Injections concentrated liquids

Both concentric and stacked fluid layer arrangements, corresponding to difler-ent versions of separation mixers, were developed, allowing either a drop- or streamlike injection of liquids in a reaction tube attached to the micro mixer [48],... 

T, tablet C, capsule C-SR, controlled- or sustained-release I, injection L, liquid solution, elixir, or suspension LC, liquid concentrate, R, rectal suppository. 

There are basically three methods of liquid sampling in GC direct sampling, solid-phase extraction and liquid extraction. The traditional method of treating liquid samples prior to GC injection is liquid-liquid extraction (LLE), but several alternative methods, which reduce or eliminate the use of solvents, are preferred nowadays, such as static and dynamic headspace (DHS) for volatile compounds and supercritical fluid extraction (SFE) and solid-phase extraction (SPE) for semivolatiles. The method chosen depends on concentration and nature of the substances of interest that are present in the liquid. Direct sampling is used when the substances to be assayed are major components of the liquid. The other two extraction procedures are used when the pertinent solutes are present in very low concentration. Modem automated on-line SPE-GC-MS is configured either for at-column conditions or rapid large-volume injection (RLVI). 

Anaerobic phase. Nitrogen was sparged at 5 nL/h and the liquid feeding was stopped. The concentration of acid orange 7 at the beginning of the anaerobic phase was set at the pre-fixed value by injecting concentrated dye solution into the reactor. The reactor was operated under batch conditions with respect to the liquid phase. 

Direct injection or liquid/liquid extraction and concentration. 

Figure IV. B. 1. concentrates on the storable propellant systems. The morphology obviously can be extended to include the cryogenics. Again, the method by which the metal particles are introduced determines the approach. Both the hybrid and the gelling procedure would be considered. The only perturbation would be in the case of the hybrid in which both fuel and oxidizer are injected as liquids and the binder is used simply as a vehicle to carry the metal particles.

Injection of liquid tracer (KC1 at 3M) under pressure is achieved by a system of three electrovalves (3) and allows injection of the tracer with a Dirac type impulse. The tracer concentration is monitored in time using a conductimeter and a recorder. In order to... 

Ketamine is a compound with a molecular structure similar to that of phencyclidine (Figure 4.2). The pharmaceutical versions of ketamine are clear, colorless liquids available in varying concentrations of 10,50, and 100 milligram/milliliter solutions (Figure 4.3). Many recreational users inject this liquid intramuscularly or intravenously. It is the liquid formulation that is used as a date rape drug. Liquid ketamine, which is clear and colorless, can easily be slipped into a drink without being detected. 

Again it is demonstrated that when electrons are injected into liquid water hydrated electrons are formed and do not convert rapidly to hydrogen atoms. Local concentrations of e aq up to about 10 8M are estimated in the experiments of Barker et al. (8). 

As can be seen from Fig. 11 to Fig. 14, continuous injection of liquid COj has little influence on concentration of Oj which basically maintain at about 20%, but it has greater influence on CO as concentration of CO decreases and finally maintains at about 5ppm, moreover, it has little influence on CH4 as concentration of CH4 only changes a little. After the injection, concentration of COj increases and ultimately maintains at about 0.18%. Therefore, continuously injecting CO, into goaf is feasible and safe. 

In contrast to IGC-ID, a measurable amount of probe is injected in the column resulting in a large range of coverage ratios of the solid surface by the probe. Injections of liquid probe of a few microliters are required for ICG in finite concentration conditions. The injected volume is mainly dependent on the surface area developed by the solid in the chromatographic column, and on the measurement temperature. 

Surfactant concentration in the effluent liquids reached half of its injected concentration at 1.03 pore volumes of total chemical slug injected. The 0.04 pore volumes lag of the surfactant front behind the tritium front for this chemical slug of 0.0936 milliequivalents (meq) of surfactant per milliliter translates to an adsorption of surfactant by the core of 0.038 meq per 100 grams of rock. 

From the data listed in the liquid taken off the oil-wet model, the polymer appears directly in the initial (injection) concentration thus, no adsorption can be observed. From this it... 

The core plate differential pressure (AP)/standby liquid control (SLC) line as shown in Figure 2-7 serves a dual function to provide a path for the injection of the liquid control solution (sodium pentaborate) to shut down the reactor from full power when reactivity control with control rods is not possible, and to sense the differential pressure across the core plate. This line enters the reactor vessel at a point below the core shroud as two concentric pipes (for BWR/6 a separate line in the bottom head). In the lower plenum, the two pipes separate. The inner pipe terminates near the lower core shroud with a perforated portion below the core plate. It is used to sense the pressure below the core plate during normal operation and to inject a liquid control solution if required. The outer pipe terminates immediately above the core plate and senses the pressure in the region outside the fuel assemblies. 

The Siemens BWR uses the core plate differential pressure line only for measurement purposes, whereas a separate standby liquid control line for safe shut down is injecting concentrated boron solution from a storage tank via the feedwater lines into the reactor pressure vessel for neutron absorption. 

Filtration only filter washed with MeOH Soxhlet extraction with MeOH SPE on anion exchanger (elution with 95 5 MeOH/con HCl) derivatization further cleanup with alumina, silica, copper SPE on graphitized carbon black (elution with 9 1 CH2Cl2/MeOH,0.01 M in tetra-methylammonium hydroxide) derivatization further cleanup with alumina SPE on graphitized carbon black (elution with 9 1 CH2Cl2/MeOH, 0.02 M in tetra-butylammonium bisulfate) butyl esters formed in GC injection port Liquids. SPE on Cm resin for the lower concentrations and Cm disks for the higher solids MeOH extraction extracts were cleaned up by anion exchange and additional SPE on Cm... 

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