Method for detecting concentration of trace amount of bisphenol A in water environment

A detection method and trace technology, applied in measurement devices, instruments, scientific instruments, etc., can solve the problems that have not yet been seen with detection methods and similar problems, and achieve the effects of easy operation, rapid analysis, and good reproducibility

Inactive Publication Date: 2008-12-03
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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Method used

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  • Method for detecting concentration of trace amount of bisphenol A in water environment
  • Method for detecting concentration of trace amount of bisphenol A in water environment
  • Method for detecting concentration of trace amount of bisphenol A in water environment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Accurately weigh a certain amount of bisphenol A, dissolve it in tap water collected from the laboratory, the concentration is 2.5μg / L, pipette 9mL into a conical glass centrifuge tube, mix the extractant (chlorobenzene, 22.5μL) and dispersant (Acetone, 0.5mL) was quickly injected into the water sample (pH=3.2), the solution became turbid, shaken gently, centrifuged (4000r×4min) to separate, the lower organic phase was removed and quantified, and 5 μL was injected for liquid chromatography detection. The results are shown in Table 1 below.

[0041] Table 1

[0042]

Embodiment 2

[0044] Accurately weigh a certain amount of bisphenol A, dissolve it in recycled reclaimed water collected from Huilongguan District, Changping District, Beijing, at a concentration of 5 μg / L, pipette 9 mL into a conical glass centrifuge tube, and mix the extractant (chlorobenzene, 22.5μL) and dispersant (acetone, 0.5mL) were quickly injected into the water sample (pH=3.2), the solution became turbid, shaken gently, and separated by centrifugation (4000r×4min), the lower organic phase was taken and quantified, and 5μL was injected. Carry out liquid chromatography detection, the result is shown in table 2 below.

[0045] Table 2

[0046]

Embodiment 3

[0048]Accurately weigh a certain amount of bisphenol A, dissolve it in the water collected from Xiaojiahe River, Haidian District, Beijing, at a concentration of 10 μg / L, pipette 9 mL into a conical glass centrifuge tube, mix the extractant (chlorobenzene, 22.5 μL) and the dispersed Acetone, 0.5mL) was quickly injected into the water sample (pH=3.2), the solution became turbid, shaken gently, separated by centrifugation (4000r×4min), the lower organic phase was removed and quantified, and 5μL was injected for liquid chromatography detection , the results are shown in Table 3 below.

[0049] table 3

[0050]

[0051] From above-mentioned example result shows, this method recovery rate is higher, can be used for the detection of trace bisphenol A in water environment. Can also be used for acetone (acetone, 3.096), estriol (E3, 4.845), bisphenol A (BPA, 6.153), 17a-ethinyl estradiol (EE2, 7.030), estradiol (E2, 7.207) , Detection of estrogen (E1, 7.411), chlorobenzene (Chlob...

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Abstract

The invention belongs to the detection technology field of pollutants in an aquatic environment. The invention relates to a method for detecting the trace bisphenol A concentration of a water body, in particular to a detection method of the trace bisphenol A concentration of tap water, reclaimed water or surface water. The method comprises the steps as follows: processing a water sample with an extractant and a dispersant, taking and quantifying the underlayer organic phase, carrying out liquid chromatographic detection, comparing with a standard curve, and quantifying to obtain the trace bisphenol A concentration value. The water sample pretreatment is simple and environment-friendly, the operation is easy, the linear range is wide, the enrichment multiple is high, and the trace bisphenol A concentration in the water body can be rapidly analyzed with better reproducibility. The method can be applied to the detection of acetone, estriol, 17a-lynoral, estradiol, estrone, chlorobenzene and 4-nonylphenol.

Description

technical field [0001] The invention belongs to the technical field of detection of water environment pollutants. In particular, it relates to a detection method for trace bisphenol A concentration in water bodies, in particular to a detection method for trace bisphenol A concentration in tap water, reclaimed water and surface water. Background technique [0002] Estrogen is an environmental pollutant with endocrine disrupting effects, which has attracted wide attention. Bisphenol A is a ubiquitous, highly concerned and representative endocrine disruptor. Bisphenol A in the environment pollutes the atmosphere, soil, water sources, etc., and then directly or indirectly endangers human beings and ecology. When they enter the human or animal body, they will cause the body to shut down or gradually change some biochemical reaction processes, and over time will destroy some original functions in the body and make the normal endocrine system out of balance. Environmental estrog...

Claims

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Application Information

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IPC IPC(8): G01N30/88
Inventor 李鱼刘建林王晓丽董德明翦英红
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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