Method for determining acrylamide in air of workplace through gas chromatography method

Abstract

The present invention belongs to the technical field of workplace air detection, and particularly relates to a method for determining the acrylamide in the air of a workplace through a gas chromatography method. The method comprises: carrying out a bromination reaction on taken air samples in a reaction tube to obtain dibromopropionamide for detection. Compared to the method in the prior art, the method of the present invention has the following advantages that the dibromopropionamide is generated from the acrylamide so as to conveniently detect; the acrylamide bromination rate is high so as to easily improve the accuracy of the experiment; with the application of the method to determine the low concentration acrylamide in the workplace, the reliability is high, the national requirements can be met, and the detection is rapid; and the minimum detection concentration is 0.004 mg / m<3> in 50 L of the collected sample; the anti-interference is strong; and the method can be used for the determining the acrylamide concentration in the air of the workplace.

Description

technical field [0001] The invention belongs to the technical field of workplace air detection, and in particular relates to a method for measuring acrylamide in workplace air by gas chromatography. Background technique [0002] In the occupational health testing work, accurately evaluating the pollution of acrylic acid and other harmful substances in the workplace air has practical significance for protecting the health of workers, avoiding occupational hazards, ensuring safe production of enterprises, and promoting social harmony and stability. Acrylamide is a kind of Toxic substances can enter the body through the skin, respiratory tract, and digestive tract. Polyacrylamide produced with him as raw material is widely used in various fields, and the supply exceeds demand. It occupies a very important position in my country's energy strategy and water-saving strategy. However, acrylamide The improvement of the production process has reduced the dust concentration in the air, ...

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Problems solved by technology

[0002] In the occupational health testing work, accurately evaluating the pollution of acrylic acid and other harmful substances in the workplace air has practical significance for protecting the health of workers, avoiding occupational hazards, ensuring safe production of enterprises, and promoting social harmony and stability. Acrylamide is a kind of Toxic substances can enter the body through the skin, respiratory tract, and digestive tract. Polyacrylamide produced with him as raw material is widely used in various fields, and the supply exceeds demand. It occupies a very important position in my country's energy strategy and water-saving strategy. However, acrylamide The improvement of the production process has reduced the dust concentration in the air, making it more hidden to the workers, and also brought some difficulties to the scientific research of the on-site detection of acrylamide. At present, the medium polarity packed column is often used The precision and sensitivity of gas chromatographic detection cannot adapt to the current process characteristics of low concentration and humidity operations in the production of acrylamide, so further research should be done on this

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