Method for determining 10 kinds of antibiotics in water environment through combination of sample pre-treatment technology and HPLC-MS

Method for determining 10 kinds of antibiotics in water environment through combination of sample pre-treatment technology and HPLC-MS

The present invention relates to a method for determining 10 kinds of antibiotics in a water environment through combination of a sample pre-treatment technology and HPLC-MS, and belongs to the field of detection of safety of trace organic contaminant residue in the water environment. The method is...

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Hauptverfasser: LIANG NING, HUANG PEITING, HOU XIAOHONG, ZHAO LONGSHAN
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INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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creator LIANG NING
HUANG PEITING
HOU XIAOHONG
ZHAO LONGSHAN
description The present invention relates to a method for determining 10 kinds of antibiotics in a water environment through combination of a sample pre-treatment technology and HPLC-MS, and belongs to the field of detection of safety of trace organic contaminant residue in the water environment. The method is characterized in that a water sample is separated and enriched through combination of solid phase extraction and dispersive liquid-liquid microextraction (SPE-DLLME), and then an ultra-high performance liquid chromatography-mass spectrometry instrument (UPLC-MS/MS) is adopted as a detection tool to directly determine the contents of 10 kinds of common antibiotics in the water environment (drinking water, tap water, river water, sewage treatment plant influent and effluent), wherein the 10 kinds of the common antibiotics respectively are sulfadiazine, sulfamethoxazole, oxytetracycline, tetracycline, doxycycline, ciprofloxacin, levofloxacin, chloramphenicol, cefuroxime axetil and tinidazole. According to the present invention, the water sample pre-treatment method and the instrument detection conditions are investigated and optimized, and the optimal SPE-DLLME-UPLC-MS/MS method is established and is successfully applied for the real sample determination; and compared with the traditional method, the method of the present invention has advantages of high sensitivity, high extraction recovery rate, wide application objects, environmental protection, and the like.
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The method is characterized in that a water sample is separated and enriched through combination of solid phase extraction and dispersive liquid-liquid microextraction (SPE-DLLME), and then an ultra-high performance liquid chromatography-mass spectrometry instrument (UPLC-MS/MS) is adopted as a detection tool to directly determine the contents of 10 kinds of common antibiotics in the water environment (drinking water, tap water, river water, sewage treatment plant influent and effluent), wherein the 10 kinds of the common antibiotics respectively are sulfadiazine, sulfamethoxazole, oxytetracycline, tetracycline, doxycycline, ciprofloxacin, levofloxacin, chloramphenicol, cefuroxime axetil and tinidazole. 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subjects INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
title Method for determining 10 kinds of antibiotics in water environment through combination of sample pre-treatment technology and HPLC-MS
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