There are six methods to detect formaldehyde:
1, formaldehyde self-test box. Formaldehyde self-test box is generally used to measure indoor formaldehyde concentration. This self-test box can test itself as soon as it is opened, which is accurate, efficient and cheap. This is a very practical method.
2, formaldehyde detector detection. This kind of instrument is expensive, high precision and inconvenient for personal use, and is generally used by large professional companies.
3. Acetylacetone spectrophotometry. This method is generally used to detect formaldehyde in raw materials and can also be used for medical treatment.
4. Phenol reagent spectrophotometry. This method is generally used by professional formaldehyde detection institutions. After getting the air in the place to be detected, take it back and detect it with the formaldehyde rapid detector. This method can only take local air, and its accuracy is not high.
5. Gas chromatography. This method is to gasify the substance and then analyze it by chromatography. The result is accurate, but it is time-consuming and laborious, time-consuming and expensive. It is mainly used to detect benzene and TV0C.
6.AB detection method. This method uses steam to extract formaldehyde gas for detection. Mainly used for the detection of textiles.
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