The Role of Fluorinated Alcohols as Mobile Phase Modifiers for LC-MS Analysis of Oligonucleotides.

The Role of Fluorinated Alcohols as Mobile Phase Modifiers for LC-MS Analysis of Oligonucleotides.
复制标题

DOI:
10.1007/s13361-016-1500-3
复制
发表时间:
2017-01
影响因子:
3.2
通讯作者:
Bartlett MG
Bartlett MG
中科院分区:
化学3区
文献类型:
--
作者:
Basiri B;van Hattum H;van Dongen WD;Murph MM;Bartlett MG

文献摘要

参考文献

被引文献

相似文献

六氟异丙醇(HFIP)自从首次报道其用于寡核苷酸的液相色谱-质谱(LC-MS)分析以来,已被广泛用作移动的相的酸性改性剂。考虑到HFIP与在电喷雾电离中引起显著MS信号抑制的羧酸相比的优异性能,这并不奇怪。然而,我们已经发现,其它氟化醇也可以用于移动的相制备,并且最佳氟化醇的选择由离子配对(IP)剂决定。虽然HFIP是与疏水性较低的IP剂一起使用的非常好的选择,但是当与更疏水的IP剂一起使用时,其他氟化醇如1,1,1,3,3,3-六氟-2-甲基-2-丙醇(HFMIP)可以显著优于HFIP。我们还发现,酸性更强的氟化醇有助于将具有二级结构(例如折叠链和发夹)的寡核苷酸转移到气相中。
Hexafluoroisopropanol (HFIP) has been widely used as an acidic modifier for mobile phases for liquid chromatography-mass spectrometry (LC-MS) analysis of oligonucleotides ever since the first report of its use for this purpose. This is not surprising considering the exceptional performance of HFIP compared to carboxylic acids which cause significant MS signal suppression in electrospray ionization. However, we have found that other fluorinated alcohols can also be utilized for mobile phase preparation and the choice of optimal fluorinated alcohol is determined by the ion-pairing (IP) agent. While HFIP is a very good choice to be used alongside less hydrophobic IP agents, other fluorinated alcohols such as 1,1,1,3,3,3-hexafluoro-2-methyl-2-propanol (HFMIP) can significantly outperform HFIP when used with more hydrophobic IP agents. We also found that more acidic fluorinated alcohols assist with the transfer of oligonucleotides with secondary structure (e.g. folded strands and hairpins) into the gas phase.
DOI: 10.1002/rcm.1290050303
发表时间: 1991-03-01
影响因子: 2
作者:
LOO, JA;LOO, RRO;SMITH, RD
通讯作者: SMITH, RD
DOI: 10.1021/ac00025a015
发表时间: 1992-01-01
影响因子: 7.4
作者:
LOO, JA;LOO, RRO;SMITH, RD
通讯作者: SMITH, RD
DOI: 10.1016/j.ijms.2006.03.016
发表时间: 2006-07-01
影响因子: 1.8
作者:
Baker, Erin Shammel;Bernstein, Summer L.;Bowers, Michael T.
通讯作者: Bowers, Michael T.
钾溶液中 DNA G 四链体的非变性电喷雾质谱分析。
DOI: 10.1007/s13361-014-0890-3
发表时间: 2014-07
影响因子: 3.2
作者:
Marchand, Adrien;Gabelica, Valerie
通讯作者: Gabelica, Valerie