流程，分析代谢公司的利益，包括生物样品，细胞，血清，或组织。先将样品分离成极性和非极性组分的液 - 液固相萃取，部分纯化的，以方便下游分析。这两种水溶液（极性代谢物）和有机相（非极性代谢物）的初始提取处理，调查广泛的代谢物。代谢物分开由不同的液相色谱方法，根据其分区属性。在该方法中，我们提出了微流的超高性能（UP）的液相色谱方法，但该协议是可扩展的，更高的流量和较低的压力下。介绍进入质谱仪可以通过优化源条件一般或复合。在正面和负面的模式在全扫描模式进行了广泛的离子检测m / z范围点多面广，使用高分辨率最近Ç仪器alibrated。出版商无差分析进行生物信息学平台。这种方法的应用包括代谢途径筛选，生物标志物的发现和药物开发。

结果显示选定的数据从6小时治疗的SH-SY5Y胶质母细胞瘤的农药和细胞与线粒体复合物I抑制剂鱼藤酮。为简单起见，只有有机相正模式数据。对样品进行处理，并如上所述分析（ 图1，表1，表2）和无标签定量，分子筛和XCMS的在线到两个差分分析平台上加载。虽然有大量的点击率（ 图2，图3），这些功能包括用于差分分析两种方案的确定可能出现的文物，集成不善的山峰，?...

Watch this Scientific Journal Video about Untargeted Metabolomics from Biological Sources Using Ultraperformance Liquid Chromatography-High Resolution Mass Spectrometry UPLC-HRMS at JoVE.com

Untargeted Metabolomics from Biological Sources Using Ultraperformance Liquid Chromatography-High Resolution Mass Spectrometry UPLC-HRMS

不相关的代谢组学研究提供了一个假说，产生一种代谢轮廓的快照。此协议将展示从细胞，血清或组织中的代谢产物的提取和分析。代谢物甲范围进行调查，采用液 - 液固相萃取，微流超高效液相色谱/高分辨率质谱（UPLC-HRMS）耦合到差分分析软件。

不相关的代谢组学，生物源使用超高效液相色谱 - 高分辨质谱（UPLC-HRMS）

Here we present a workflow to analyze the metabolic profiles for biological samples of interest including; cells, serum, or tissue. The sample is first ...

Research

JoVE Journal

Chemistry

Untargeted Metabolomics from Biological Sources Using Ultraperformance Liquid Chromatography-High Resolution Mass Spectrometry (UPLC-HRMS)

Large Scale Non-targeted Metabolomic Profiling of Serum by Ultra Performance Liquid Chromatography-Mass Spectrometry (UPLC-MS)

Large Scale Non-targeted Metabolomic Profiling of Serum by Ultra Performance Liquid Chromatography-Mass Spectrometry UPLC-MS

规模以上非靶向代谢组学剖析血清超高效液相色谱 - 质谱（UPLC-MS）

Non-targeted metabolite profiling by ultra performance liquid chromatography coupled with mass spectrometry (UPLC-MS) is a powerful technique to ...

科研

化学

Analyzing Protein Dynamics Using Hydrogen Exchange Mass Spectrometry

使用氢交换质谱分析蛋白质动力学

All cellular processes depend on the functionality of proteins. Although the functionality of a given protein is the direct consequence of its unique ...

Rapid High-throughput Species Identification of Botanical Material Using Direct Analysis in Real Time High Resolution Mass Spectrometry

植物材料的快速高通量物种鉴定实时高分辨质谱法直接分析

We demonstrate that direct analysis in real time-high resolution mass spectrometry can be used to produce mass spectral profiles of botanical material, ...

An HS-MRM Assay for the Quantification of Host-cell Proteins in Protein Biopharmaceuticals by Liquid Chromatography Ion Mobility QTOF Mass Spectrometry

液相色谱离子迁移 QTOF 质谱测定蛋白质生物中宿主细胞蛋白的 HS-MRM 法

The analysis of low-level (1-100 ppm) protein impurities (e.g., host-cell proteins (HCPs)) in protein biotherapeutics is a challenging assay requiring ...

Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry

利用二次 Nanoelectrospray 电离耦合高分辨质谱的实时呼吸分析

Exhaled volatile organic compounds (VOCs) have aroused considerable interest, since they can serve as biomarkers for disease diagnosis and environmental ...

Synthesis and Mass Spectrometry Analysis of Oligo-peptoids

寡 peptoids 的合成及质谱分析

Peptoids are sequence-controlled peptide-mimicking oligomers consisting of N-alkylated glycine units. Among many potential applications, peptoids have ...

Microprobe Capillary Electrophoresis Mass Spectrometry for Single-cell Metabolomics in Live Frog (Xenopus laevis) Embryos

Microprobe Capillary Electrophoresis Mass Spectrometry for Single-cell Metabolomics in Live Frog Xenopus laevis Embryos

活蛙 (爪蟾) 胚胎单细胞代谢的微探针毛细管电泳质谱

The quantification of small molecules in single cells raises new potentials for better understanding the basic processes that underlie embryonic ...

Large-scale Top-down Proteomics Using Capillary Zone Electrophoresis Tandem Mass Spectrometry

利用毛细管区电泳串联质谱技术进行大尺度自上而下蛋白质组学

Capillary zone electrophoresis-electrospray ionization-tandem mass spectrometry (CZE-ESI-MS/MS) has been recognized as a useful tool for top-down ...

High-throughput and Comprehensive Drug Surveillance Using Multisegment Injection-Capillary Electrophoresis-Mass Spectrometry

New analytical methods are urgently needed to enable high-throughput, yet comprehensive drug screening, given an alarming opioid and prescription drug ...