Separation and quantitation of phospholipid hydroperoxide families using high-performance liquid chromatography with mercury cathode electrochemical detection.

Separation and quantitation of phospholipid hydroperoxide families using high-performance liquid chromatography with mercury cathode electrochemical detection.
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使用汞阴极电化学检测的高效液相色谱法分离和定量磷脂氢过氧化物家族。

DOI:
10.1016/j.ab.2005.04.005
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发表时间:
2005
期刊:
Analytical biochemistry.
影响因子:
--
通讯作者:
Girotti,AlbertW
Girotti,AlbertW
中科院分区:
--
文献类型:
--
作者:
Korytowski,Witold;Niziolek,Magdalena;Girotti,AlbertW

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高效液相色谱-汞阴极电化学检测(HPLC-EC(Hg))用于分离和定量各种磷脂氢过氧化物(PLOOH)家族。在所使用的条件下,实现了四个主要的生物相关PLOOH类的基线分离。PLOOH浓度至少为1 nmol时,响应呈线性,检测限在亚皮摩尔范围(0.1- 0.5 pmol)。应用这种方法,光动力应激小鼠白血病细胞和线粒体从这些细胞中分离,我们确定和定量PLOOH来源于磷脂酰胆碱,磷脂酰乙醇胺,磷脂酰丝氨酸,和心磷脂。在高灵敏度,特异性和可靠性方面,HPLC-EC(Hg)在复杂生物系统中确定PLOOH的所有其他现有技术中具有明显的优势。
High-performance liquid chromatography with mercury cathode electrochemical detection (HPLC–EC(Hg)) was used to separate and quantify various phospholipid hydroperoxide (PLOOH) families. Under the conditions used, baseline separation of four major biologically relevant PLOOH classes was achieved. Responsiveness was linear up to at least 1nmol of PLOOH with a detection limit in the subpicomolar range (0.1–0.5pmol). Applying this method to photodynamically stressed murine leukemia cells and mitochondria isolated from these cells, we identified and quantified PLOOHs derived from phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, and cardiolipin. In terms of high sensitivity, specificity, and reliability, HPLC–EC(Hg) has a clear advantage over all other existing techniques for determining PLOOHs in complex biological systems.
DOI: 10.1016/s0021-9673(01)82933-2
发表时间: 1972-01-01
期刊: JOURNAL OF CHROMATOGRAPHY
影响因子: --
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