With the use of a lot of pesticides, there was harm to human being's health and the environment in the world. Phenylurea herbicides were the common herbicides in our country. They were persistent in the soil a quarter of a year and highly carcinomatous. Therefore, the analysis into their persistence in the water and the soil were of great importance.
Solid phase extraction (SPE), as a sample pretreatment technique was developed in the recent years. It had the advantage of analytical s...
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