Analytical method for measuring content of soluble lead in domestic ceramic

Analytical method for measuring content of soluble lead in domestic ceramic

The invention discloses an analytical method for measuring content of soluble lead in domestic ceramic. The analytical method comprises the following steps: cleaning a domestic ceramic sample to be measured, naturally airing, dipping a cotton swab in a special kit into a cleaning agent to scrub the...

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Hauptverfasser: LIN LI, WEI BIWEN, JIANG XIAOLIANG, CHEN MEI, ZHONG YUEXIANG, ZENG MING, WU YINQI, LI DAGUANG, WANG BIN, YI BIHUA
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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 LIN LI
WEI BIWEN
JIANG XIAOLIANG
CHEN MEI
ZHONG YUEXIANG
ZENG MING
WU YINQI
LI DAGUANG
WANG BIN
YI BIHUA
description The invention discloses an analytical method for measuring content of soluble lead in domestic ceramic. The analytical method comprises the following steps: cleaning a domestic ceramic sample to be measured, naturally airing, dipping a cotton swab in a special kit into a cleaning agent to scrub the surface of the domestic ceramic sample back and forth for 30 s, putting the cotton swab onto a color test paper board, dripping a drop of a color developing agent onto the color test paper board, standing for 2 min, contrasting the color test paper board and a standard operation color level contrast card under the condition of bright light, and determining result range of soluble lead content in the sample by a visual colorimetric method. In comparison with the prior art, the invention has the following advantages: detection limit of lead is 20 ng; the whole analytical testing process lasts for 5-10 min; analytical time is greatly shortened; and work efficiency is raised. Fitting curve regression coefficient of lea
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The analytical method comprises the following steps: cleaning a domestic ceramic sample to be measured, naturally airing, dipping a cotton swab in a special kit into a cleaning agent to scrub the surface of the domestic ceramic sample back and forth for 30 s, putting the cotton swab onto a color test paper board, dripping a drop of a color developing agent onto the color test paper board, standing for 2 min, contrasting the color test paper board and a standard operation color level contrast card under the condition of bright light, and determining result range of soluble lead content in the sample by a visual colorimetric method. In comparison with the prior art, the invention has the following advantages: detection limit of lead is 20 ng; the whole analytical testing process lasts for 5-10 min; analytical time is greatly shortened; and work efficiency is raised. 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subjects INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
title Analytical method for measuring content of soluble lead in domestic ceramic
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