A method for the simultaneous determination of 12 opes residues in water samples and sediments
A sediment and water sample technology, applied in the field of organic phosphate determination, can solve the problems of insufficient sensitivity, poor anti-interference ability, and low detection limit, and achieve high detection sensitivity, good stability, and low detection limit Effect
Inactive Publication Date: 2019-02-22
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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[0005] The purpose of the present invention is to provide a method for simultaneously measuring 12 kinds of OPEs residues in water samples and sediments, which has certain limitations, insufficient sensitivity, and poor anti-interference ability in existing detection methods. Low limit, good stability, can basically meet the detection requirements of 12 kinds of OPEs residues in water and sediment
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[0038] Taking the samples collected at 25 sampling points set up in Taihu Lake and its tributaries entering the lake in November 2016 as an example, the following 12 kinds of OPEs residues in water samples and sediments were simultaneously determined. The 12 kinds of OPEs include trimethyl phosphate ( Trimethylphosphate, TMP), Triethyl phosphate (TEP), Tri-n-butylphosphate (TnBP), Tributoxyethyl phosphate (Tributoxyethyl phosphate, TBEP), Tris(2-chloroisopropyl)phosphate (Tri(chloropropyl)phosphate, TCPP), Tris(1,3-dichloro-2-propyl)phosphate (Tri(dichloropropyl)phosphate, TDCP), Triphenylphosphate Triphenyl phosphate, TPhP, Tricresyl phosphate, TCrP, Tri(2-chloroethyl) phosphate, TCEP, Tris(2-ethylhexyl) phosphate Esters (Tri(2-ethylhexyl)phosphate, TEHP), tris(2,3-dibromopropyl)phosphate (tris(2,3-Dibromopropyl)phosphate, TDBPP), 2-ethylhexyl diphenylphosphate (2-Ethylhexyl diphenyl phosphate, EHDPP); the assay method includes the following steps:
[0039] S1: Sample colle...
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Abstract
The invention discloses a method for simultaneously measuring residues of 12 kinds of OPEs (Organophosphate Esters) in a water sample and sediment, belongs to the technical field of measurement of organophosphorus esters, and discloses a method for detecting residues of 12 kinds of phosphate ester compounds in a water body and sediment by using a high-performance liquid chromatography-mass spectrometry technology in combination with solid-phase extraction and liquid-liquid extraction. The method comprises the following steps: enriching a water sample with an HLB (Hydrophile-Lipophile Balance) solid-phase extraction column; extracting sediment with an ultrasonic solvent; analyzing by a high-performance liquid chromatography-mass spectrometer MRM (Multiple Reaction Monitoring) monitoring ion mode; quantifying by an external standard method. Specific to most OPEs, the method has the advantages of low detection limit, high stability and high detection sensitivity; when the method is used for rapidly screening the OPEs in the water body and the sediment, the detection requirement on the residues of 12 kinds of OPEs in the water body and the sediment can be met basically.
Description
technical field [0001] The invention relates to the technical field of measuring organic phosphates, in particular to a method for simultaneously measuring 12 kinds of OPEs residues in water samples and sediments. Background technique [0002] In recent years, due to the biological toxicity and environmental risks of polybrominated diphenyl ethers (PBDEs) flame retardants, countries around the world have gradually restricted and banned the production and application of polybrominated diphenyl ethers. Organophosphate esters (organophosphate esters, OPEs), as the main substitute of brominated flame retardants, have been widely used in plastics, textiles, electronic equipment and household products, and the production and consumption have increased significantly. Since OPEs are mainly added to products in a simple physical way, they inevitably enter the water environment through various channels during their production, use, and disposal. Currently, OPEs are detected in natural...
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IPC IPC(8): G01N30/06G01N30/08
CPCG01N30/06G01N30/08G01N2030/062G01N2030/085
Inventor 张圣虎韩志华徐怀洲宋宁慧吴晟旻张芹陈玫宏
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA