MALLS

Esters and amines react mall molar ratio to give amides No acidic product is formed from the ester and so no additional base is required... 

A. L. Brooks and co-workers. Design andFabrication of S mall and Earge Bore Bailguns, UCRL-84876, Lawrence Livermore National Lab, Livermore, Calif., 1984. 

R. J. Andersen, Department of Chemistry, 2036 Main Mall, University of British Columbia, Vancouver, British Columbia V6T IZl, Canada... 

Ammonia, Anhydrous Cast Iron Cast Iron Carbon Steel Carbon Steel Mechanical Mall. Iron NOTE ... 

Ethylene Ethylene Dichloride Cast Steel Cast Iron Carbon Steel Cast Iron Carbon Steel Steel Carbon Steel K Monel Mechanical Mechanical Cast Iron Mall. Iron K Monel ... 

Methyl Chloride Cast Iron Cast Iron 18-8 18-8 Mechanical Mall. Iron ... 

Water, River Cctst Iron Bronze 18-8 Stainless Steel Bronze Mechanical Cast Iron Mall. Iron... 

Hi-tilcy. i. J, uiid H. Kunamoto, 1981, Reliability Engiru ering and Risk Assessment, PrentiLL- Mall. Englewood Cliffs, NJ. 

This topic has been reviewed [2, pp 94, 100-111, 130-134] All of the standard approaches to the synthesis of a compound like methyl 2-fluorostearate from methyl 2-bromostearate result mall yield of the 2-fluoro ester and the unsaturated esters. Although silver fluoride is not a new reagent, its use moist in wet acetonitrile to convert methyl 2-bromostearate to its fluoro ester is a departure from the traditional set of anhydrous conditions (Procedure 6, p 194) [71] In contrast, silver tetrafluoroborate converts a-chloroketones to their respective fluoroketones under anhydrous conditions. The displacement of less activated halogen groups by silver tetrafluoroborate to form their respective fluorides is novel Although silver tetrafluoroborate could not be used to convert an aliphatic terminal dichloromethyl or trichloromethyl group to its corresponding fluoro derivative, it is an effective fluorine source in other situations [72] (Table 8)... 

Leis, FI J, Gleispacj,H Malle, E Rapid Commun Mass Spectrom 1988, 2, 263... 

FIGURE 2.4 Calibration curve of dextran on Sephacryi S-300 SF. Calibration curves were calculated from one chromatogram of a broad MWD reference sample using data for the molecular mass distribution as obtained by a calibrated gel filtration column ( , upper curve) and on-line MALLS ( ). The calibration curve was found useful for estimating the size of globular proteins. [Reproduced from Hagel et al. (1993), with permission.]... 

FIGURE 6.4 Comparison of Shodex GPC UT column and conventional-type column. Column Left Shodex GPC UT-806M X 2, 8 mm i.d. X 300 mm X 2. Right Conventional type column X 2, 7.8 mm i.d. X 300 mm x 2. Eluent 0.1% BHT in ODCB. Flow rate 1.0 mL/min. Detector Rl, MALLS (multi-angle laser light scattering detector). Column temp. I45°C. Sample High-density polyethylene. 

In the ease of Ligure 6.39 (page 211), similar ehromatograms were apparently obtained with eaeh eolumn. However, when the elution patterns were examined with a MALLS, it was revealed that a kind of adsorption oeeurred in the ease of GF-710 HQ, and GPC elution was not eondueted properly. 

Synthetic, nonionic polymers generally elute with little or no adsorption on TSK-PW columns. Characterization of these polymers has been demonstrated successfully using four types of on-line detectors. These include differential refractive index (DRI), differential viscometry (DV), FALLS, and MALLS detection (4-8). Absolute molecular weight, root mean square (RMS) radius of gyration, conformational coefficients, and intrinsic viscosity distributions have... 

Molecular weights for fully hydrolyzed and partially hydrolyzed grades of PVA (expressed in terms of 4% solution viscosity) from aqueous SEC-MALLS are summarized in Table 20.6. M values range from less than 20,000 Da for a 3 centipoise (cP) viscosity grade to over 230,000 Da for a super-high viscosity... 

TABLE 20.6 Molecular Weight of PVA from Aqueous SEC-MALLS Using TSK-PW Columns... 

TABLE 20.10 SEC-MALLS Data for Cationic Poly(2-vinyl pyridine) Standards Using MALLS and CATSEC Columns°... 

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