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What is the "big data, cloud information" of the centrifuge?

2018/11/12 11:53:08      click :

  Inscription: In today's society, the development of each industry needs science and technology development as the foundation, and the centrifuge industry is also the same. Recently, a new programmable controller has been developed, which relies on big data, cloud information, etc., and is designed for the centrifuge industry!
  The centrifuge uses a programmable memory that can be used to store programs, perform logic operations, sequence control, timing, counting, and arithmetic operations, and control them through digital and analog inputs and outputs. Various types of machinery or production processes. Programmable controllers and related equipment should be designed in such a way that they are easy to integrate with the industrial control system and are easy to expand. It performs logical operations and mathematical operations and coordinates the work of the entire system. The memory is divided into system program memory and user program memory, which is used to store system programming programs and process variables for monitoring running programs, user programs, logic and math operations, and all other information.
  Thus, the centrifuges using this design have become economical and practical: one instrument, three rotors are available: angular rotor; horizontal rotor for red cell washing; horizontal rotor for microcolumn gel experiment. Rotor replacement is simple and fast.
  ◆Easy operation: 11 kinds of working programs are built in; standard procedures are set for various experiments of blood type serology; the corresponding programs can be set according to the needs, so that clinical experiment detection and research are standardized and standardized.
  ◆Precise centrifugal force: quick start, speed up timing, automatic braking, more accurate centrifugal force.
  ◆Applicable for a wide range of applications: suitable for blood type serological routine testing; red blood cell washing (washing 12 tubes as simple as washing a single tube); microcolumn gel immunoassay experiments. The six-tube tube changes the cumbersome operation of the traditional method of tube test, shortens the centrifugation time, and is easier to judge the result.
  The basic principle that many industries need to separate biomacromolecules and subcellular substances by centrifugation is to form different zones according to their different liquid or medium sedimentation speeds, or their density is different and stay in different positions in the liquid medium. And separate them one by one. The former is the sedimentation velocity method. When the method is applied, the maximum density of the liquid medium is smaller than the density of the smallest particles in the sample. The high speed and short time are selected for centrifugation; the latter is the sedimentation balance method, and the maximum density of the liquid medium is applied when the method is applied. It is larger than the density of the smallest particles in the sample, and the lower speed and longer time are selected for centrifugation.

centrifuge


  There are several forms of actual operation:
  Differential centrifugation
  This method is to select different speeds of centrifugation to separate the different components. For example, the large particles and the supernatant are firstly settled at a low speed, and the medium particles are precipitated in a high-speed centrifugal supernatant, and finally the ultra-centrifugal supernatant is used to settle small particles. Separate the particles of different sizes by using a method of increasing the centrifugal force to separate the supernatant.
  This method is relatively simple and convenient. The separated components sink to the bottom of the tube, so that the desired components can be quickly concentrated and the volume reduced. However, the recovery rate and purity are contradictory. To increase the recovery rate, it is necessary to increase the rotation speed or extend the centrifugation time, so that particles of similar size will sink to the bottom of the tube. Therefore, this method is mostly used for crude purification or preliminary concentration of samples.
  Velocity zone (or velocity gradient) centrifugation
  In this method, the sample is placed on a continuous density gradient liquid. By centrifugation, the large particles settle quickly and the small particles settle slowly. After a while, the same particles are at the same depth
  A strip is formed, so the various components are separated. It is suitable for separating substances of the same density and different sizes. For example, different protein components have similar densities, but the molecular weights are different. It is easy to separate them by this method. However, substances with different densities and similar sizes are not easily separated.
  The sucrose gradient is a commonly used medium. Different concentrations of sucrose solution (5%-60%) were used to form a gradient for gradient centrifugation. The components in different zones are collected separately.
  Settlement equilibrium centrifugation
  This is a static method. A liquid gradient is formed in the centrifuge tube, and the components sink at different speeds during centrifugation, but eventually stay in the same density as themselves, forming a narrow equilibrium band and remaining relatively stable. In order for all components of the sample to reach their equilibrium position, centrifugation is required for a long time.
  Shanghai Luxiangyi Centrifuge Instrument Co., Ltd. has a history of more than 40 years. Whether it is qualifications or reputation, it is trustworthy in the centrifuge industry. Shanghai Lu Xiangyi is also a Chinese centrifuge company that has obtained FDA certification in the US and passed ISO9001. :2015 quality system certification and ISO13485:2003 quality system certification and CE certification, welcome centrifuge users to visit and negotiate exchanges!