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The Study on the Biodegradability and Phosphate, Heavy Metal Contents of Shampoos and Powder Detergents for Clothing
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1998, v.11 no.2, pp.105-111
Ko,
Y., Kim,
S., Lim,
J., Rhu,
C., &
Choi,
S.
(1998). The Study on the Biodegradability and Phosphate, Heavy Metal Contents of Shampoos and Powder Detergents for Clothing. Analytical Science and Technology, 11(2), 105-111.
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Abstract
The biodegradabilities of surfactants were measured for shampoos and powder detergents for clothing(six kinds of each) in domestic market at present. Also the phosphates that cause of eutrophication and heavy metals to have a direct effect on human body were measured. Analysis results show that though they all come up to KS(Korean Industrial Standards), samples containing plenty of sodium <TEX>${\alpha}$</TEX>-olefin sulfonate(AOS), linear alkyl benzene sulfonate(LAS) and synthetic sodium lauryl etoxylate sulfonate (SLES) have the lower biodegradability than the others. It was found that these samples were petroleum surfactants, and the lower biodegradability than surfactants extracted naturally. The contents of phosphates and heavy metals in the samples were under the regulation limits for the cosmetic standards.
- keywords
- biodegradability, phosphate, LAS, SLES
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