Direct analysis of urines of newborn babys by liquid ionization mass spectrometry.
نویسندگان
چکیده
منابع مشابه
Direct analysis of liquid samples by desorption electrospray ionization-mass spectrometry (DESI-MS).
Desorption electrospray ionization-mass spectrometry (DESI-MS) was evaluated for the direct analysis of liquid samples. Several interesting results were found. First, in contrast to the previous DESI analysis of dried solid samples that was limited to proteins with MW < or = 25 kDa (Anal. Chem. 2007, 79, 3514), bovine serum albumin (BSA, 66 kDa) was successfully ionized from solutions by DESI w...
متن کاملCharacterization of glycosphingolipids by direct inlet chemical ionization mass spectrometry.
Permethylated derivatives of cerebrosides and ceramide di-, tri-, tetra-, and penta-hexosides were analyzed by the direct inlet ammonia chemical ionization (CI) mass spectrometry. In the CI mass spectra, the fragment ions produced by the loss of methanol from the protonated molecular ion were observed in all of the glycosphingolipids. Other fragment ions due to the cleavage of glycosidic moiety...
متن کاملCharacterization of gangliosides by direct inlet chemical ionization mass spectrometry.
Permethylated derivatives of N-acetylneuraminic acid-containing GM3, N-glycolylneuraminic acid-containing GM3, GD1a, and GD1b, were analyzed by direct inlet ammonia chemical ionization (CI) mass spectrometry. These compounds were found to yield simple fragmentations, prominent fragment ions in the high mass region, and characteristic fragment ions corresponding to the cleavage of glycosidic lin...
متن کاملForensic DNA fingerprinting by liquid chromatography-electrospray ionization mass spectrometry.
The determination of the molecular mass of a DNA sequence has several benefits over conventional fragment-length analysis that are advantageous to the forensic field: (i) sequence variation is captured that increases the power of discrimination compared with that obtained by conventional fragment-length analysis. First experiments showed that this increase makes up to 20%-30% for STR analysis. ...
متن کاملMonosaccharide Analysis of Dendrobium moniliforme Polysaccharides by High Performance Liquid Chromatography/Electrospray Ionization Mass Spectrometry
To obtain monosaccharide components information of Dendrobium moniliforme polysaccharides, a HPLC-ESI-MS method was proposed. The crude polysaccharides were extracted and purified from D. moniliforme as samples (DMP). Then, the polysaccharides were hydrolyzed with trifluoroacetic acid (TFA) and derivated by 1-phenyl-3-methyl-5-pyrazolone (PMP). PMP-labeled mixture of monosaccharides were separa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Mass Spectrometry Society of Japan
سال: 1989
ISSN: 1340-8097,1880-4225
DOI: 10.5702/massspec.37.79