extraction column

[ik′strak·shən ‚käl·əm]

(chemical engineering)

Vertical-process vessel in which a desired product is separated from a liquid by countercurrent contact with a solvent in which the desired product is preferentially soluble.

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4-OP, 4-NP, BPA, and [D.sub.16]-bisphenol A ([D.sub.16]-BPA) were purchased form Dr Ehrenstorfer GmbH (Germany), and silicone/N-propyl ethylenediamine (silica/PSA) glass hybrid solid phase extraction column was of 1.0 g/6mL (Hangzhou Fu yu technology service co., LTD).

Survey of Octylphenol, Nonylphenol, and Bisphenol A in Infant Milk Powders by Solid-Phase Extraction Combined GC/MS Method

Preparation of Imazethapyr MIPs Solid-Phase Extraction Column. An empty polypropylene solid-phase extraction column prepared for the experiment was blocked by a polyethylene sieve plate, and 500 mg of MIP powder was filled into the column, another polyethylene sieve plate was used to compact the MIP powder.

Preparation of Imazethapyr Surface Molecularly Imprinted Polymers for Its Selective Recognition of Imazethapyr in Soil Samples

Other instruments included a MTN-2800D nitrogen concentrator (Tianjin Auto Science, China) and a HC-C18 solid phase extraction column (CNW, Germany).

Determination of Cyclopiazonic Acid in Chinese Yellow Wine by High-Performance Liquid Chromatography-Triple Quadrupole Mass Spectrometry

Next it is extracted in 70% methanol and then loaded onto a strong anion exchange, solid phase extraction column. TFV-DP is isolated with salt gradients after which it is dephosphorylated.

Measuring adherence to HIV pre-exposure prophylaxis through dried blood spots

Therefore, one of the approaches is the application of magnetic sorbents instead of filling the extraction column with the sorbent.

Nanosorbent Produced in Iran to Adsorb Tiny Amounts of Aromatic Hydrocarbon from Seawater

In zone B, stratification planes occur in roof bedrock at a greater distance from developed bedrock, as compared to zone A, and is characterized by smaller size along the wall length, but greater size along the length of extraction column. After full transfer of hanging "bedrock package" weight onto the seat earth, goaf bedrock is compacted, and separation occurs in the bedrock further away from the goaf roof (zone C).

Assessment of relationship between mechanical states of the solid and gas-dynamic factors in relation to development of methods for calculating parameters of methane drainage boreholes in coal deposits exploitation

The ultrasonic extraction column includes the ultrasonic generation instrument and extraction reactor.

Study on ultrasonic extraction of kerogen from Huadian oil shale by solvents

Larger ticks will increase the amount of fragmented exoskeleton in solution and this may obstruct the flow of the extraction column, therefore, an additional 25-50 [micro]l of lysis buffer was added before homogenization.

Cost-effective bead-based method for high-throughput homogenization of individual small arthropods

The results suggest that paraffin-micro encapsulated red phosphorus particles show a lower moisture absorption ratio within the experimental conditions of the extraction column and nozzle temperature of 120 [degrees] C, extraction column pressure of more than 16 MPa, and a mass flow of core particles (0.5 g/min).

Fabrication of fine microcapsulated red phosphorus particles by SCF-RESS with a new structure nozzle

The major device used in this work is a bench scale pulsed plate liquid-liquid extraction column whose characteristics are presented in Table 1.

Dependence of holdup on height in a pulsed plate column based on binary liquid-liquid equilibrium data

In brief, the estrogenic chemicals were immobilized on a C18 silica-bonded solid-phase extraction column, eluted, and analyzed by gas chromatography/mass spectrometry.

Assessing the sensitivity of different life stages for sexual disruption in roach (Rutilus rutilus) exposed to effluents from wastewater treatment works