Yields percentage

Calculated on the basis of recovered quinoline to avoid confusion with yields percentage conversions are given in parentheses. [Pg.187]

The mass percentage of a solution is the mass of the solute divided by the mass of the solution and then multiplied by 100% to yield percentage. [Pg.173]

Commercial 40% (w/w) peracetic acid is available from the Becco Sales Corporation, Buffalo 7, New York. The use of a 3.3 molecular proportion of the peracid results in slightly higher and more consistent yields of product than when the theoretical 3.0 proportion is employed. The procedure gives the same yield (percentage) of product when using proportionately smaller quantities of reactants. [Pg.10]

Table 13.1 Effect of catalyst on yield (percentage of theoretical maximum)...

To determine a defined biological response (e.g., IC50), a dose-response curve is first established. Usually six to eight concentrations are tested to yield percentages of activity or inhibition between20 and 80%, the linear portion of the curve. Using the curves, the dose responsible for an established effect can easily be determined. This procedure is meaningful if, at the time the response is measured, the system is at equilibrium, or at least under steady-state conditions. [Pg.8]

Run X F- Solvent Time (h) Yield (%) Percentage ee (Coniig.) Chirality transfer (%)... [Pg.504]

Once loading studies have been performed, scale-up can take place. First, the amount of feed material needed to yield the desired quantity of impurity must be determined. An FIPLC assay or other chemical assay can be used to determine the potency of the feed with respect to the desired impurity. If an assay is not available, the impurity potency can be approximated from analytical peak collection. Additionally, an estimation of the recovery yield (percentage of impurity present in feed that is recovered from the separation) can be obtained from a mass balance on the high-loading peak collection experiments. Off-cuts, fractions collected from the column that contain the impurity but do not meet purity, can often be recycled into the feed for the next run, increasing the recovery yield. The required preparative column volume can then be calculated as follows ... [Pg.246]

Commodity With Treatment Without Treatment Increased Yield (Percentage)... [Pg.7]

Route Name Minimum Number of Passes1-1-1 Sequence of Billet Rotations Between Passes After Pass One Four Pass Material Yield Percentage Increase in Particle Surface Area After One, Two, and Four Passes ... [Pg.92]

Important remark Proper separation of the fuchsone from its synthesis medium (CH3SO3H) is a key element ensuring the adequate oxidation of this product by H202 as the yields percentage will not exceed 30%, with a HQ/PC ratio- 0,5 in the presence of CH3SO3H. This demonstrates that the fuchsone salt does not react with H202 and that non-identified secondary reactions occur. [Pg.365]

A more rapid method to obtain information about the labelling yield (percentage of lipophilic Tc-exametazime) has found wide acceptance in nuclear medicine (Ballinger et al. 1988). Several solvents (ethyl acetate, chloroform, n-octanol) have been employed for the extraction of the lipophilic Tc-HMPAO complex. Labelled impurities remain in the aqueous phase. [Pg.256]

The yield percentage of each fiaction from liquefaction is defined as... [Pg.507]

Ketone Time (h) Total yield (%) Percentage cis-.trans... [Pg.411]

Ketone Reagent (molar equiv) Reaction time (days) Yield (%) Percentage Observed ee Correction Absolute configu- ration... [Pg.440]

Entry Ketone Time Yield Percentage ee Absolute... [Pg.441]

RCHOH CH2NH2 Percentage yield Percentage ee Configuration... [Pg.452]

Entry Starting material THF derivative Temp for 9-BBNOTf introduction (°C) Product yield (%) Percentage de... [Pg.567]

Solvent-free conditions were preferable [77] due to several benefits. The reaction runs safely at atmospheric pressures with increased yield percentage. Here, the radiations are directly absorbed by the reactants thus increasing the yield as well as the purity of the product. The Diels-Alder cycloaddition of vinylpyrazoles under microwave irradiation was carried out by Diaz-Ortiz et al. [78]. It was observed that poor reactive dienophiles like phenyl propiolate do not react when heated conventionally but were found to react under microwave heating (Scheme 11.25). [Pg.346]

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