Device and method for detecting polycyclic aromatic hydrocarbon in water sample on site

A polycyclic aromatic hydrocarbon, on-site detection technology, applied in the detection field, can solve the problems of complex process, inaccurate detection results, long time, etc., and achieve the effects of rapid analysis, improved detection sensitivity, and easy operation.
CN104865237AInactive Publication Date: 2015-08-26SHANGHAI INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI INST OF TECH
Publication Date
2015-08-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

A device for detecting polycyclic aromatic hydrocarbon in a water sample on site comprises a sample liquid tube, a cleaning liquid tube, an eluent tube, a regeneration liquid tube and an enhancement liquid tube, wherein each of the sample liquid tube, the cleaning liquid tube, the eluent tube, the regeneration liquid tube and the enhancement liquid tube is connected with a peristaltic pump, a first peristaltic pump is connected with a first three-way solenoid valve, a second peristaltic pump is connected with a second three-way solenoid valve, a third peristaltic pump is connected with a third three-way solenoid valve, a fourth peristaltic pump is connected with the third three-way solenoid valve, the third three-way solenoid valve and the second three-way solenoid valve are connected, the second three-way solenoid valve is connected with the first three-way solenoid valve, the first three-way solenoid valve is connected with an adsorption column, the adsorption column is connected with a detection cell, a fifth peristaltic pump is connected with the detection cell, and the detection cell is connected with a Raman spectrometer. The invention further provides a method for detecting the polycyclic aromatic hydrocarbon in the water sample. With the adoption of the device and the method, analysis is rapid, the sensitivity is high, a few samples are used, the application range is wide, operation is simple and convenient, repeated usage can be realized, and carrying is convenient.
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Description

Technical field:

[0001] The invention belongs to the field of detection, and in particular relates to a device and method for detecting polycyclic aromatic hydrocarbons, in particular to a device and method for on-site detection of polycyclic aromatic hydrocarbons in water samples. Background technique:

[0002] Polycyclic aromatic hydrocarbons are a class of hydrocarbons containing two or more benzene rings. Most aromatic compounds have serious harm to human health and the ecological environment. my country's current drinking water quality standard (GB5749-2006) stipulates that the maximum allowable concentration of polycyclic aromatic hydrocarbons is 2.0 μg / L. At present, the technologies commonly used for on-site detection of polycyclic aromatic hydrocarbons are mainly portable gas chromatography or portable GC-MS and some portable ultraviolet-fluorescence spectrophotometers. The former is mainly used for rapid detection of volatile organic pollutants, but the detection ef...

Claims

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