Pump table

Sometimes the speed of the pump is specified by the purchaser. Flowever, this should not be done unless there is experience to indicate the value of this, such as packing life, corrosion/erosion at high speeds, and suspended particles as the limitation on speed may prevent the manufacturer from selecting a smaller pump. In some cases it must be recognized that high heads cannot be reached at low speeds in single stage pumps. Table 3-7 presents sug-... 

In contrast to the SSRIs, venlafaxine has an ascending dose-response curve consistent with its sequential, concentration (and hence dose) dependent effects on serotonin and NE uptake pumps (Table 7-9). At 225 mg per day, the magnitude of the antidepressant effect is 50% higher than that seen with the SSRIs. Also consistent with its dual mechanism of action at higher concentrations, venlafaxine at a dose of 225 mg per day produced an antidepressant response in hospitalized patients with melancholia superior to both placebo and fluoxetine (114, US, 116, H7, H8, H9, 120, 121, 122, 123, 124,125, 126,127, 128,129, 130,131, 132,... 

The majority of carotenoids tested in this study increased the rhodamine accumulation of the Colo 320 MDR/MRP human colon cancer cells by the inhibition of the MDR1-mediated efflux pump activity. The cell size and the intracellular or sub cellular structures of carotenoid-treated cells were not modified during the short period of the flow cytometric experiments. The mean fluorescence and the shift of the fluorescence peak increased to various extents in the presence of carotenoids. The most active compounds were antheraxanthin, violeoxanthin, apple peel phytox-anthin, lutein and violaxanthin, while the luteoxanthin, neoxanthin and /f-cryploxanlhin were only moderate in their inhibition of the efflux pump (Tables 7, 8). 

We excavated the nest of a Trinervitermes species and Cubitermes species and took the nests to the laboratory for sampling using the teflon enclosure technique [19]. All the CO2 measurements were done using the Matheson CO2 detector tubes and Matheson pump. Table 3 gives the... 

Obtaining optimum asymmetric induction in the cycloaddition of methacrolein with the catalyst prepared from the VAPOL ligand involved the slow addition of the dienophile. Initially 10 % of the dienophile was added, the remainder being added over 3 h with a syringe pump (Table 15). If the dienophile was added in one portion asymmetric induction in the cycloadduct 3 at the end of the reaction was only 87.7 % ee (Table 15, entry 3). The amount of asymmetric induction was also found to be a function of concentration, and increased from 91.4 to 97.8 % ee when the concentration of dienophile was reduced from 1.0 to 0.05 m (Table 15, entries 1 and 2). The amount of induction was also found to be function of the substrate-to-catalyst ratio— selectivity was lower at higher ratios (Table 15, entries 1 and 3). Finally, it was observed that as5nmnetric induction was less at the early stages of the reaction that at the end. When the reaction was stopped after 30 % completion the induction was 81.1 % ee whereas at 100 % completion it was 87.7 % ee (Table 15, entries 3 and 5). 

When one wishes to change fractions using the fraction cutter described above, the stopcock B on the cutter is turned so that the manostat is still connected to the system but is not connected to the receiver. Stopcock A is turned 180° to connect the auxiliary position of the fraction cutter with that of the pump. Stopcock Sj on the pump table is turned to connect arms x and y and disconnect 2. Air is bled into the system through S3, and the flask is changed. The new... 

Leaks at various points, such as the column, fittings, the detector, the injection valve, or the pump. Table 5 summarizes their causes and solutions. 

Using the affinity law (Equation 6-76), the corresponding values for the head at varying flow rates are shown in Table 6-8. The computer program PROG63 calculates both the brake horsepower and pump efficiencies of the 6- and 8-inch pumps. Tables 6-9 and 6-10 show the input data and the computer results of these pumps. The characteristic curves are shown in Figure 6-6. 

The columns are operated at 10-60 times higher mobile-phase velocity by the use of high-pressure metering pumps (Table 3.8). 

The pump degradation testing requirements are described in RTM-5005 (Reference 23). Pumps tested are listed in the pump tables of section IV of the I T plan. 

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