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21.
Robert B. Cody Jun Tamura Jeffrey W. Finch Brian D. Musselman 《Journal of the American Society for Mass Spectrometry》1994,5(3):194-200
Array detection was compared with point detection for solutions of hen egg-white lysozyme, equine myoglobin, and ubiquitin analyzed by electrospray ionization with a magnetic sector mass spectrometer. The detection limits for samples analyzed by using the array detector system were at least 10 times lower than could be achieved by using a point detector on the same mass spectrometer. The minimum detectable quantity of protein corresponded to a signal-to-background ratio of approximately 2∶1 for a 500 amol/μL solution of hen egg-white lysozyme. However, the ultimate practical sample concentrations appeared to be in the 10–100 fmol/μL range for the analysis of dilute solutions of relatively pure proteins or simple mixtures. 相似文献
22.
Light scalar top quarks with a small mass difference with respect to the neutralino mass are of particular cosmological interest.
This study uses an iterative discriminant analysis method to optimize the expected selection efficiency at the international
linear collider (ILC).
相似文献
23.
C.A. Acua J. Radman J.A. Finch 《Colloids and surfaces. A, Physicochemical and engineering aspects》2008,330(2-3):112-115
Bubbles blown in surfactant (frother) solution reveal surface flows attributed to gravity drainage and opposing Marangoni Effect. A technique is introduced to visualize the flows and estimate trajectory velocity. The flow pattern and velocity depend on frother type (pentanol vs. a polyglycol) and concentration but no correlation with surface tension was found. The relevance of the observations to the action of frother in flotation is briefly discussed. 相似文献
24.
Alexander John Finch 《Pramana》2007,69(5):703-706
The results presented at this conference in the γγ technology group are described.
相似文献
25.
Roger F. Newton Derek P. Reynolds Mark A.W. Finch David R. Kelly Stanley M. Roberts 《Tetrahedron letters》1979,20(41):3981-3982
Aqueous hydrofluoric acid is an excellent reagent for the removal of -butyldimethylsilyl protecting groups. 相似文献
26.
An irreversible phase change, ΔH (transition) = 5.44 ± 0.11 kcal mol?1 at 337.1 ± 0.3 K has been confirmed in L-(+)-cysteine hydrochloride monohydrate. Phase transitions resulting from thermal pretreatment are also reported and discussed. 相似文献
27.
Rayleigh and Lamb waves have been excited in scale model railway wheels by an ultrasonic source located on the wheel tread. Simulated flaws in treads and plates have been located. 相似文献
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