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Ecological risk evaluation method of PPCPs (pharmaceutical and personal care products) in water environment

A technology of ecological risk and evaluation method, which is applied in the field of environmental science and ecological risk evaluation, can solve the problems that the ecological risk evaluation of PPCPs pollutants has not yet formed a perfect risk evaluation system, and achieves low cost, strong selectivity, and good reproducibility Effect

Inactive Publication Date: 2017-06-13
TIANJIN UNIV
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Problems solved by technology

Overall, the ecological risk assessment of PPCPs pollutants in the water environment has not yet formed a complete risk assessment system, especially the selection of PPCPs pollutants is too small

Method used

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  • Ecological risk evaluation method of PPCPs (pharmaceutical and personal care products) in water environment
  • Ecological risk evaluation method of PPCPs (pharmaceutical and personal care products) in water environment
  • Ecological risk evaluation method of PPCPs (pharmaceutical and personal care products) in water environment

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with specific examples, but the protection scope of the present invention is not limited to the following specific examples.

[0028] The specific embodiment takes the raw water of a waterworks in a certain city in the north as the object, and takes six compounds such as diclofenac, ibuprofen, ketoprofen, bezafibrate, fenofibrate, and paroxetine in the raw water as the target PPCPs Compound, implement the present invention.

[0029] Adopt PPCPs ecological risk assessment method in the water environment of the present invention, the steps are as follows:

[0030] (1) Detection of PPCPs concentration in water environment

[0031] (1.1) Water sample pretreatment: collect 1L water sample, add 2.5g ascorbic acid to water sample, quench the residual chlorine in water sample; ) production) to filter the water sample to remove suspended solids in the water sample; add 0.5g Na to the water sample 2 EDTA, com...

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Abstract

The invention discloses an ecological risk evaluation method of PPCPs (pharmaceutical and personal care products) in a water environment. The method comprises the following steps: (1) detection of PPCPs concentration in a water environment: water sample pretreatment, solid-phase extraction and quantitative detection by a high performance liquid chromatography-mass spectroscopy combined technique; (2) by using bacteria, algae, invertebrates, fish and other aquatic organisms as test organisms, determining the predicted no effect concentration (PNEC) by using toxicological data 50% effective concentration (EC50); (3) calculating the risk quotients (RQ) according to the formula RQ=MEC / PNEC, wherein MEC is the measured environmental concentration; and (4) evaluating the ecological risk degree of the target compounds PPCPs by an RQ process. The method is low in cost, friendly to the environment and convenient for operation. The detection method of PPCPs is simple to operate and easy to implement, has the advantages of high selectivity for target compounds, high sensitivity, high enrichment multiple and favorable reproducibility, and can simultaneously separate and determine multiple compounds.

Description

technical field [0001] The invention relates to the fields of environmental science and ecological risk assessment, and more specifically relates to an ecological risk assessment method for PPCPs in a water environment. Background technique [0002] At present, the water pollution of pharmaceuticals and personal care products (PPCPs) has attracted widespread attention from the international community. PPCPs are a new class of pollutants that are most closely related to people's daily life. , antihypertensive drugs, contraceptive drugs, hypnotic drugs, etc., and veterinary drugs), personal care products (chemical consumer products, such as cosmetics, sunscreen, hair dyes, musk substances, detergents, etc.) and in the production of pharmaceuticals and care products And various additives and inert ingredients used in the processing, etc. [0003] The wide use of PPCPs products in many fields leads to various ways for them to enter the environment. First of all, in the produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02
CPCG01N30/02G01N2030/027
Inventor 赵新华王晓欧吴卿张练肖敏如李楠
Owner TIANJIN UNIV
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