High-throughput solid-phase extraction device
An extraction device and high-throughput technology, applied in solid adsorbent liquid separation, chemical instruments and methods, separation methods, etc., can solve the problems of operator hazards, time-consuming, cumbersome operations, etc., and achieve convenient operation and low cost , the effect of high flexibility
Inactive Publication Date: 2017-12-15
昌邑市检验检测中心
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Problems solved by technology
[0004] 1. Most of the solid phase extraction devices need to manually pour out the waste liquid generated during activation, sample loading and rinsing during operation. During the pretreatment process, the vacuum device needs to be turned off and the collection container needs to be replaced. The operation is cumbersome , time-consuming and the resulting organic solvents pose potential hazards to operators
[0005] 2. Usually, only one sample tube can be operated in one pretreatment process, which leads to a large amount of time spent on actual detection of large quantities of samples
[0006]
In summary, there are obviously inconveniences and defects in the actual use of the existing technology, so it is necessary to improve
Method used
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[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0030] see figure 1 , figure 2 The present invention provides a high-throughput solid-phase extraction device, comprising a solid-phase extraction column 1, an extraction support 3, a vacuum container 5, a liquid collection bottle 6, and a vacuum pump 7;
[0031] The extraction bracket 3 is provided with an annular groove 32 matching with the side wall of the vacuum container 5; and a plurality of connection through holes 2 are provided in the area surrounded by the annular groove 32;
[0032] The upper end of the connection through hole 2 is connected to the solid phase extraction column 1, and...
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The invention relates to the field of food analysis and testing, in particular to a high-throughput solid-phase extraction device. It includes an extraction support, a vacuum container, a liquid collection bottle, and a vacuum pump; the extraction support is provided with a ring-shaped groove that matches the side wall of the vacuum container, and several connection channels are provided in the area surrounded by the ring-shaped groove. The upper end of the connection through hole is connected to the solid phase extraction column, and the lower end is connected to the diversion needle; each connection through hole is provided with a rotary switch; the vacuum container is provided with a vacuum connection port, and the vacuum connection port is connected to the liquid collection through the first connection tube. bottle; the liquid collection bottle is connected to the vacuum pump through the second connecting pipe. Thereby, the present invention can process multiple and various samples at the same time, with high efficiency and good flexibility. The generated waste liquid is sucked into the collection bottle by negative pressure for unified treatment, and the whole process is carried out under airtight conditions, which avoids the pollution of the environment by the spread of waste liquid. The cost is low, the structure is simple, the operation is convenient, and the flexibility is high, which can meet various detection requirements.
Description
technical field [0001] The invention relates to the field of food analysis and testing, in particular to a high-throughput solid-phase extraction device. Background technique [0002] Solid-phase extraction is a sample pretreatment technology developed in recent years. It is developed from the combination of liquid-solid extraction and column liquid chromatography. It separates and purifies samples through four steps: activation, sample loading, rinsing, and elution. And concentration, can improve the recovery rate of analytes, more effectively separate analytes from interfering components, reduce the sample pretreatment process, simple operation, save time and effort. It is widely used in the pretreatment of laboratory samples. [0003] There are following deficiencies in the current pretreatment device: [0004] 1. Most of the solid phase extraction devices need to manually pour out the waste liquid generated during activation, sample loading and rinsing during operation...
Claims
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Login to View More IPC IPC(8): B01D15/10
CPCB01D15/10
Inventor 王延龙王永王兆全姜雅红
Owner 昌邑市检验检测中心