Detection of phthalate migration in reverse osmosis water purifier
This paper selects the mainstream reverse osmosis water purifier on the market and fills the new machine of the reverse osmosis water purifier with water.After the filter element and pipe were soaked for 24 hours,the content of phtha-lates in the water sample was determined.At the same time,the content of phthalates was determined under the rated net water amount of the water purifier according to the manufacturer's instructions.17 kinds of phthalates were selected as the target material and determined by gas chromatography and mass spectrometry.Results No 17 kinds of phthalates were de-tected in the water samples of the reverse osmosis purifier after soaking and in the water samples of each volume under the rated net water volume.According to the manufacturer's instructions,the normal use of reverse osmosis water purifier does not occur the migration of phthalates.
Reverse osmosis water purifierGC-MSWater purificationPhthalate ester