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Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Anal+Bioanal+Chem 2015 ; 407 (17): 5189-98 Nephropedia Template TP
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Rapid evaluation of 25 key sphingolipids and phosphosphingolipids in human plasma by LC-MS/MS #MMPMID25749796
Basit A; Piomelli D; Armirotti A
Anal Bioanal Chem 2015[]; 407 (17): 5189-98 PMID25749796show ga
We report on a new, sensitive, and fast LC-MS/MS method for the simultaneous determination of 25 key sphingolipid components in human plasma, including phosphorylated sphinganine and sphingosine, in a single 9-min run. This method enables an effective and high-throughput coverage of the metabolic changes involving the sphingolipidome during physiological or pathological states. The method is based on liquid?liquid extraction followed by reversed-phase LC-MS/MS. Exogenous odd-chain lipids are used as cost-effective but reliable internal standards. The method was fully validated in surrogate matrix and naive human plasma following FDA guidelines. Sample stability and dilution integrity were also tested and verified.Electronic supplementary material: The online version of this article (doi:10.1007/s00216-015-8585-6) contains supplementary material, which is available to authorized users.