Base mass

APPLICATION OF LASER BASED MASS-SPECTROMETRIC METHODS FOR TRACE ANALYSIS OF SYNTHETIC AND NATURAL CRYSTALS... 

Laser based mass spectrometric methods, such as laser ionization (LIMS) and laser ablation in combination with inductively coupled plasma mass spectrometry (LA-ICP-MS) are powerful analytical techniques for survey analysis of solid substances. To realize the analytical performances methods for the direct trace analysis of synthetic and natural crystals modification of a traditional analytical technique was necessary and suitable standard reference materials (SRM) were required. Recent developments allowed extending the range of analytical applications of LIMS and LA-ICP-MS will be presented and discussed. For example ... 

L. Van Vaeck and R. Gijbels. in Microbeam Analysis-1989 (P. E. Russell, ed.) San Francisco Press, San Francisco, xvii, 1989. A synopsis of laser-based mass spectrometry anal)n ical techniques. 

The MM-1 is a linear quadrupole-based mass spectrometer with electron impact (El) ionization.4 An ion pump provides the required vacuum. By today s standards, its size (0.34m3/12.2ft3) and weight (177kg/3901bs) are... 

Moritake S, Taira S, Sugiura Y, et al. Magnetic nanoparticle-based mass spectrometry for the detection of biomolecules in cultured cells. J. Nanosci. Nanotechnol. 2009 9 169-176. 

HERRON, N.R., DONNELLY, J.R., SOVOCOOL, G.W., Software-based mass spectal enhancement to remove interferences from spectra of unknowns, J. Am. Soc. Mass Spectrom., 1996,7, 598-604. 

Particle-based mass transfer Peclet number, 25 294. See also Peclet numbers (Pe)... 

The features of the monoHthic integrated sensor systems have not yet been fully exploited. The almost linear relationship between input reference voltage and microhotplate temperature renders the systems suitable for applying any temperature modulation protocol. Due their compatibility with other CMOS-based chemical sensors the microhotplates can be also combined with, e.g., polymer-based mass sensitive, calorimetric or capacitive sensors. The co-integration with such sensors can help to alleviate problems resulting from cross-sensitivities of tin-oxide based sensors to, e.g., volatile compounds such as hydrocarbons. A well-known problem is the crosssensitivity of tin oxide to humidity or ethanol. The co-integration of a capacitive sensor, which does not show any sensitivity to CO, could help to independently assess humidity changes. 

T. J., Rosner, P.J. Strategic use of afGnity-based mass spectrometry... 

Many investigators base mass transfer coefficients upon the area of the volume-equivalent sphere, especially for oscillating drops ... 

Finally, in Fig. 3.4-12 [24], a comparison is given for the overall, gas-based, mass transfer coefficient for several liquid-to-gas and solid-to-gas packed beds and column systems. In Fig. 3.4-12, for a given data point, the vertical distance up to the Tan et al. [27] correlation (which is for a solid-to-fluid boundary layer) would provide a measure of the liquid-side mass-transfer resistance associated with the liquid. This is so because amount of the large gas... 

Fig. 3.4-12. Comparison of the overall, gas-based, mass-transfer coefficient for several liquid-to-gas and solid-to-gas packed beds and column systems [24] with permission of Pergamon Press...

I would like the reader to stop and ponder something for a few minutes. If, in theory, an athlete controlled proportionately all anabolic, androgenic, and catabolic hormones and enzymes with dominance upon protein based tissue growth, then supplied a correct ratio of amino acids, carbohydrates, and fats, the athlete would increase in protein based mass at a rate of body weight x 1.818 g daily. So a 250 pound bodybuilder in theory could add 454.5g daily in lean tissue. Though some or most would not agree, I... 

High-Resolution LC-MS-Based Mass Defect Filter Approach Basic Concept and Application in Metabolite... 

HIGH-RESOLUTION LC-MS-BASED MASS DEFECT FILTER APPROACH... 

Zhu, M., Zhang, H., Yao, M., Zhang, D., Ray, K., and Skiles, G. L. (2004). Detection of metabolites in plasma and urine using a high resolution LC/MS-based mass defect filter approach Comparison with precursor ion and neutral loss scan analyses. Drug Metab. Rev. 36 (Suppl. 1) 43. 

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