Automatization abstraction instrument and method for executing organic analysis by using utilization automatization abstraction instrument
A technology of organic analysis and extraction instrument, applied in chemical instruments and methods, separation methods, solvent extraction, etc., to achieve the effects of accurately determining the end time of leaching, realizing automatic operation, and accurately determining the rinsing speed
Inactive Publication Date: 2010-04-07
INST OF SOIL SCI CHINESE ACAD OF SCI +2
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Problems solved by technology
The optimization scheme of the present invention can also solve the problem of accurately determining the time of extractant rinsing, or the required eluent volume
Method used
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Embodiment 1
[0032] Embodiment 1, automatic extractor, with reference to figure 1 with Figure 7 : The multi-manifold extractor 1 is airtightly connected with the vacuum pump through the vacuum tube 2, and the vacuum tube 2 is mounted in the hollow bracket 6. A control mechanism is also arranged inside the box body 5 equipped with a vacuum pump, and a microprocessor chip is arranged in the control mechanism, and a display, buttons and a voltage regulation circuit are connected on the microprocessor chip, and the voltage regulation circuit communicates with the vacuum pump through an output relay. connection, the output circuit is provided with a voltage sensor and a current sensor, and the outputs of the voltage sensor and the current sensor are connected to the microprocessor chip. Figure 7 Middle 3 is a clamping seat, and 4 is a handle.
[0033] Implementation of each module:
[0034] 1. Power supply, figure 2 The medium AC 220V input is converted to DC by the switching power suppl...
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The invention provides an automated extraction instrument, which is hermetically connected with a vacuum pump and is characterized in that the extraction instrument is provided with a control mechanism connected with an electrical source. A microprocessor chip is arranged in the control mechanism; a display, keys, and a voltage regulating circuit are connected to the microprocessor; the voltage regulating circuit supplies power for the vacuum pump through an output relay; the output circuit is provided with a voltage sensor and a current sensor; the outputs of the voltage sensor and a currentsensor are connected with the microprocessor chip. The automated extraction instrument of the invention can control the flow velocity of the extraction liquid by precisely adjusting the vacuum degree,and can accurately control the extraction time through enactment, so as to achieve the separation purpose of solid-phase extraction. The method of using the automated extraction instrument to conductorganic analysis provided by the invention realizes automated operation of solid-phase extraction, namely, the rinsing speed of the extraction agent and the stop time of purification process can be stored and optimized.
Description
technical field [0001] The present application relates to a separation and purification instrument, in particular to an automatic extraction instrument (also known as an adjustable automatic solid-phase extraction instrument), and a method for organic analysis using the automatic extraction instrument. This automatic extraction instrument is applied to the separation and purification of samples in the analysis process of residual organic pollutants in soil, air, water and other environmental samples, as well as biological, agricultural products, seafood and food samples. Background technique [0002] Modern chromatographic analysis technology puts forward higher and higher requirements for the sample pretreatment process. 70-80% or more of the time to complete an experiment is spent on sample pretreatment, and more than 60% of the experimental error comes from the sample pretreatment process. Among them, the solid-phase extraction instrument, which is used as one of the sepa...
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IPC IPC(8): B01L3/00B01D11/00G01N1/34
Inventor 李清波骆永明邢秋平刘五星
Owner INST OF SOIL SCI CHINESE ACAD OF SCI