With the strengthening of the government's environmental protection work, the requirements for water pollution detection indicators are higher and higher. The emission content of petroleum, animal and vegetable oils affects the oil content in water quality. Infrared spectrophotometer is used to detect the content of petroleum, animal and vegetable oil and mineral oil in water. As early as 2000, the bulletin of China's scientific and technological research on environmental protection had announced that we had mastered the detection technology of infrared oil detector, which provided a favorable basis for later research and development.

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