Can Nonpolar Polyisobutylenes be Measured by Electrospray Ionization Mass Spectrometry? Anion-Attachment Proved to be an Appropriate MethodESI-MSPolyisobutylenesNitrated adduct ionsChlorinated adduct ionsTandem mass spectrometryPolyisobutylenes (PIBs) with different end-groups including chlorine, exo-olefin, ...
Fatty acids can produce ions that are (a) highly charged at the tail. (b) nonpolar. (c) amphipathic. (d) hydrophobi The backbone of a phospholipid is which of the following? A) Glycerol. B) Cholesterol. C) Fatty acid chain. D) Triacylglycerol. E...
Explain why the conductivity of 0.077 M Na2SO4(aq) is greater than that of 0.077 M KF(aq). a. Ion size can play a big part in electrical conductivity. Some or all of the ions in KF are much smaller than the ions in Na2SO4. Thus, the ions in Na2SO4 are bet ...
Secretagogues (i.e., lubiprostone, linaclotide, and plecanatide) increase intestinal chloride secretion by activating channels on the apical enterocyte surface, causing net efflux of ions and water into the intestine. To maintain electroneutrality, sodium is also secreted into the intestine; water ...
Can molecular alkali halides be photodesorbed from metallic and nonpolar dielectric surfaces? Can molecular alkali halides be photodesorbed from metallic and nonpolar dielectric surfaces?Homogeneous immunoassayimmunoassay, homogeneous... John,A.,Tucker,... - 《Surface Science Letters》 被引量: 0发表:...
Embedding of tryptophan in the nonpolar core of globular proteins results in the characteristic blue shift of its fluorescence spectrum. In other words, the position of the tryptophan fluorescence spectrum, being sensitive to the polarity of the environment, allows us to study protein unfolding[29] ...
Major fragment ions appeared at m/z 239 (M+-CH3, 90%) and 73 ([Si(CH3)3]+, 100%). The mass spectrum of trimethylsilylated compound II showed a molecular ion at m/z 255 (M+, relative intensity 25.7%). Major fragment ions appeared at m/z 240 (M+-CH3, 59.9%), 182 (M+-Si...
(Pollegioni et al.2015). In the second stage, a single O2molecule joins the T3 and T4 copper cations, rapidly transforming into a transition peroxide by obtaining two individual electrons from both T3 ions. However, this condition does not persist long since oxygen falls apart into an oxy...
Which of the following statements is correct? A. Solutes increase the freezing point of water. B. Solutes decrease the freezing point of water. C. Only ions can dissolve in the body water. D. Increasing the concentration of water E. Will increase the ...
cations at the same time in a crystalline-defined mixed state. It is also possible for the aforementioned anions and cations in the crystal lattice to be combined with further ions, not mentioned here. Suitable acid-reacting activators are the following compounds (without claim to exhaustiveness):...