摘要:
A method for controlling the dispersing of solids in drilling mud, consisting in that mud mineralization value is measured continuously until it stabilizes itself in the course of the dispersing, the variation of the mud mineralization value being used to determine the concentration of particles of the drilling mud solid phase.
摘要:
A dialysate proportioning system in which salt concentrate and water from two lines are combined in a mixing chamber, the pressure drops across a linear concentrate resistor in the concentrate line and a linear water resistor in the water line are maintained at equal values by pressurization of the concentrate in a reservoir, and the conductivity of the dialysate is maintained by an electrical conductivity control which varies a trim valve bypassing the water resistor.
摘要:
A system for preparing solutions for chromatography application is disclosed. The system comprises a T-joint for preparing a buffer solution by mixing at least one first solution and a second solution. The T-joint receives the second solution from a solution supply unit connected to the T-joint. Further one or more low pressure pumps supply the one or more first solutions into the T-joint. The high pressure pump collects the buffer solution and delivers it to a chromatography apparatus.
摘要:
Liquid blending systems and methods of blending liquids are provided. In particular, systems and methods for compensating binary inlet buffers during inline buffer dilution are provided. The systems and methods can provide blends of diluent, a first buffer concentrate containing a majority of a tempering component, and a second buffer concentrate containing a minority of a tempering component. The flow of the first buffer concentrate can be adjusted based upon the total amount of the tempering component being added to the blend through the first and second buffer concentrates.
摘要:
An apparatus and method to convert high resistivity (18 MOhm/cm) deionized water into lower resistivity deionized water with a tight resistivity range (150 KOhm/cm +−50 KOhm/cm) without adding metals to the DI. The invention discreetly injects carbon dioxide in an on demand fashion through a metals free fluid path.
摘要翻译:将高电阻率(18MOhm / cm)去离子水转化成电阻率较低的去离子水(150KOhm / cm + 50KOhm / cm)的装置和方法,而不向DI中添加金属。 本发明通过无金属流体路径以按需方式谨慎地注入二氧化碳。
摘要:
Embodiments of a process for treating a fluid are provided. The process for treating a fluid includes supplying a first fluid to a circulating chamber and introducing a first gas to the first fluid. A portion of the first gas is dissolved in the first fluid and a portion of the first gas is held in a head space portion of the circulating chamber. The process further includes mixing a portion of the first fluid drawn out from the circulating chamber and a portion of the first gas drawn out from the head space portion to form a mixture. The process further includes spraying the mixture back into the circulating chamber by a two-fluid nozzle. In addition, the first gas is further dissolved into the first fluid to form a high conductivity fluid. The process further includes draining the high conductivity fluid from the circulating chamber.
摘要:
The present invention is to present a reagent preparing apparatus for preparing a reagent for processing a sample, by using a first liquid and a second liquid, comprising: a storage unit for storing liquid; and a constant amount liquid quantifying unit comprising a constant amount holding instrument which is used in common to hold a constant amount of the first liquid and to hold a constant amount of the second liquid, the constant amount liquid quantifying unit performing an operation of transferring the constant amount of the first liquid to the storage unit and performing an operation of transferring the constant amount of the second liquid to the storing unit.
摘要:
Methods and systems for chromatography are disclosed that employ a flexible container configured to fit within a support structure and adapted to receive a filtration or absorptive medium, such as a chromatography resin. The flexible container can include at least one inlet, at least one outlet, and a separation barrier peripherally sealed within the container to separate the container into a resin containing portion and a drainage portion. The barrier can be configured to exclude the resin material from the drainage portion during use while allowing fluids to pass therethrough. The disposable chromatography system can further include one or more agitators disposed within the flexible container and adjustably configured to be raised or lowered in the flexible container. When the agitator is in the raised position, the resin packing material can operate in a settled, packed-bed configuration. Alternatively, the agitator in the lowered position permits the chromatography resin packing material to operate in a mixed, slurry configuration.
摘要:
A method for preparing a liquid flow having pre-defined characteristics by mixing liquid flows of at least two different component stock solutions with each other comprises the steps of determining a selected property value for one or more of the stock solutions by sensing, in a flow of each stock solution separately, at least one characteristic related to the property value for the stock solution, and based on the determined property value or values, mixing the stock solution flows in mixing ratios giving the desired mixed liquid flow. A system for carrying out the method comprises sensor means and a control unit, wherein the control unit is arranged to evaluate the characteristics sensed by the sensor means and provide relative ratios of stock solutions required to obtain a mixed liquid flow having the pre-defined characteristics.
摘要:
A process bag container is provided comprising a flexible bag, at least one inlet sealed to the bag, and an outlet. A probe housing for a probe construction is sealed to the bag. Preferably, the probe housing extends at least partway into the bag interior and is connected to a cable for power and data transmission that runs along the outer surface of the bag to the top of the bag or its support container. The probe construction is adapted to monitor the composition of a reagent in the bag as well as the environment within the bag. A mixer is positioned within the bag to effect mixing of reagents in the bag.