𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Determination of micelle mass by electrospray ionization mass spectrometry

✍ Scribed by Daisuke Nohara; Takatomo Kajiura; Koji Takeda

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
110 KB
Volume
40
Category
Article
ISSN
1076-5174

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

By electrospray ionization (ESI) mass spectrometry, micelle solutions of sodium cholate were investigated in detail in the presence and absence of ethanol. The average aggregation number could be evaluated from the spectra acquired under conditions where soft collisions adequate to measure the micelle solution were induced, and the value agreed well with that obtained previously by other methods. From the dependence on ethanol content, it was also found that the average aggregation number in aqueous solution without organic solvent could be reliably estimated. The ESI method proved to be a useful tool for determining the micelle mass in the original aqueous phase. Copyright Β© 2005 John Wiley & Sons, Ltd.

πŸ“œ SIMILAR VOLUMES

Electrospray ionization mass spectrometr
Electrospray ionization mass spectrometry of metalloporphyrins
✍ Vandell, Victor E.; Limbach, Patrick A. πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 373 KB πŸ‘ 2 views

The magnesium, nickel, copper, zinc and vanadium metalloporphyrins from octaethylporphyrin, etioporphyrin I and tetraphenylporphyrin were characterized using electrospray ionization mass spectrometry (ESI-MS). The ion abundance of each of the porphyrins present in binary mixtures was monitored as a

Electrospray ionization mass spectrometr
Electrospray ionization mass spectrometry of ginsenosides
✍ Xiu-Sheng Miao; Chris D. Metcalfe; Chunyan Hao; Raymond E. March πŸ“‚ Article πŸ“… 2002 πŸ› John Wiley and Sons 🌐 English βš– 481 KB

Ginsenosides R(b1), R(b2), R(c), R(d), R(e), R(f), R(g1), R(g2) and F(11) were studied systematically by electrospray ionization mass spectrometry in positive- and negative-ion modes with a mobile-phase additive, ammonium acetate. In general, ion sensitivities for the ginsenosides were greater in th

Determination of 8-Hydroxydeoxyguanosine
Determination of 8-Hydroxydeoxyguanosine in Biological Tissue by Liquid Chromatography/Electrospray Ionization-Mass Spectrometry/Mass Spectrometry
✍ Jose Serrano; Carlos M. Palmeira; Kendall B. Wallace; Douglas W. Kuehl πŸ“‚ Article πŸ“… 1996 πŸ› John Wiley and Sons 🌐 English βš– 340 KB πŸ‘ 2 views

A method based on liquid chromatography (LC) combined with electrospray ionization tandem mass spectrometry for the analysis of the frequency of formation of 8-hydroxydeoxyguanosine (8OHdGuo), a biomarker of oxidative damage to DNA, has been developed. This analytical technique has the advantage ove

The possibility of the direct measuremen
The possibility of the direct measurement of micelle weight by electrospray ionization mass spectrometry
✍ Daisuke Nohara; Takashi Ohkoshi; Tomoya Sakai πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 54 KB πŸ‘ 2 views

Measurement of the molecular weight of micelles, which are characteristic aggregates of molecules, was conducted using electrospray ionization mass spectrometry (ESI-MS). Micelle solutions were prepared by dissolving octyltrimethylammonium bromide [OTAB: C 8 H 17 N(CH 3 ) 3 Br] in water alone, witho