Surfactants used in Detergents are:

1-Anionic,OR
2-Cationic,OR
3-Non-ionic.Or
all of these

http://www.sigmaaldrich.com/Brands/Fluka___Riedel_Home/Bioscience/BioChemika_Ultra/Detergents_Surfactants.html

To determine which type of surfactants are used in detergents, you can refer to reliable sources such as scientific articles, industry websites, or chemical supplier catalogs.

In this case, the link you provided is from Sigma-Aldrich, a reputable chemical supplier. According to the website, detergents can use all three types of surfactants: anionic, cationic, and non-ionic.

1. Anionic surfactants have a negatively charged head group and are commonly used in laundry detergents due to their ability to remove dirt and stains effectively. They are also the most widely used surfactants in household cleaning products.

2. Cationic surfactants have a positively charged head group and are often used as fabric softeners or in specialty applications such as antimicrobial products. They have good conditioning properties and can provide a soft feel to fabrics.

3. Non-ionic surfactants have no charge on their head group and are used in detergents for their excellent emulsification and cleaning properties. They are commonly found in dishwashing detergents and can be gentle on the skin.

Therefore, the answer to the question is that surfactants used in detergents can be anionic, cationic, or non-ionic.