Efficient ! 5 methods for cleaning chromatography sample vials
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Efficient ! 5 methods for cleaning chromatography sample vials

Oct. 21st, 2019
It has a good washing effect on the fat-soluble residue and organic reagent residue in the chromatography sample vials. The cleanliness meets the requirements, the cleaning step is simple, and the cleaning time is reduced, and the cleaning process is more environmentally friendly. Please choose your own laboratory to choose your own!
 
At present, with the increasing attention to food quality and safety, chromatographic analysis technology is increasingly used in food quality and safety testing, especially in the field of agricultural product testing, chromatographic analysis technology has been widely used.
Every year, a large number of agricultural products (other chemical products, organic acids, etc.) are detected by liquid chromatography and gas chromatography. Due to the large number of samples, a large number of injection bottles need to be cleaned during the testing process, which not only wastes time, but also reduces work efficiency, and sometimes there is a case where the experimental results are deviated due to the cleanliness of the cleaned chromatography sample vials.


There have five ways to clean the chromatography sample vials:

Method 1 

1, tap water rinse several times.
2, put in a beaker with pure water, ultrasound for 15 minutes.
3, change the water, and then ultrasound for 15 minutes.
4, soaked in a beaker with water ethanol.
5, finally take out the natural air dry.

Method 2

1, tap water rinse several times.
2, put in a beaker with pure water, ultrasound for 15 minutes.
3, change the water, and then ultrasound for 15 minutes.
4, soaked in a beaker with water ethanol.
5, finally take out the natural air dry.

Method 3

1, generally with water rinse drying and then soaked with potassium sulfate potassium chromite lotion.
2, chromatography sample vials washing method and do the same other is the same, first use medical alcohol to invade more than 4 hours, and then ultrasound for half an hour, and then pour out medical alcohol, use water ultrasound half an hour, rinse with water after drying on it.

Method 4

1, first with methanol (pure color spectrum) soaked, and ultrasonic cleaning for 20 minutes, then methanol dry.
2, then fill the chromatographic sample bottle with water, ultrasonic cleaning for 20 minutes, then the water will be drained.
3, after the chromatography sample bottle drying.

Method 5

1, if the cost is sufficient, each time with the new best.
2, if you want to reuse, cleaning method is also very important, first with strong oxidation cleaning liquid (heavy potassium chromate) soaked for 24 hours, and then with deionized water in ultrasonic conditions clean three times, and finally with methanol cleaning once, drying can be used. 3, bottle pad must be replaced with new, especially when analyzing pesticide residues, must change, otherwise it will affect the quantitative results.
The five cleaning methods of chromatography sample vials are introduced to you. I hope you can pay attention to the cleaning of chromatographic sample bottles.

 
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