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Washing cycles

Miscellaneous Applications. Polyamides, prepared from polyamines and neodecanoic acid, are used as wash-cycle antistatic agents (qv)... [Pg.106]

For new installations the first washing cycles result in the removal of fine sand as well as all the other materials usually undesirable in the filter mass, such as... [Pg.259]

Since for constant pressure filtration, the tjV versus Vdata can be linearized, as shown in Figure 4.15, the resistances of cake and cloth plus cake held up in cloth can be determined. The former value is usually fairly reproducible while the latter is often variable, being particularly sensitive to start up conditions when cloth blinding occurs. Such tests can be rerun at different pressures and the extent of cake compressibility determined. Similarly, a wash cycle can be introduced. [Pg.97]

Air scouring is often used with larger filters to improve the cleaning efficiency. The wash cycle is normally a reduced flow backwash in conjunction with air scouring, at the rate of 2 cu ft air/sq ft bed surface area/min, followed by a full-flow rinse with filtered water to resettle the bed. [Pg.323]

P 10] The reaction was performed on 100 mg of Merrifield resin [75]. Absolute tetrahydrofuran was used as solvent and 4 h of agitation was employed. No other details are given in the reference. Generally, about 2 min were needed to perform a complete washing cycle. [Pg.431]

The relevant parameters to trigger the release of actives can be the temperature or pH-value of the washing liquor, the salt concentration or even the presence of water. In some automatic dishwashing tablets that have been recently introduced, for instance, the difference in temperature of the main wash cycle and the rinse cycle [89], or the difference in the pH-values of these two stages is utilized to trig-... [Pg.109]

In the case of a temperature-sensitive product the rinse aid is embedded into a substance e.g. a wax with a melting point higher than the temperature of the main wash cycle (e.g. 50°Cor55°C) but lower than the temperature of the rinse cycle that is most likely above 65 °C. Thus, the encapsulation with a melting point between 60 °C and 65 °C resists the conditions in the main wash cycle but melts in the rinse cycle and releases the rinse aid. This process is shown in the lower part of Fig. 4.9. [Pg.111]

Another product has basically a built-in pH sensor. In this case the rinse aid is encapsulated into a material that is solid and insoluble in water at an alkaline pH-value. Thus it is able to withstand the conditions in the alkaline main wash cycle. When the pH-value decreases, due to the dilution of the washing liquor with pure water in the rinse cycles, the sensor encapsulation material becomes soluble and releases its contents [93, 94]. [Pg.111]

The total amount of required rinse water relates to the amount of absorbed water in the main wash cycle. [Pg.194]

Most manufacturers of dissolution testing devices offer semi-automated systems that can perform sampling, filtration, and UV reading or data collection. These systems automate only a single test at a time. Fully automated systems typically automate entire processes including media preparation, media dispensing, tablet or capsule drop, sample removal, filtration, sample collection or analysis (via direct connection to spectrophotometers or HPLCs), and wash cycles. A fully automated system allows automatic performance of a series of tests to fully utilize unused night and weekend instrument availability. [Pg.271]

Walsh We have gone through several repetitive wash cycles and quantified the calmodulin release. It is barely detectable. The TFP is actually competing directly with MLCK for the same site on calmodulin, so I think it is simply a question of concentration. The TFP concentration is 0.4 mM. [Pg.50]

The equilibrium between enzyme and inhibitor should be obtained fast and upon dilution with water in the wash cycle the inhibitor should release from the protease immediately. [Pg.154]

Figure 6.3 compares nonspecific protein adsorption on a new HIC column vs. the same column after 50 wash cycles. In each case the column was equilibrated, injected with 10 pg of purified IgG, washed, eluted in a linear gradient, and then cycled four more times for a total of five consecutive runs. Eluted peak height was fairly consistent on the new column. Results on the wash-cycled column indicated that significant amounts of protein were being adsorbed. The effect diminished with successive injections so that by the fourth injection, performance was roughly on par with the new column. However, by this time the column had adsorbed about 15 ug of protein. [Pg.84]

Figure 6.3 Nonspecific protein adsorption as a result of column degradation. White circles indicate eluted column peak heights of a new column. Black diamonds indicate eluted peak heights after the column was treated with 50 wash cycles. See text for discussion. (Data from P. Gagnon, 1997, Validated Biosystems Quarterly Resource Guide for Downstream Processing, 2(1), 1, http //www.validated.com/revalbio/library.html.)... Figure 6.3 Nonspecific protein adsorption as a result of column degradation. White circles indicate eluted column peak heights of a new column. Black diamonds indicate eluted peak heights after the column was treated with 50 wash cycles. See text for discussion. (Data from P. Gagnon, 1997, Validated Biosystems Quarterly Resource Guide for Downstream Processing, 2(1), 1, http //www.validated.com/revalbio/library.html.)...
The collected oocytes need to be individually isolated from the connective ovarian tissue and the layer of follicular cells that surround each oocyte (Goldin, 1992). For a detailed description, see Yao et al. (2000). Briefly, the excised ovarian lobe is washed in MBM and dissected using sterile forceps into smaller sections containing approximately 5-10 oocytes each. The sectioned clumps of oocytes are treated with MBM supplemented with 2 mg/mL type I collagenase (Worthington, Lakewood, NJ) for 2 h at room temperature with constant shaking to separate the oocytes from the follicular cell layer. The oocytes are subsequently washed five times with a BSA solution (bovine serum albumin, 1 mg/mL in MBM), followed immediately by five wash cycles in MBM. [Pg.329]


See other pages where Washing cycles is mentioned: [Pg.488]    [Pg.383]    [Pg.526]    [Pg.526]    [Pg.526]    [Pg.532]    [Pg.536]    [Pg.130]    [Pg.294]    [Pg.145]    [Pg.370]    [Pg.259]    [Pg.260]    [Pg.90]    [Pg.641]    [Pg.901]    [Pg.355]    [Pg.342]    [Pg.406]    [Pg.85]    [Pg.88]    [Pg.104]    [Pg.110]    [Pg.137]    [Pg.193]    [Pg.193]    [Pg.194]    [Pg.196]    [Pg.197]    [Pg.209]    [Pg.209]    [Pg.67]    [Pg.69]    [Pg.85]    [Pg.87]    [Pg.430]   
See also in sourсe #XX -- [ Pg.227 ]




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