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Method for Simultaneous Determination of Concentration of Personal Care Products in Surface Water or Sewage

A technology for personal care and surface water, applied in the field of pollutant detection, which can solve the problems of loss of target compounds, lack of sensitivity and selectivity, and low sensitivity of detection methods, and achieve the effect of reducing losses

Active Publication Date: 2020-02-21
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most studies have the disadvantages of not being able to simultaneously measure and lacking sensitivity and selectivity
Moreover, currently developed methods are all for the determination of a specific class of compounds, and information on method validation is very limited
The existing problems in the prior art include degradation and loss of the target compound during transportation and storage, loss of the target compound during the processing of the sample to be tested, low sensitivity of the detection method, lack of selectivity, etc.
The above problems lead to the inability of the current determination methods to accurately determine the composition and concentration of HPC products, let alone the simultaneous determination of multiple components

Method used

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  • Method for Simultaneous Determination of Concentration of Personal Care Products in Surface Water or Sewage
  • Method for Simultaneous Determination of Concentration of Personal Care Products in Surface Water or Sewage
  • Method for Simultaneous Determination of Concentration of Personal Care Products in Surface Water or Sewage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1. Sample collection and pretreatment:

[0038] 1. River water

[0039] Surface water samples were taken from a depth of approximately 50 cm. Take a boat and collect samples with a sampling rod. For each sampling point, 5-6 sub-samples distributed evenly across the width of the river were collected and mixed into a homogeneous sample as the river water sample for that sampling point. In order to preserve the sample, 1000mL sample was added sulfuric acid with a mass fraction of 98% on site to adjust the pH value to 2, and an internal standard was added. Immediately after sampling, the samples were returned to the laboratory, and the samples were kept in a 4°C freezer during transport and stored at 4°C until sample pretreatment. To avoid filtration, transfer the sample to the laboratory to allow the sediment to settle overnight, then process the sample within 1-2 days.

[0040] 2. Sewage

[0041] Sewage samples include raw influent samples of sewage treatment plants ...

Embodiment 2

[0063] 1. Sample collection and pretreatment:

[0064] 1. River water

[0065]Surface water samples were taken from a depth of approximately 50 cm. Take a boat and collect samples with a sampling rod. For each sampling point, 5-6 sub-samples distributed evenly across the width of the river were collected and mixed into a homogeneous sample as the river water sample for that sampling point. In order to preserve the sample, 1000mL sample was added sulfuric acid with a mass fraction of 98% on site to adjust the pH value to 7, and an internal standard was added. Immediately after sampling, the samples were returned to the laboratory, and the samples were kept in a 4°C freezer during transport and stored at 4°C until sample pretreatment. To avoid filtration, transfer the sample to the laboratory to allow the sediment to settle overnight, then process the sample within 1-2 days.

[0066] 2. Sewage

[0067] Sewage samples include raw influent samples of sewage treatment plants a...

Embodiment 3

[0089] 1. Sample collection and pretreatment:

[0090] 1. River water

[0091] Surface water samples were taken from a depth of approximately 50 cm. Take a boat and collect samples with a sampling rod. For each sampling point, 5-6 sub-samples distributed evenly across the width of the river were collected and mixed into a homogeneous sample as the river water sample for that sampling point. In order to preserve the sample, 1000mL sample was added sulfuric acid with a mass fraction of 98% on site to adjust the pH value to 2.5, and an internal standard was added. Immediately after sampling, the samples were returned to the laboratory, and the samples were kept in a 4°C freezer during transport and stored at 4°C until sample pretreatment. To avoid filtration, transfer the sample to the laboratory to allow the sediment to settle overnight, then process the sample within 1-2 days.

[0092] 2. Sewage

[0093] Sewage samples include raw influent samples of sewage treatment plant...

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Abstract

The invention discloses a method for simultaneously measuring concentrations of personal care products in surface water or sewage, and belongs to the technical field of pollutant detection. the specific steps are as follows: (1) preparing a standard curve; (2) sample pretreatment: passing a sample through an HLB solid phase extraction column; carrying out vacuum drying on the HLB solid phase extraction column; eluting to obtain an eluent; and (3) carrying out detection and analysis on the sample obtained in the step (2) by using a high performance liquid chromatography-triple-quadrupole tandemmass spectrometer (UHPLC-MS / MS); and calculating an actual content and the concentration of each component in the sample. The method is low in detection limit, high in sensitivity and high in recovery rate, and is suitable for detecting the contents of the target compounds in an environment liquid sample.

Description

technical field [0001] The invention belongs to the technical field of pollutant detection, and relates to a method for simultaneously measuring the concentration of personal care products in surface water or sewage, in particular to simultaneously measuring surfactants, preservatives, ultraviolet filters, antibacterial agents, Jiale musk and The caffeine way. Background technique [0002] Surfactants, paraben preservatives, UV filters, antimicrobials and related chemicals are widely used as ingredients in Household and Personal Care (HPC) in our daily life. Currently reported advanced analytical methods for these components in HPC include gas or liquid chromatography-mass spectrometry (GC or LC-MS), and GC or LC-MS / MS, etc. However, most studies have the disadvantages that they cannot be measured simultaneously and lack sensitivity and selectivity. Moreover, the currently developed methods all measure a specific class of compounds, and the information on method validation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06
Inventor 张子峰张雪李文龙朱宁正刘丽艳马万里宋维薇李一凡
Owner HARBIN INST OF TECH