Method for detecting concentration of micro-plastics in soil by using thermogravimetric analysis method and application

Method for detecting concentration of micro-plastics in soil by using thermogravimetric analysis method and application

The invention discloses a method for detecting the concentration of micro-plastics in soil by using a thermogravimetric analysis method and application. The method comprises the following steps: (1) uniformly mixing a micro-plastic standard substance with soil, and preparing a micro-plastic soil sta...

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Hauptverfasser: ZHANG WEINAN, HU ZIWAN, CHEN XUERU, PANG XIMING, WU HONGWEI, WU RONGTAI, JIAN XIUMEI, SUN YAN
Format: Patent
Sprache:chi ; eng
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INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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creator ZHANG WEINAN
HU ZIWAN
CHEN XUERU
PANG XIMING
WU HONGWEI
WU RONGTAI
JIAN XIUMEI
SUN YAN
description The invention discloses a method for detecting the concentration of micro-plastics in soil by using a thermogravimetric analysis method and application. The method comprises the following steps: (1) uniformly mixing a micro-plastic standard substance with soil, and preparing a micro-plastic soil standard mixture with at least five concentration gradients; (2) pyrolyzing the micro-plastic soil standard mixture by using a thermogravimetric analyzer, recording the maximum weight loss rate and/or the residual weight rate, and then drawing a standard curve according to the relationship between the concentration of the micro-plastic soil standard mixture and the maximum weight loss rate and/or the residual weight rate to obtain a linear equation; and (3) pyrolyzing the to-be-detected soil sample by using the thermogravimetric analyzer, recording the maximum weight loss rate and/or residual weight rate, and then calculating according to the linear equation to obtain the concentration of the micro-plastic in the to-b
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subjects INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
title Method for detecting concentration of micro-plastics in soil by using thermogravimetric analysis method and application
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