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Method for detecting concentration of dimethyl sulfoxide in workplace air

A dimethyl sulfoxide and detection method technology, which is applied in the field of detection of dimethyl sulfoxide concentration in the air in the workplace, can solve problems such as blank detection methods, achieve less loss of components to be measured, and high detection accuracy , the effect of low detection limit

Inactive Publication Date: 2019-03-01
JILIN ELECTRIC POWER RES INST +1
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Problems solved by technology

[0004] In view of the above problems, the purpose of this invention is to provide a detection method for the concentration of dimethyl sulfoxide in the air of the workplace, to solve the problem that the detection method of the content of dimethyl sulfoxide in the air of the workplace is still blank in China

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  • Method for detecting concentration of dimethyl sulfoxide in workplace air
  • Method for detecting concentration of dimethyl sulfoxide in workplace air
  • Method for detecting concentration of dimethyl sulfoxide in workplace air

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Embodiment Construction

[0025] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that these embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

[0026] Before detailing the technical scheme of the detection method for the concentration of dimethyl sulfoxide in the workplace air provided by the present invention, the overall thinking of the detection method is summarized: use an air sampler for fixed-point sampling, use activated carbon tubes as solid adsorption Solvent desorption-gas chromatography was used to detect the content of dimethyl sulfoxide in the air of the workplace by using carbon disulfide as the desorption liquid, and the optimized chromatographic conditions were proposed.

[0027] The...

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Abstract

The invention provides a method for detecting concentration of dimethyl sulfoxide in workplace air. The method comprises the following steps: S1, sampler calibration; S2, in-situ sampling; S3, samplepretreatment; S4, chromatographic condition setting; S5, standard curve drawing; S6, sample determination; S7, calculation of the concentration of dimethyl sulfoxide in the workplace air. The detection method is simple to operate, the cost is lower, and samples can be collected and analyzed abundantly; by means of sample pretreatment with the method, fewer to-be-detected components are lost and detection accuracy is high; lower detection limit, higher sensitivity and higher analysis speed can be realized according to provided chromatographic conditions, the effect on separation between a solvent peak and to-be-detected substances is good, the linear range of a standard curve is wider, and the method is suitable for analyzing samples with different concentrations quickly and effectively.

Description

technical field [0001] The invention belongs to the technical field of occupational health detection, and in particular relates to a method for detecting the concentration of dimethyl sulfoxide in the air of a workplace. Background technique [0002] Dimethyl sulfoxide (DMSO for short) is an organic solvent that can dissolve in various organic substances such as ethanol, benzene, and chloroform, and is known as a "universal solvent". Dimethyl sulfoxide is widely used as a solvent and reaction reagent, and is widely used in chemical, pharmaceutical and other industries. Studies have shown that DMSO is irritating to the skin and mucous membranes. The current national standard "Occupational Exposure Limits of Hazardous Factors in the Workplace Part One: Chemical Hazardous Factors" (GBZ 2.1-2007) has not yet stipulated its occupational exposure limit, and the latest revised national standard plans to increase its occupational exposure limit. However, the detection method of di...

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Application Information

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IPC IPC(8): G01N30/88
CPCG01N30/88
Inventor 李智孙成勋朱宝余陈涛张赩刘森唐云雪何爽
Owner JILIN ELECTRIC POWER RES INST
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