Acid pumps include sulfuric acid pumps, concentrated sulfuric acid pumps, hydrochloric acid pumps, nitric acid pumps, mixed acid pumps, phosphoric acid pumps, hydrofluoric acid pumps, hydrogen cyanide pumps, acetic acid pumps, chromic acid pumps, formic acid pumps, oxalic acid pumps, lactic acid pumps, methacrylic acid pumps, chlorosulfonic acid pumps, fatty acid pumps, propionic acid pumps, boric acid pumps, terephthalic acid pumps, stearic acid pumps, and acrylic acid pumps.
Salt pumps cover potassium dichromate pumps, sodium chloride pumps, sodium carbonate pumps, ammonium sulfate pumps, baking soda (sodium sulfate) pumps, sodium cyanide pumps, aluminum chloride pumps, sulfite pumps, sodium hypochlorite pumps, sodium chlorate pumps, lithium bromide pumps, aluminum sulfate pumps, sodium silicate pumps, sodium sulfate pumps, ammonium sulfide pumps, sodium nitrate pumps, and sodium phosphate pumps.
Alkali pumps consist of sodium hydroxide pumps, potassium hydroxide pumps, ammonia pumps, and magnesium hydroxide pumps.
Ester pumps include methyl acetate pumps, ethyl acetate pumps, amyl acetate pumps, methyl acrylate pumps, and methyl methacrylate pumps.
Aromatic pumps are benzene pumps, toluene pumps, xylene pumps, phenol pumps, naphthalene pumps, dichloronaphthalene pumps, hydrotoluene pumps, methyl naphthalene pumps, alkyl benzene pumps, biphenyl pumps, and trimethylbenzene pumps.
Hydrocarbon pumps refer to non-aromatic hydrocarbons such as butane pumps, decane pumps, cyclohexane pumps, cyclohexanone pumps, hexane pumps, methane pumps, propane pumps, propylene pumps, ethane pumps, and methacrylone pumps.
Alcohol pumps include methanol pumps, ethanol pumps, butanol pumps, hexanol pumps, isopropyl alcohol pumps, octyl alcohol pumps, glycerol pumps, glycol pumps, and propylene glycol pumps.
Oxygen compound and ether pumps consist of formaldehyde pumps, acetaldehyde pumps, benzaldehyde pumps, methyl ether pumps, ether pumps, acetone pumps, ethylene oxide pumps, acrolein pumps, crotonaldehyde pumps, propylene ketone pumps, acetic anhydride pumps, ketone pumps, and furan pumps.
Halogenated hydrocarbon pumps include carbon tetrachloride pumps, trichloroethylene pumps, chloropropene pumps, carbonyl chloride pumps, liquid chlorine pumps, anhydrous hydrochloric acid pumps, anhydrous hydrogen fluoride pumps, methylene blue chlorine pumps, silicon tetrachloride pumps, phosphoric acid pumps, ethylene dichloride pumps, trichlorosilane pumps, dichloropropene pumps, phosphorus oxychloride pumps, tetrafluoroethylene pumps, phosphorus trichloride pumps, chloroform pumps, and aluminum dichloride pumps.
Nitrogen-sulfur compound pumps include carbon disulfide pumps, anhydrous sulfur dioxide pumps, anhydrous ammonia pumps, aniline pumps, acrylamide pumps, and ethylamine pumps.
Refrigerant pumps include Chlorofluorocarbon (CFC) pumps, liquid carbon dioxide pumps, liquefied methane pumps, liquefied ethylene pumps, liquefied propane pumps, and liquid ammonia pumps.
Oil pumps cover oil (naphtha, crude oil, gasoline) pumps, electrical insulating oil pumps, edible oil pumps, and lubricating oil pumps.
Heat and refrigerant pumps include thermally conductive heat exchangers, liquid ammonia pumps, lithium bromide pumps, and methyl chloride refrigerant pumps.
Water pumps, seawater pumps, pure water pumps, boiling water pumps, and wastewater pumps are also available.
Monomer and compound pumps include PVC pumps, styrene pumps, polycaprolactam pumps, neoprene pumps, butadiene pumps, polyvinyl ether pumps, acrylonitrile pumps, acetonitrile pumps, and sulfur pumps.
Other specialized pumps include mercury pumps, lead pumps, triethyl chlorosilane pumps, methyl silane pumps, hydrogen peroxide pumps, plastic pumps, imaging fluid pumps, gelatin pumps, lotion pumps, and sugar pumps.

Vtm Sampling Tube With Swab

[Sample requirements]
The collected nasopharyngeal swab samples should be transported at 2°C to 8°C and sent for inspection immediately, and the sample delivery and storage time should not exceed 48 hours.

[Testing method]
1. Before sampling, mark the relevant sample information on the label of the sampling tube.
2. According to different sampling requirements, use a sampling swab to sample in the nasopharynx.
3. The specific sampling methods are as follows:
a) Nasal swab: Gently insert the swab head into the nasal palate, stay for a while and then slowly turn to exit. Wipe the other nostril with another swab, immerse the swab head in the sampling solution, and discard the tail.

b) Pharyngeal swab: Wipe bilateral pharyngeal tonsils and posterior pharyngeal wall with a swab, also immerse the swab head in the sampling solution, and discard the tail.

4. Quickly put the swab into the sampling tube.
5. Break the part of the sampling swab higher than the sampling tube, and tighten the tube cover.
6. Freshly collected clinical specimens should be transported to the laboratory within 48 hours at 2°C to 8°C.

[Explanation of test results]
After the sample is collected, the sampling solution turns slightly yellow, which will not affect the nucleic acid test result.

[Limitations of the test method]
1. For samples that are seriously contaminated due to improper storage after collection, the final test results will be affected.
2. If the sample is not stored at the specified temperature, the final test result will be affected.