How to deal with the waste liquid produced by high performance liquid chromatograph is an explanation today. First of all, liquid chromatograph refers to the use of the difference in the distribution ratio of the mixture between liquid-solid or immiscible liquids. The first separation, then analysis and identification of the instrument, the instrument will produce corresponding waste liquid in the working process, so this kind of waste liquid needs to be properly collected and processed.

The treatment of waste liquid produced by liquid chromatograph depends on two situations:

One. The amount of waste liquid is relatively small. For example, for analytical chromatography, it must be sent to a special waste liquid treatment station. Because incineration or chemical treatment has a certain cost, but some waste liquid treatment stations are transported to a small place for landfill or dumping, and pollution is changed to another place. If it is not too troublesome, you can also dispose of it yourself: separate and collect, if the organic content is higher than methanol, acetonitrile, etc., you can find a safe place to incinerate; the acid content is neutralized with waste alkali and then discarded, and the salt content can be discarded directly , But if there are highly toxic ingredients (such as sodium azide), it is more troublesome, it is best to collect them and send them to the waste liquid treatment department for disposal. There is another method, which needs to add equipment. It is a terminal programmable collector, which is suitable for chromatographic analysis with relatively few elution components. It intercepts the part that does not flow out and can be recycled and used as the mobile phase. The country is very popular.

2. The amount of waste liquid is very large, such as preparation. A set of rectification system can be added, and the waste liquid can be reused after fractionation.

There is a third way to directly dump the most trouble-free, but this will pollute the environment, and according to the relevant regulations on the treatment of laboratory waste liquid, this operation cannot be done. Many laboratories will use the first method for the waste liquid generated by the liquid chromatograph. The method of storage and reprocessing, and the volatilization of the chromatographic mobile phase and the volatilization of waste liquid in the laboratory environment are one of the main sources of laboratory air pollution, which seriously pollutes the laboratory air. Is there any equipment that can safely collect waste? Liquid can also play a role in filtering and environmental protection.

Beijing Aowei Instrument SE series solvent safety bottle caps are such a product, which can efficiently filter dust in the air, prevent mobile phase contamination, and ensure the accuracy of analysis results; when the chromatographic instrument stops working, it prevents the mobile phase from passing through the air inlet. Volatilization protects the laboratory environment from pollution, and has the following characteristics:

microporous membrane-high efficiency filtration

SE series solvent safety bottle caps have a built-in PTFE microporous filter membrane to efficiently filter the air entering the mobile phase bottle to prevent dust from polluting the solvent and ensure the accuracy of the analysis results;

One-way seal-prevent volatilization

SE series solvent safety bottle caps use a high-sensitivity one-way safety valve. When the chromatographic instrument stops working, the safety valve is closed and sealed to prevent the solvent in the bottle from volatilizing outward, protect the laboratory environment and the health of the experimenters;

Time tag-due reminder

When the SE series solvent safety bottle cap is used, press the time start button on the safety valve, and the time label will record the time of use in the form of a red progress bar, reminding users to replace the safety valve on schedule;

plug-in installation-easy to replace

The safety valve on the SE series solvent safety bottle cap is recommended to be replaced after 6 months of use. The safety valve adopts a quick plug-in installation design, which can be replaced by the user;

So if you are also troubled by the problem of how to deal with the waste liquid generated by the liquid chromatograph, you can take a look at our solvent-safe bottle cap product, which can really help purify the laboratory air and protect the health of laboratory personnel The products have been purchased and used by major experimental institutes. In the Green Lab 3.0 era, don’t you still pay attention?