1)b-Phellandrene (2) Toluene (3) Iso-orientin (4) Nonane (5) 6-C-p-hydroxybenzoylvitexin (6) Ethylbenzene (7) 8-C-p-hydroxybenzoylvitexin (8) Benzene1,3-dimethyl (9) Citrullol (10) 2-Propenoic acid, butyl ester
(11) Elatericin B (12) Undecane (13) a-sphinosterol (14) Dodecane (15) Octadecane (16) a-elaterin (17) Hentriactone (18) Tridecane (19) 9,12-Octadecadienoicacid[7,7] (20) Elaterin (21) n-Hexadecanoic acid (22) 9,12-Octadecadienoicacid[7,7]
Changes in brain serotanin and 5-hydroxyindalacetic acid levels induced by 2,4-dichlorophenoxyacetic butyl ester
The mean (SD) retention times of the butyl ester
derivatives of L-arginine, ADMA, and SDMA, respectively, were 1.
Formamidene butyl esters
of amino acids afford more stable ions than the corresponding butyl esters
during electrospray ionization-MS/MS analysis (6).
The method is based on chromatographic separation of MMA from SA and selective fragmentation of MMA butyl ester
The semiautomated preparation of butyl ester
derivatives of acylcarnitines and amino acids from blood spots consisted of a simple solvent extraction and derivatization procedure that takes ~2.
Relevant AC butyl esters
were extracted and derivatized from 1/3 inch dried blood samples and were analyzed using a protocol described by Schulze et al.
During the derivatization process butyl esters
of acylcarnitines are formed.
Propyl and butyl esters
were obtained only under acid catalysis.
We report the validation of a high-throughput method for the analysis of acylcarnitine butyl esters
in infants with these disorders and include the results from a prospective study of the occurrence of PA and MMA in nearly 1 million newborns screened using MS/MS.